계: Security Features

소프트웨어 보안은 보안 소프트웨어가 아닙니다. 여기서는 인증, 액세스 제어, 기밀성, 암호화, 권한 관리 등의 항목에 대해 설명합니다.

315 개 항목 찾음
취약점
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.

...
DATA: lo_hmac TYPE Ref To cl_abap_hmac,
Input_string type string.

CALL METHOD cl_abap_hmac=>get_instance
EXPORTING
if_algorithm = 'SHA3'
if_key = space
RECEIVING
ro_object = lo_hmac.

" update HMAC with input
lo_hmac->update( if_data = input_string ).

" finalise hmac
lo_digest->final( ).

...
Example 1에 표시된 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.abap.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.

...
using (HMAC hmac = HMAC.Create("HMACSHA512"))
{
string hmacKey = "";
byte[] keyBytes = Encoding.ASCII.GetBytes(hmacKey);
hmac.Key = keyBytes;
...
}
...
Example 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.dotnet.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키는 사용하지 마십시오. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.


import "crypto/hmac"
...
hmac.New(md5.New, []byte(""))
...
Example 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 확인할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.golang.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.

...
private static String hmacKey = "";
byte[] keyBytes = hmacKey.getBytes();
...
SecretKeySpec key = new SecretKeySpec(keyBytes, "SHA1");
Mac hmac = Mac.getInstance("HmacSHA1");
hmac.init(key);
...
Example 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.java.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 빈 HMAC 키를 사용하여 HMAC 해시를 생성합니다.

...
let hmacKey = "";
let hmac = crypto.createHmac("SHA256", hmacKey);
hmac.update(data);
...
예제 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.javascript.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.


...
CCHmac(kCCHmacAlgSHA256, "", 0, plaintext, plaintextLen, &output);
...
Example 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.objc.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.


import hmac
...
mac = hmac.new("", plaintext).hexdigest()
...
Example 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.python.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.

...
digest = OpenSSL::HMAC.digest('sha256', '', data)
...
Example 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.ruby.key_management_empty_hmac_key
Abstract
빈 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
빈 HMAC 키를 사용하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 크기에 따라 달라집니다. 빈 키를 사용하면 HMAC 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 빈 키를 사용하여 HMAC를 계산합니다.


...
CCHmac(UInt32(kCCHmacAlgSHA256), "", 0, plaintext, plaintextLen, &output)
...
Example 1의 코드는 성공적으로 실행될 수 있지만 코드에 접근할 수 있는 사용자는 빈 HMAC 키가 사용되고 있음을 알아낼 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 HMAC 키를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다. 또한 Example 1의 코드는 forgery 및 key recovery 공격에 취약합니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.swift.key_management_empty_hmac_key
Abstract
해당 비밀번호 인수에 대해 빈 값을 전달받은 비밀번호 기반 키 파생 함수를 통해 생성된 키를 사용하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


...
Rfc2898DeriveBytes rdb = new Rfc2898DeriveBytes("", salt,100000);
...


코드에 접근할 수 있는 사용자라면 누구나 빈 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.dotnet.key_management_empty_pbe_password
Abstract
빈 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 빈 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


...
var encryptor = new StrongPasswordEncryptor();
var encryptedPassword = encryptor.encryptPassword("");
...


코드에 접근할 수 있는 사용자라면 누구나 빈 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.java.key_management_empty_pbe_password
Abstract
PBKDF에 빈 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 오로지 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


const pbkdfPassword = "";
crypto.pbkdf2(
pbkdfPassword,
salt,
numIterations,
keyLen,
hashAlg,
function (err, derivedKey) { ... }
)


코드에 접근할 수 있는 사용자라면 누구나 빈 비밀번호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.javascript.key_management_empty_pbe_password
Abstract
빈 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 빈 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


...
CCKeyDerivationPBKDF(kCCPBKDF2,
"",
0,
salt,
saltLen
kCCPRFHmacAlgSHA256,
100000,
derivedKey,
derivedKeyLen);
...


코드에 접근할 수 있는 사용자라면 누구나 빈 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.

예제 2: 일부 하위 레벨 API에서는 특정 인수의 길이를 인수 값과 함께 전달해야 합니다. 이렇게 해야 함수가 메모리의 인수 위치에서 시작되는 지정 개수의 연속된 바이트로 인수 값을 읽을 수 있습니다. 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 길이 인수로 0을 전달합니다.


...
CCKeyDerivationPBKDF(kCCPBKDF2,
password,
0,
salt,
saltLen
kCCPRFHmacAlgSHA256,
100000,
derivedKey,
derivedKeyLen);
...


이 시나리오에서는 password에 적절히 관리되는 강력한 암호 값이 포함되어 있더라도 해당 길이를 0으로 전달하여 값이 비거나, null이거나, 예기치 않게 약한 암호 값을 생성하게 됩니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.objc.key_management_empty_pbe_password
Abstract
빈 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 빈 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


...
$zip = new ZipArchive();
$zip->open("test.zip", ZipArchive::CREATE);
$zip->setEncryptionIndex(0, ZipArchive::EM_AES_256, "");
...


코드에 액세스할 수 있는 사람이라면 누구나 빈 비밀번호 인수를 기반으로 하나 이상의 암호화 키를 생성하는지 확인할 수 있습니다. 또한 기본적인 크랙 기술을 사용하는 사람이라면 누구나 잘못된 키로 보호되는 모든 리소스에 성공적으로 액세스할 수 있습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.php.key_management_empty_pbe_password
Abstract
빈 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 빈 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


from hashlib import pbkdf2_hmac
...
dk = pbkdf2_hmac('sha256', '', salt, 100000)
...


코드에 접근할 수 있는 사용자라면 누구나 빈 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.python.key_management_empty_pbe_password
Abstract
빈 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 빈 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


...
key = OpenSSL::PKCS5::pbkdf2_hmac('', salt, 100000, 256, 'SHA256')
...


코드에 접근할 수 있는 사용자라면 누구나 빈 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.ruby.key_management_empty_pbe_password
Abstract
빈 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 빈 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 빈 문자열을 전달합니다.


...
CCKeyDerivationPBKDF(CCPBKDFAlgorithm(kCCPBKDF2),
"",
0,
salt,
saltLen,
CCPseudoRandomAlgorithm(kCCPRFHmacAlgSHA256),
100000,
derivedKey,
derivedKeyLen)
...


코드에 접근할 수 있는 사용자라면 누구나 빈 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 빈 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 빈 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 빈 암호의 사용 증거를 추출할 수 있습니다.

예제 2: 일부 하위 레벨 API에서는 특정 인수의 길이를 인수 값과 함께 전달해야 합니다. 이렇게 해야 함수가 메모리의 인수 위치에서 시작되는 지정 개수의 연속된 바이트로 인수 값을 읽을 수 있습니다. 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 길이 인수로 0을 전달합니다.


...
CCKeyDerivationPBKDF(CCPBKDFAlgorithm(kCCPBKDF2),
password,
0,
salt,
saltLen,
CCPseudoRandomAlgorithm(kCCPRFHmacAlgSHA256),
100000,
derivedKey,
derivedKeyLen)
...


이 시나리오에서는 password에 적절히 관리되는 강력한 암호 값이 포함되어 있더라도 해당 길이를 0으로 전달하여 값이 비거나, null이거나, 예기치 않게 약한 암호 값을 생성하게 됩니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.swift.key_management_empty_pbe_password
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드된 암호화 키를 사용합니다.


...
encryptionKey = "lakdsljkalkjlksdfkl".
...


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.abap.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드된 암호화 키를 사용합니다.


...
var encryptionKey:String = "lakdsljkalkjlksdfkl";
var key:ByteArray = Hex.toArray(Hex.fromString(encryptionKey));
...
var aes.ICipher = Crypto.getCipher("aes-cbc", key, padding);
...


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.actionscript.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코딩하면 프로젝트의 모든 개발자가 암호화 키를 볼 수 있고 문제를 수정하기가 매우 어렵기 때문에 하드코딩하지 마십시오. 코드가 운영 단계로 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 손상되면 조직은 보안과 시스템 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 하드코드된 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
Blob encKey = Blob.valueOf('YELLOW_SUBMARINE');
Blob encrypted = Crypto.encrypt('AES128', encKey, iv, input);
...


코드에 접근할 수 있는 누구든 암호화 키를 볼 수 있습니다. 응용 프로그램을 공개한 후에는 소프트웨어 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 응용 프로그램 실행 파일에 액세스할 수 있는 모든 공격자는 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.apex.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드 암호화 키를 사용합니다.


...
using (SymmetricAlgorithm algorithm = SymmetricAlgorithm.Create("AES"))
{
string encryptionKey = "lakdsljkalkjlksdfkl";
byte[] keyBytes = Encoding.ASCII.GetBytes(encryptionKey);
algorithm.Key = keyBytes;
...
}


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.dotnet.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하는 것은 좋은 방법이 아닙니다. 암호화 키 하드코드는 모든 프로젝트 개발자가 암호화 키를 볼 수 있을 뿐 아니라 문제 해결을 극히 어렵게 만듭니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드 암호화 키를 사용합니다.


...
char encryptionKey[] = "lakdsljkalkjlksdfkl";
...


코드에 접근할 수 있는 누구든 암호화 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 암호화 키를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 접근할 권한을 가지면 사용되는 암호화 키 값이 들어갈 코드를 디스어셈블할 수 있습니다.
References
[1] Windows Data Protection Microsoft
[2] Encrypting Your App's Files Apple
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.cpp.hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드된 암호화 키를 사용합니다.


...
<cfset encryptionKey = "lakdsljkalkjlksdfkl" />
<cfset encryptedMsg = encrypt(msg, encryptionKey, 'AES', 'Hex') />
...


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.cfml.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드 암호화 키를 사용합니다.


...
key := []byte("lakdsljkalkjlksd");
block, err := aes.NewCipher(key)
...


코드에 접근할 수 있는 누구든 암호화 키에 접근할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 접근할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] MSC03-J. Never hard code sensitive information CERT
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[38] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.golang.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드 암호화 키를 사용합니다.


...
private static final String encryptionKey = "lakdsljkalkjlksdfkl";
byte[] keyBytes = encryptionKey.getBytes();
SecretKeySpec key = new SecretKeySpec(keyBytes, "AES");
Cipher encryptCipher = Cipher.getInstance("AES");
encryptCipher.init(Cipher.ENCRYPT_MODE, key);
...


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] MSC03-J. Never hard code sensitive information CERT
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[38] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.java.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드된 암호화 키를 사용합니다.


...
var crypto = require('crypto');
var encryptionKey = "lakdsljkalkjlksdfkl";
var algorithm = 'aes-256-ctr';
var cipher = crypto.createCipher(algorithm, encryptionKey);
...


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.javascript.key_management_hardcoded_encryption_key
Abstract
Hardcoded Password는 해결하기 어려운 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
절대 암호를 하드코드하지 마십시오. 모든 프로젝트 개발자에게 암호를 노출할 뿐 아니라 문제 해결을 극히 어렵게 만듭니다. 코드가 운영 단계에 들어간 후에는 아마도 프로그램 패치만이 암호를 변경할 수 있는 유일한 방법일 것입니다. 암호로 보호되는 계정이 손상되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.
예제 1: 다음 JSON은 Hardcoded Password를 사용합니다.


...
{
"username":"scott"
"password":"tiger"
}
...


이 구성은 유효한 것일 수 있지만, 구성에 액세스할 수 있는 사용자는 암호에도 액세스할 수 있습니다. 프로그램이 릴리스된 후에는 기본 사용자 계정 "scott"을 "tiger"라는 암호로 변경하는 것이 어렵습니다. 누구든 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.json.password_management_hardcoded_password
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드 암호화 키를 사용합니다.


...
NSString encryptionKey = "lakdsljkalkjlksdfkl";
...


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Encrypting Your App's Files Apple
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[38] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.objc.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하는 것은 좋은 방법이 아닙니다. 암호화 키 하드코드는 모든 프로젝트 개발자가 암호화 키를 볼 수 있을 뿐 아니라 문제 해결을 극히 어렵게 만듭니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.
예제 1: 다음 코드는 암호화 정보에 하드코드 암호화 키를 사용합니다.


...
$encryption_key = 'hardcoded_encryption_key';

//$filter = new Zend_Filter_Encrypt('hardcoded_encryption_key');
$filter = new Zend_Filter_Encrypt($encryption_key);

$filter->setVector('myIV');

$encrypted = $filter->filter('text_to_be_encrypted');
print $encrypted;
...


이 코드는 바르게 실행되지만 이 코드에 대한 접근 권한이 있는 사용자면 누구나 암호화 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password 키(‘hardcoded_encryption_key’)를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에서 암호화된 데이터에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.php.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.



코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.sql.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하는 것은 좋은 방법이 아닙니다. 암호화 키 하드코드는 모든 프로젝트 개발자가 암호화 키를 볼 수 있을 뿐 아니라 문제 해결을 극히 어렵게 만듭니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.
예제 1: 다음 코드는 암호화 정보에 하드코드 암호화 키를 사용합니다.

...
from Crypto.Ciphers import AES
encryption_key = b'_hardcoded__key_'
cipher = AES.new(encryption_key, AES.MODE_CFB, iv)
msg = iv + cipher.encrypt(b'Attack at dawn')
...


이 코드는 바르게 실행되지만 이 코드에 대한 접근 권한이 있는 사용자면 누구나 암호화 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password 키 _hardcoded__key_를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에서 암호화된 데이터에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.python.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하는 것은 좋은 방법이 아닙니다. 암호화 키 하드코드는 모든 프로젝트 개발자가 암호화 키를 볼 수 있을 뿐 아니라 문제 해결을 극히 어렵게 만듭니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.
예제 1: 다음 코드는 하드코드 암호화 키를 사용합니다.


require 'openssl'
...
encryption_key = 'hardcoded_encryption_key'
...
cipher = OpenSSL::Cipher::AES.new(256, 'GCM')
cipher.encrypt
...
cipher.key=encryption_key
...


이 코드는 바르게 실행되지만 이 코드에 대한 접근 권한이 있는 사용자면 누구나 암호화 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password 키 “hardcoded_encryption_key”를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에서 암호화된 데이터에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.ruby.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하는 것은 좋은 방법이 아닙니다. 암호화 키 하드코드는 모든 프로젝트 개발자가 암호화 키를 볼 수 있을 뿐 아니라 문제 해결을 극히 어렵게 만듭니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드된 암호화 키를 사용합니다.


...
let encryptionKey = "YELLOW_SUBMARINE"
...
예제 2: 다음 코드는 하드코드된 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
CCCrypt(UInt32(kCCEncrypt),
UInt32(kCCAlgorithmAES128),
UInt32(kCCOptionPKCS7Padding),
"YELLOW_SUBMARINE",
16,
iv,
plaintext,
plaintext.length,
ciphertext.mutableBytes,
ciphertext.length,
&numBytesEncrypted)
...


코드에 접근할 수 있는 누구든 암호화 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 암호화 키를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 접근할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Encrypting Your App's Files Apple
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[38] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.swift.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코딩하면 프로젝트의 모든 개발자가 암호화 키를 볼 수 있고 문제를 수정하기가 매우 어렵기 때문에 하드코딩하지 마십시오. 코드가 운영 단계로 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 손상되면 조직은 보안과 시스템 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 예제는 .pem 파일 내의 암호화 키를 보여줍니다.


...
-----BEGIN RSA PRIVATE KEY-----
MIICXwIBAAKBgQCtVacMo+w+TFOm0p8MlBWvwXtVRpF28V+o0RNPx5x/1TJTlKEl
...
DiJPJY2LNBQ7jS685mb6650JdvH8uQl6oeJ/aUmq63o2zOw=
-----END RSA PRIVATE KEY-----
...


코드에 접근할 수 있는 누구든 암호화 키를 볼 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 응용 프로그램 실행 파일에 액세스할 수 있는 모든 공격자는 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.regex.universal.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코드하면 모든 프로젝트 개발자가 암호화 키를 볼 수 있고 문제 해결을 극히 어렵게 만들기 때문에 좋은 방법이 아닙니다. 코드가 운영 단계에 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 하드코드된 암호화 키를 사용합니다.


...
Dim encryptionKey As String
Set encryptionKey = "lakdsljkalkjlksdfkl"
Dim AES As New System.Security.Cryptography.RijndaelManaged
On Error GoTo ErrorHandler
AES.Key = System.Text.Encoding.ASCII.GetBytes(encryptionKey)
...
Exit Sub
...


코드에 액세스할 수 있는 모든 사람이 암호화 키에 액세스할 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에 액세스할 수 있으면 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.vb.key_management_hardcoded_encryption_key
Abstract
하드코드 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
암호화 키를 하드코딩하면 프로젝트의 모든 개발자가 암호화 키를 볼 수 있고 문제를 수정하기가 매우 어렵기 때문에 하드코딩하지 마십시오. 코드가 운영 단계로 들어간 후 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 암호화 키로 보호되는 계정이 손상되면 조직은 보안과 시스템 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 예제는 Ruby on Rails 구성의 secrets.yml 파일 내 암호화 키를 보여줍니다.


...
production:
secret_key_base: 0ab25e26286c4fb9f7335947994d83f19861354f19702b7bbb84e85310b287ba3cdc348f1f19c8cdc08a7c6c5ad2c20ad31ecda177d2c74aa2d48ec4a346c40e
...


코드에 접근할 수 있는 누구든 암호화 키를 볼 수 있습니다. 응용 프로그램을 공개한 후에는 프로그램에 패치를 적용하지 않고는 암호화 키를 변경할 방법이 없습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 응용 프로그램 실행 파일에 액세스할 수 있는 모든 공격자는 암호화 키 값을 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.yaml.key_management_hardcoded_encryption_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.

...
DATA: lo_hmac TYPE Ref To cl_abap_hmac,
Input_string type string.

CALL METHOD cl_abap_hmac=>get_instance
EXPORTING
if_algorithm = 'SHA3'
if_key = 'secret_key'
RECEIVING
ro_object = lo_hmac.

" update HMAC with input
lo_hmac->update( if_data = input_string ).

" finalise hmac
lo_digest->final( ).

...


이 코드는 성공적으로 실행되지만 이 코드에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “secret_key”를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.abap.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.

...
using (HMAC hmac = HMAC.Create("HMACSHA512"))
{
string hmacKey = "lakdsljkalkjlksdfkl";
byte[] keyBytes = Encoding.ASCII.GetBytes(hmacKey);
hmac.Key = keyBytes;
...
}


이 코드는 성공적으로 실행되지만 이 코드에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “hmacKey”를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.dotnet.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키는 하드코드하지 마십시오. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.


import "crypto/hmac"
...
hmac.New(sha256.New, []byte("secret"))
...


이 코드는 성공적으로 실행되지만 소스에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “secret”을 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.golang.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.

...
private static String hmacKey = "lakdsljkalkjlksdfkl";
byte[] keyBytes = hmacKey.getBytes();
...
SecretKeySpec key = new SecretKeySpec(keyBytes, "SHA1");
Mac hmac = Mac.getInstance("HmacSHA1");
hmac.init(key);
...


이 코드는 성공적으로 실행되지만 이 코드에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “hmacKey”를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] MSC03-J. Never hard code sensitive information CERT
[4] Standards Mapping - Common Weakness Enumeration CWE ID 321
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[12] Standards Mapping - FIPS200 IA
[13] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[17] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[18] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[19] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[20] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[21] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[23] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[25] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[38] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[39] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[40] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[41] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[62] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[63] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.java.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 모든 사용자가 이 키를 사용할 수 있으며, 그에 따라 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.

const hmacKey = "a secret";
const hmac = createHmac('sha256', hmacKey);
hmac.update(data);
...


이 코드는 성공적으로 실행되지만 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 hmacKey를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.javascript.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.


...
CCHmac(kCCHmacAlgSHA256, "secret", 6, plaintext, plaintextLen, &output);
...


이 코드는 성공적으로 실행되지만 이 코드에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “secret”을 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.objc.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.


import hmac
...
mac = hmac.new("secret", plaintext).hexdigest()
...


이 코드는 성공적으로 실행되지만 이 코드에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “secret”을 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.python.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.
예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.

...
digest = OpenSSL::HMAC.digest('sha256', 'secret_key', data)
...


이 코드는 성공적으로 실행되지만 이 코드에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “secret_key”를 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.ruby.key_management_hardcoded_hmac_key
Abstract
하드코드된 HMAC 키는 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
HMAC 키를 하드코드하는 것은 좋은 방법이 아닙니다. HMAC의 암호화 효력은 메시지 authentication 값의 계산 및 확인에 사용되는 암호 키의 신뢰성에 따라 달라집니다. HMAC 키를 하드코드하면 소스에 접근할 수 있는 사용자라면 누구나 이 키를 볼 수 있으며 그에 따라 함수의 암호화 효력이 손상됩니다.

예제 1: 다음 코드는 하드코드된 키를 사용하여 HMAC를 계산합니다.


...
CCHmac(UInt32(kCCHmacAlgSHA256), "secret", 6, plaintext, plaintextLen, &output)
...


이 코드는 성공적으로 실행되지만 이 코드에 대한 접근 권한이 있는 사용자는 HMAC 키에 접근할 수 있습니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 하드코드된 HMAC 키 “secret”을 변경할 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 HMAC 함수를 손상시킬 수 있습니다.
References
[1] RFC 2104 - HMAC: Keyed-Hashing for Message Authentication Internet Engineering Task Force (IETF)
[2] New Results on NMAC/HMAC when Instantiated with Popular Hash Functions Journal of Universal Computer Science (J.UCS)
[3] Standards Mapping - Common Weakness Enumeration CWE ID 321
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[11] Standards Mapping - FIPS200 IA
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[17] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[19] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[20] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.7.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.swift.key_management_hardcoded_hmac_key
Abstract
하드코드된 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 하드코드된 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 빈 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 빈 비밀번호를 변경할 수 없는 경우가 많습니다. 빈 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


...
Rfc2898DeriveBytes rdb = new Rfc2898DeriveBytes("password", salt,100000);
...


코드에 접근할 수 있는 사용자라면 누구나 Hardcoded Password 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.dotnet.key_management_hardcoded_pbe_password
Abstract
하드코드된 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 하드코드된 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 하드코드된 값을 전달하지 마십시오. 이 경우, 파생되는 키는 대개 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 하드코드된 비밀번호를 변경할 수 없는 경우가 많습니다. 하드코드된 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


...
var encryptor = new StrongPasswordEncryptor();
var encryptedPassword = encryptor.encryptPassword("password");
...


코드에 접근할 수 있는 사용자라면 누구나 Hardcoded Password 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.java.key_management_hardcoded_pbe_password
Abstract
hardcoded password를 기반으로 암호화 키를 생성하여 사용하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 하드코드된 값을 전달하지 마십시오. 이 경우, 파생되는 키는 대개 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 하드코드된 비밀번호를 변경할 수 없는 경우가 많습니다. 하드코드된 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


const pbkdfPassword = "a secret";
crypto.pbkdf2(
pbkdfPassword,
salt,
numIterations,
keyLen,
hashAlg,
function (err, derivedKey) { ... }
)


코드에 접근할 수 있는 사용자라면 누구나 하드코드된 비밀번호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.javascript.key_management_hardcoded_pbe_password
Abstract
하드코드된 비밀번호를 기반으로 암호화 키를 생성하여 사용하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 하드코드된 값을 전달하지 마십시오. 이 경우, 파생되는 키는 대개 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 하드코드된 비밀번호를 변경할 수 없는 경우가 많습니다. 하드코드된 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


...
CCKeyDerivationPBKDF(kCCPBKDF2,
"secret",
6,
salt,
saltLen
kCCPRFHmacAlgSHA256,
100000,
derivedKey,
derivedKeyLen);
...


코드에 접근할 수 있는 사용자라면 누구나 Hardcoded Password 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.objc.key_management_hardcoded_pbe_password
Abstract
하드코드된 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 하드코드된 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 하드코드된 값을 전달하지 마십시오. 이 경우, 파생되는 키는 대개 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 하드코드된 비밀번호를 변경할 수 없는 경우가 많습니다. 하드코드된 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


...
$zip = new ZipArchive();
$zip->open("test.zip", ZipArchive::CREATE);
$zip->setEncryptionIndex(0, ZipArchive::EM_AES_256, "hardcodedpassword");
...


코드에 액세스할 수 있는 사람이라면 누구나 하드코드된 비밀번호 인수를 기반으로 하나 이상의 암호화 키를 생성하는지 확인할 수 있습니다. 또한 기본적인 크랙 기술을 사용하는 사람이라면 누구나 잘못된 키로 보호되는 모든 리소스에 성공적으로 액세스할 수 있습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.php.key_management_hardcoded_pbe_password
Abstract
하드코드된 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 하드코드된 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 하드코드된 값을 전달하지 마십시오. 이 경우, 파생되는 키는 대개 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 하드코드된 비밀번호를 변경할 수 없는 경우가 많습니다. 하드코드된 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


from hashlib import pbkdf2_hmac
...
dk = pbkdf2_hmac('sha256', 'password', salt, 100000)
...


코드에 접근할 수 있는 사용자라면 누구나 Hardcoded Password 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.python.key_management_hardcoded_pbe_password
Abstract
하드코드된 비밀번호는 PBKDF(비밀번호 기반 키 파생 함수)에서 키를 생성하는 데 사용됩니다. PBKDF에 하드코드된 비밀번호를 제공하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킵니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 하드코드된 값을 전달하지 마십시오. 이 경우, 파생되는 키는 대개 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 하드코드된 비밀번호를 변경할 수 없는 경우가 많습니다. 하드코드된 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


...
key = OpenSSL::PKCS5::pbkdf2_hmac('password', salt, 100000, 256, 'SHA256')
...


코드에 접근할 수 있는 사용자라면 누구나 Hardcoded Password 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.ruby.key_management_hardcoded_pbe_password
Abstract
하드코드된 비밀번호를 기반으로 암호화 키를 생성하여 사용하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
암호화 PBKDF(비밀번호 기반 키 파생 함수)에 대한 비밀번호 인수로 하드코드된 값을 전달하지 마십시오. 이 경우, 파생되는 키는 대개 제공된 솔트를 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 하드코드된 비밀번호를 변경할 수 없는 경우가 많습니다. 하드코드된 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 PBKDF에 대한 비밀번호 인수로 하드코드된 값을 전달합니다.


...
CCKeyDerivationPBKDF(CCPBKDFAlgorithm(kCCPBKDF2),
"secret",
6,
salt,
saltLen,
CCPseudoRandomAlgorithm(kCCPRFHmacAlgSHA256),
100000,
derivedKey,
derivedKeyLen)
...


코드에 접근할 수 있는 사용자라면 누구나 Hardcoded Password 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자라면 누구나 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 hardcoded password를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 Hardcoded Password를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 hardcoded password의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798
[37] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003310 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.swift.key_management_hardcoded_pbe_password
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어렵게 만들기 때문에 좋은 방법이 아닙니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드에서는 null 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
var encryptionKey:ByteArray = null;
...
var aes.ICipher = Crypto.getCipher("aes-cbc", encryptionKey, padding);
...


이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 응용 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.actionscript.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하는 것은 좋은 방법이 아닙니다. null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어려워집니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 null 암호화 키를 사용합니다.


...
char encryptionKey[] = null;
...


이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Encrypting Your App's Files Apple
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.cpp.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어렵게 만들기 때문에 좋은 방법이 아닙니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드에서는 null 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
aes.NewCipher(nil)
...


이 코드에 접근할 수 있는 사용자는 null 암호화 키가 사용되고 있음을 확인할 수 있습니다. 또한 기본적인 크랙 기법이라도 사용할 수 있는 사용자는 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 응용 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.golang.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어렵게 만들기 때문에 좋은 방법이 아닙니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드에서는 null 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
SecretKeySpec key = null;
....
Cipher encryptCipher = Cipher.getInstance("AES");
encryptCipher.init(Cipher.ENCRYPT_MODE, key);
...


이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 응용 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.java.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어렵게 만들기 때문에 좋은 방법이 아닙니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드에서는 null 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
var crypto = require('crypto');
var encryptionKey = null;
var algorithm = 'aes-256-ctr';
var cipher = crypto.createCipher(algorithm, encryptionKey);
...


이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 응용 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.javascript.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어렵게 만들기 때문에 좋은 방법이 아닙니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드에서는 null 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
CCCrypt(kCCEncrypt,
kCCAlgorithmAES,
kCCOptionPKCS7Padding,
nil,
0,
iv,
plaintext,
sizeof(plaintext),
ciphertext,
sizeof(ciphertext),
&numBytesEncrypted);
...


이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 응용 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Encrypting Your App's Files Apple
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.objc.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null을 암호화 키 변수로 지정하는 것은 공격자에게 민감하고 암호화된 정보를 노출시킬 수 있으므로 잘못된 방법입니다. null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어려워집니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 암호화 키 변수를 null로 초기화합니다.


...
$encryption_key = NULL;

$filter = new Zend_Filter_Encrypt($encryption_key);

$filter->setVector('myIV');

$encrypted = $filter->filter('text_to_be_encrypted');
print $encrypted;
...

코드에 접근할 수 있는 사용자는 누구든지 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이는 누구든지 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Windows Data Protection Microsoft
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.php.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어렵게 만들기 때문에 좋은 방법이 아닙니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.



이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 응용 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.sql.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
None을 암호화 키 변수로 지정하는 것은 공격자에게 민감하고 암호화된 정보를 노출시킬 수 있으므로 잘못된 방법입니다. null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어려워집니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드는 암호화 키 변수를 null로 초기화합니다.

...
from Crypto.Ciphers import AES
cipher = AES.new(None, AES.MODE_CFB, iv)
msg = iv + cipher.encrypt(b'Attack at dawn')
...


코드에 접근할 수 있는 사용자는 누구든지 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이는 누구든지 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.python.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하는 것은 좋은 방법이 아닙니다. null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어려워집니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

코드에 접근할 수 있는 사용자는 누구든지 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이는 누구든지 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.ruby.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하는 것은 좋은 방법이 아닙니다. null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어려워집니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드에서는 null 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
CCCrypt(UInt32(kCCEncrypt),
UInt32(kCCAlgorithmAES128),
UInt32(kCCOptionPKCS7Padding),
nil,
0,
iv,
plaintext,
plaintext.length,
ciphertext.mutableBytes,
ciphertext.length,
&numBytesEncrypted)
...


이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Encrypting Your App's Files Apple
[2] Standards Mapping - Common Weakness Enumeration CWE ID 321
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.swift.key_management_null_encryption_key
Abstract
Null 암호화 키는 쉽게 해결할 수 없는 방식으로 보안을 침해할 수 있습니다.
Explanation
null 암호화 키를 사용하면 양호한 암호화 알고리즘을 통해 제공되는 보호 수준이 크게 감소할 뿐 아니라 문제 해결도 극도로 어렵게 만들기 때문에 좋은 방법이 아닙니다. 잘못된 코드가 운영 단계에 들어간 후 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. null 암호화 키로 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택해야 합니다.

예제 1: 다음 코드에서는 null 암호화 키를 사용하여 AES 암호화를 수행합니다.


...
Dim encryptionKey As String
Set encryptionKey = vbNullString
Dim AES As New System.Security.Cryptography.RijndaelManaged
On Error GoTo ErrorHandler
AES.Key = System.Text.Encoding.ASCII.GetBytes(encryptionKey)
...
Exit Sub
...


이 코드에 접근할 수 있는 사용자라면 누구나 null 암호화 키가 사용되고 있음을 알 수 있을 뿐 아니라 기본적인 크랙 기법이라도 사용할 수 있는 사람이라면 누구나 암호화된 데이터를 성공적으로 해독할 가능성이 매우 높습니다. 응용 프로그램을 공개한 후에는 null 암호화 키를 변경하려면 소프트웨어 패치가 필요합니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호화 키의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450, CCI-002478
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-003100 CAT II, APSC-DV-003310 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.vb.key_management_null_encryption_key
Abstract
null 암호를 기반으로 암호화 키를 생성하여 사용하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
암호화 암호 기반 키 파생 함수에 대한 암호 인수로 null 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 결과로 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 null 암호를 변경할 수 없는 경우가 많습니다. null 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 암호 기반 키 파생 함수에 대한 암호 인수로 null 값을 전달합니다.


...
var encryptor = new StrongPasswordEncryptor();
var encryptedPassword = encryptor.encryptPassword(null);
...


코드에 접근할 수 있는 사용자는 누구든지 null 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자는 누구든지 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 null 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 null 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.semantic.java.key_management_null_pbe_password
Abstract
null 암호를 기반으로 암호화 키를 생성하여 사용하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
암호화 암호 기반 키 파생 함수에 대한 암호 인수로 null 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 결과로 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 null 암호를 변경할 수 없는 경우가 많습니다. null 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 암호 기반 키 파생 함수에 대한 암호 인수로 null 값을 전달합니다.


...
CCKeyDerivationPBKDF(kCCPBKDF2,
nil,
0,
salt,
saltLen
kCCPRFHmacAlgSHA256,
100000,
derivedKey,
derivedKeyLen);
...


코드에 접근할 수 있는 사용자는 누구든지 null 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자는 누구든지 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 null 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 null 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.objc.key_management_null_pbe_password
Abstract
null 암호를 기반으로 암호화 키를 생성하여 사용하면 쉽게 해결할 수 없는 방식으로 시스템 보안을 손상시킬 수 있습니다.
Explanation
암호화 암호 기반 키 파생 함수에 대한 암호 인수로 null 값을 전달하는 것은 좋은 방법이 아닙니다. 이 경우, 결과로 파생되는 키는 제공된 솔트만을 기반으로 하게 되어 크게 약해지며 문제를 해결하기도 극도로 어렵습니다. 잘못된 코드가 운영 단계에 들어간 후에는 소프트웨어 패치 없이는 null 암호를 변경할 수 없는 경우가 많습니다. null 비밀번호를 토대로 파생된 키를 통해 보호되는 계정이 침해되면 시스템 소유자는 보안과 가용성 중 한 가지를 선택할 수밖에 없습니다.

예제 1: 다음 코드에서는 암호화 암호 기반 키 파생 함수에 대한 암호 인수로 null 값을 전달합니다.


...
CCKeyDerivationPBKDF(CCPBKDFAlgorithm(kCCPBKDF2),
nil,
0,
salt,
saltLen,
CCPseudoRandomAlgorithm(kCCPRFHmacAlgSHA256),
100000,
derivedKey,
derivedKeyLen)
...


코드에 접근할 수 있는 사용자는 누구든지 null 암호 인수를 기반으로 하나 이상의 암호화 키가 생성된다는 것을 알아차릴 수 있을 뿐 아니라, 기본적인 크랙 기법이라도 사용할 수 있는 사용자는 누구든지 잘못된 키를 통해 보호되는 리소스에 성공적으로 접근할 수 있는 가능성이 매우 높습니다. 공격자가 null 암호를 기반으로 하는 키를 생성하는 데 사용되는 솔트 값에도 접근할 수 있는 경우 이러한 키를 크랙하는 것은 하찮은 일에 불과합니다. 프로그램을 공개한 후에는 프로그램에 패치를 적용해야만 null 암호를 변경할 수 있습니다. 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다. 공격자가 응용 프로그램의 실행 파일에만 접근할 수 있더라도 null 암호의 사용 증거를 추출할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 321
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [16] CWE ID 798
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287, [18] CWE ID 798
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.9.1 Cryptographic Software and Devices Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.4 Service Authentication Requirements (L2 L3), 3.5.2 Token-based Session Management (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.4.1 Secret Management (L2 L3), 6.4.2 Secret Management (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.3 Malicious Code Search (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-2
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.swift.key_management_null_pbe_password
Abstract
암호화 또는 서명 개인 키를 일반 텍스트로 저장해서는 안 됩니다.
Explanation
암호화 또는 서명에 사용되는 개인 키는 민감한 데이터로 간주해야 하며, 강력한 암호로 암호화한 후 저장해야 합니다. 이렇게 하면 도난 또는 누출 상황을 악용하는 공격자와 권한이 충분하지 않은 사용자가 모두 무단으로 접근하지 못하게 됩니다.

예제 1: 다음 코드에서는 암호화되지 않은 PEM 형식을 사용하여 RSA 개인 키를 내보냅니다.


from Crypto.PublicKey import RSA

key = RSA.generate(2048)
f = open('mykey.pem','w')
f.write(key.exportKey(format='PEM'))
f.close()
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 311
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000201, CCI-002450
[3] Standards Mapping - FIPS200 IA
[4] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[7] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 8.1.6 General Data Protection (L3)
[8] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[9] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[10] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[11] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[12] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[13] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[14] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[27] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[28] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 311
[29] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 311
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001820 CAT I, APSC-DV-002010 CAT II, APSC-DV-003100 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001820 CAT I, APSC-DV-002010 CAT II, APSC-DV-003100 CAT II
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.python.key_management_unencrypted_private_key
Abstract
암호화 또는 서명 개인 키를 일반 텍스트로 저장해서는 안 됩니다.
Explanation
암호화 또는 서명에 사용되는 개인 키는 민감한 데이터로 간주해야 하며, 강력한 암호로 암호화한 후 저장해야 합니다. 이렇게 하면 도난 또는 누출 상황을 악용하는 공격자와 권한이 충분하지 않은 사용자가 모두 무단으로 접근하지 못하게 됩니다.

예제 1: 다음 코드에서는 암호화되지 않은 PEM 형식을 사용하여 RSA 개인 키를 내보냅니다.


require 'openssl'

key = OpenSSL::PKey::RSA.new 2048
File.open('mykey.pem', 'w') do |file|
file.write(key.to_pem)
end
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 311
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000201, CCI-002450
[3] Standards Mapping - FIPS200 IA
[4] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[7] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 8.1.6 General Data Protection (L3)
[8] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[9] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[10] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[11] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[12] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[13] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[14] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[27] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259
[28] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 311
[29] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 311
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001820 CAT I, APSC-DV-002010 CAT II, APSC-DV-003100 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001820 CAT I, APSC-DV-002010 CAT II, APSC-DV-003100 CAT II
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
desc.structural.ruby.key_management_unencrypted_private_key
Abstract
Kubernetes 구성 요소가 시스템 정보를 누출합니다.
Explanation
프로파일링이 활성화된 경우 구성 요소는 웹 인터페이스를 통해 성능 메트릭을 제공합니다. 성능 메트릭은 공격자가 공격을 계획하는 데 도움이 되는 시스템 데이터를 노출합니다. 구성 요소를 시작하는 명령에 --profiling 플래그가 없거나 플래그가 true로 설정되어 있습니다.
References
[1] Kubernetes Components The Kubernetes Authors
[2] Kubernetes API Server The Kubernetes Authors
[3] Kubernetes controller manager The Kubernetes Authors
[4] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.17
[5] Standards Mapping - Common Weakness Enumeration CWE ID 215, CWE ID 489, CWE ID 497
[6] Standards Mapping - Common Weakness Enumeration Top 25 2019 [4] CWE ID 200
[7] Standards Mapping - Common Weakness Enumeration Top 25 2020 [7] CWE ID 200
[8] Standards Mapping - Common Weakness Enumeration Top 25 2021 [20] CWE ID 200
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [17] CWE ID 200
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-002420
[11] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1), SC-8 Transmission Confidentiality and Integrity (P1), SI-11 Error Handling (P2)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement, SC-8 Transmission Confidentiality and Integrity, SI-11 Error Handling
[14] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 8.3.4 Sensitive Private Data (L1 L2 L3), 14.3.2 Unintended Security Disclosure Requirements (L1 L2 L3), 14.3.3 Unintended Security Disclosure Requirements (L1 L2 L3), 14.2.2 Dependency (L1 L2 L3)
[16] Standards Mapping - OWASP Mobile 2014 M2 Insecure Data Storage
[17] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[18] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[19] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.6
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.5
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.5
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.5
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.5
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.6 - Sensitive Data Retention
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.6 - Sensitive Data Retention
[31] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3620 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3620 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3620 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3620 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3620 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3620 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3620 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[53] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[54] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.yaml.kubernetes_misconfiguration_api_server_profiling.base
Abstract
이 Kubelet 구성은 Kubelet이 iptable을 구성하는 것을 방지합니다.
Explanation
기본적으로 Kubelets는 Pod 구성의 네트워킹 옵션을 기반으로 iptables에 대해 필요한 변경을 수행합니다. Kubelet 구성에서 makeIPTablesUtilChainsenabled:false로 설정하면 Kubelet이 컨테이너와 나머지 요소 간의 네트워크 트래픽을 관리하는 것을 방지할 수 있습니다. 그러면 Kubelet이 필요한 네트워크 보안 요구 사항을 적용하지 못하고 컨테이너에서 요청한 연결을 설정하지 못하게 됩니다.

예제 1: 다음 Kubelet 구성은 makeIPTablesUtilChains: false.설정으로 인해 Kubelet이 iptables에 대해 필요한 변경을 수행하는 것을 방지합니다.

apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
makeIPTablesUtilChains: false
References
[1] Set Kubelet parameters via a config file The Kubernetes Authors
[2] Kubelet The Kubernetes Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 4.2.6
[4] Standards Mapping - Common Weakness Enumeration CWE ID 284
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-002165
[6] Standards Mapping - FIPS200 CM
[7] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), CM-6 Configuration Settings (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, CM-6 Configuration Settings
[10] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.4.3 Access Control Architectural Requirements (L2 L3)
[12] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[13] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[14] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[16] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[17] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3500 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3500 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3500 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3500 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3500 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3500 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3500 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authentication (WASC-01)
[53] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.kubernetes_misconfiguration_automated_iptables_management_disabled.base
Abstract
Kubernetes 구성 요소가 시스템 정보를 누출합니다.
Explanation
프로파일링이 활성화된 경우 구성 요소는 웹 인터페이스를 통해 성능 메트릭을 제공합니다. 성능 메트릭은 공격자가 공격을 계획하는 데 도움이 되는 시스템 데이터를 노출합니다. 구성 요소를 시작하는 명령에 --profiling 플래그가 없거나 플래그가 true로 설정되어 있습니다.
References
[1] Kubernetes Components The Kubernetes Authors
[2] Kubernetes API Server The Kubernetes Authors
[3] Kubernetes controller manager The Kubernetes Authors
[4] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.3.2
[5] Standards Mapping - Common Weakness Enumeration CWE ID 215, CWE ID 489, CWE ID 497
[6] Standards Mapping - Common Weakness Enumeration Top 25 2019 [4] CWE ID 200
[7] Standards Mapping - Common Weakness Enumeration Top 25 2020 [7] CWE ID 200
[8] Standards Mapping - Common Weakness Enumeration Top 25 2021 [20] CWE ID 200
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [17] CWE ID 200
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-002420
[11] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1), SC-8 Transmission Confidentiality and Integrity (P1), SI-11 Error Handling (P2)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement, SC-8 Transmission Confidentiality and Integrity, SI-11 Error Handling
[14] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 8.3.4 Sensitive Private Data (L1 L2 L3), 14.3.2 Unintended Security Disclosure Requirements (L1 L2 L3), 14.3.3 Unintended Security Disclosure Requirements (L1 L2 L3), 14.2.2 Dependency (L1 L2 L3)
[16] Standards Mapping - OWASP Mobile 2014 M2 Insecure Data Storage
[17] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[18] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[19] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.6
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.5
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.5
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.5
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.5
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.6 - Sensitive Data Retention
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.6 - Sensitive Data Retention
[31] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3620 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3620 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3620 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3620 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3620 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3620 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3620 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[53] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[54] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.yaml.kubernetes_misconfiguration_api_server_profiling.base
Abstract
컨테이너식 응용 프로그램은 컨테이너의 호스트 파일 시스템에 쓸 수 있습니다.
Explanation
기본적으로 Kubernetes 컨테이너 런타임은 응용 프로그램이 컨테이너의 루트 파일 시스템에 쓰는 것을 차단합니다. readOnlyRootFilesystem: false 설정은 이 제한을 비활성화하여 공격자가 로컬 파일 시스템을 조작하거나 악성 실행 파일을 디스크에 쓸 수 있도록 합니다.

예제 1: 다음 매니페스트는 readOnlyRootFilesystem 필드를 false로 설정하여 컨테이너 내부의 응용 프로그램이 로컬 디스크에 데이터를 쓰는 것을 허용합니다.

...
kind: Pod
...
spec:
containers:
- name: ...
...
securityContext:
readOnlyRootFilesystem: false
...
References
[1] Pod Security Context The Kubernetes Authors
[2] Standards Mapping - Common Weakness Enumeration CWE ID 284
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [15] CWE ID 732
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [16] CWE ID 732
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [22] CWE ID 732
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-002165
[7] Standards Mapping - FIPS200 AC
[8] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement
[11] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.4.2 Access Control Architectural Requirements (L2 L3), 1.4.4 Access Control Architectural Requirements (L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[14] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[15] Standards Mapping - OWASP Top 10 2007 A10 Failure to Restrict URL Access
[16] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[17] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[18] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[19] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.10
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls
[32] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 732
[33] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 285
[34] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 732
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.2 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.2 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.2 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.kubernetes_misconfiguration_host_write_access.base
Abstract
AlwaysPullImages 승인 컨트롤러가 Kubernetes API 서버에서 활성화되지 않았습니다.
Explanation
레지스트리에서 컨테이너 이미지를 풀링하려면 일반적으로 권한 부여가 필요합니다. 그러나 Kubernetes 노드는 이전에 시작된 컨테이너의 모든 이미지를 캐시합니다. 공격자는 캐시된 이미지로 컨테이너를 시작하여 필요한 권한 부여를 우회할 수 있습니다. AlwaysPullImages 승인 컨트롤러는 이 우회를 방지할 수 있습니다.

예제 1: 다음 구성은 --enable-admission-plugins 플래그에 AlwaysPullImages 승인 컨트롤러 없이 Kubernetes API 서버를 시작합니다.

...
kind: Pod
...
spec:
containers:
- command:
- kube-apiserver
...
- --enable-admission-plugins=PodNodeSelector,LimitRanger
...
References
[1] Kubernetes API Server The Kubernetes Authors
[2] Using Admission Controllers The Kubernetes Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.11
[4] Standards Mapping - Common Weakness Enumeration CWE ID 264
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [25] CWE ID 862
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-002165
[8] Standards Mapping - FIPS200 CM, SC
[9] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement
[12] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.4.2 Access Control Architectural Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[15] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[16] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[17] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[18] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[19] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[20] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2, Requirement 6.5.10
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls
[33] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 285
[34] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 863
[35] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 863
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.kubernetes_misconfiguration_image_authorization_bypass
Abstract
Kubernetes API 서버가 승인 컨트롤러로 구성되지 않았습니다.
Explanation
승인 컨트롤러는 Kubernetes API 서버에 대한 요청을 검증하고 사용자 지정합니다. 권한이 부여되지 않은 특권 요청을 거부하고, 네임스페이스 격리를 적용하며, 과도한 리소스 요청을 제한하는 등의 보안 제어를 구현할 수 있습니다. 이 API 서버는 승인 컨트롤러가 없거나 더 이상 사용되지 않는 AlwaysAdmit 승인 컨트롤러가 활성화되었기 때문에 요청을 검증하지 않습니다.

예제 1: 다음 구성은 AlwaysAdmit 승인 컨트롤러를 사용하여 Kubernetes API 서버를 시작합니다.

...
kind: Pod
...
spec:
containers:
- command:
- kube-apiserver
...
- --enable-admission-plugins=AlwaysAdmit,PodSecurityPolicy
...
References
[1] Kubernetes API Server The Kubernetes Authors
[2] Using Admission Controllers The Kubernetes Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.10
[4] Standards Mapping - Common Weakness Enumeration CWE ID 1188
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-003109
[6] Standards Mapping - FIPS200 CM
[7] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-6 Configuration Settings (P1), SA-4 Acquisition Process (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-6 Configuration Settings, SA-4 Acquisition Process
[10] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[11] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[12] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[13] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[14] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[16] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.5.3, Requirement 6.5.4, Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.5.3, Requirement 6.5.4, Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 2.3 - Secure Defaults
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 2.3 - Secure Defaults
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 2.3 - Secure Defaults
[27] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3370 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3370 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3370 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3370 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3370 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-003270 CAT II, APSC-DV-003280 CAT I
[47] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15), Server Misconfiguration (WASC-14)
desc.structural.yaml.kubernetes_misconfiguration_improper_admission_controller_access_control
Abstract
etcd 인스턴스가 모든 수신 HTTPS 요청에서 신뢰할 수 있는 인증 기관에서 서명한 클라이언트 인증서를 확인하지 않습니다.
Explanation
Kubernetes는 민감한 데이터를 etcd 클러스터에 보관합니다. etcd를 시작하는 명령에서 --client-cert-auth 플래그가 false로 설정되어 있기 때문에 etcd 인스턴스는 신뢰할 수 있는 인증 기관에서 서명한 인증서가 없는 클라이언트의 연결을 수락합니다.

예제 1: 다음 구성은 etcd 인스턴스를 시작하고 --client-cert-auth 플래그를 false로 설정합니다.

...
spec:
containers:
- command:
...
- etcd
...
--client-cert-auth=false
...
References
[1] Operating etcd clusters for Kubernetes The Kubernetes Authors
[2] etcd Configuration flags etcd Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 2.2
[4] Standards Mapping - Common Weakness Enumeration CWE ID 297
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000166, CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[11] Standards Mapping - FIPS200 CM, SC
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[15] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[17] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[18] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[19] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[20] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A07 Identification and Authentication Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.yaml.kubernetes_misconfiguration_inadequate_certificate_verification.base
Abstract
더 이상 사용되지 않는 플래그가 Kubernetes API 서버와 Kubelet 간의 보안 통신을 비활성화합니다.
Explanation
Kubernetes API 서버에서 Kubelet으로의 연결은 종종 기밀 및 명령과 같은 민감한 데이터를 전달합니다. 기본적으로 API 서버와 Kubelet 간의 연결은 TLS(전송 계층 보안)을 통해 전송 중 보호됩니다. --kubelet-https 플래그가 false로 설정되어 있으면 보안 통신이 비활성화됩니다.

예제 1: 다음 구성은 API 서버가 --kubelet-https 플래그가 false로 설정되어 시작되기 때문에 API 서버와 Kubelets 간의 보안 통신을 비활성화합니다.

...
spec:
containers:
- command:
- kube-apiserver
- --kublet-https=false
- --authorization-mode=RBAC
image: example.domain/kube-apiserver-amd64:v1.6.0
...
References
[1] Standards Mapping - CIS Kubernetes Benchmark Recommendation 4.2.7, Recommendation 4.2.10, Recommendation 4.2.11
[2] Standards Mapping - Common Weakness Enumeration CWE ID 319
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [4] CWE ID 200
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [7] CWE ID 200
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [20] CWE ID 200
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000068, CCI-001453, CCI-002418, CCI-002420, CCI-002421, CCI-002422, CCI-002890, CCI-003123
[7] Standards Mapping - FIPS200 CM, SC
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-17 Remote Access (P1), MA-4 Nonlocal Maintenance (P2), SC-8 Transmission Confidentiality and Integrity (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-17 Remote Access, MA-4 Nonlocal Maintenance, SC-8 Transmission Confidentiality and Integrity
[11] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.9.1 Communications Architectural Requirements (L2 L3), 2.2.5 General Authenticator Requirements (L3), 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 8.3.1 Sensitive Private Data (L1 L2 L3), 8.1.6 General Data Protection (L3), 9.1.1 Communications Security Requirements (L1 L2 L3), 9.2.2 Server Communications Security Requirements (L2 L3), 14.4.5 HTTP Security Headers Requirements (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[14] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[15] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[16] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7 - Use of Cryptography, Control Objective B.2.5 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7 - Use of Cryptography, Control Objective B.2.5 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[32] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 319
[33] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 311
[34] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[57] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.yaml.kubernetes_misconfiguration_insecure_kubelet_transport.base
Abstract
감사 로그의 보관 기간이 너무 짧습니다.
Explanation
로그 파일은 사고 후 분석 및 위협 탐지를 용이하게 하고 규정 준수 요구 사항을 충족할 수 있을 만큼 충분히 오래 보관되어야 합니다. --audit-log-maxage 플래그는 오래된 감사 로그 파일을 보관할 최대 일수를 정의합니다. Kubernetes API 서버를 시작하는 명령에 플래그가 없거나 보존 기간이 30일 미만으로 설정되어 있습니다.

예제 1: 다음 명령은 Kubernetes API 서버를 시작하고 --audit-log-maxage 플래그를 2(2일)로 설정하지만 이는 너무 짧습니다.

...
kind: Pod
...
spec:
containers:
- command:
- kube-apiserver
...
- --audit-log-maxage=2
...
References
[1] Kubernetes API Server The Kubernetes Authors
[2] Audit Policy The Kubernetes Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.19
[4] Standards Mapping - Common Weakness Enumeration CWE ID 778
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000172
[6] Standards Mapping - FIPS200 CM
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-12 Audit Generation (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-12 Audit Record Generation
[10] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 7.1.3 Log Content Requirements (L2 L3), 7.1.4 Log Content Requirements (L2 L3), 7.2.1 Log Processing Requirements (L2 L3), 7.2.2 Log Processing Requirements (L2 L3)
[12] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[13] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[14] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[16] Standards Mapping - OWASP Top 10 2017 A10 Insufficient Logging and Monitoring
[17] Standards Mapping - OWASP Top 10 2021 A09 Security Logging and Monitoring Failures
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10, Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 10.2.1, Requirement 10.2.1.4, Requirement 10.2.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 10.2.1, Requirement 10.2.1.4, Requirement 10.2.2
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 8.2 - Activity Tracking
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 8.2 - Activity Tracking
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 8.2 - Activity Tracking
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3680.4 CAT II, APP3680.5 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3680.4 CAT II, APP3680.5 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3680.4 CAT II, APP3680.5 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3680.4 CAT II, APP3680.5 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3680.4 CAT II, APP3680.5 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3680.4 CAT II, APP3680.5 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3680.4 CAT II, APP3680.5 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000830 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000830 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000830 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000830 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000830 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000830 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000830 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000830 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000830 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000830 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000830 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000830 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000830 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000830 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000830 CAT II
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)
desc.structural.yaml.kubernetes_misconfiguration_insufficient_api_server_log_retention.base
Abstract
보존되는 감사 로그의 수가 충분하지 않습니다.
Explanation
Kubernetes API 서버는 자동으로 로그 파일을 순환시킵니다. 사후 분석 및 위협 탐지를 용이하게 하고 규정 준수 요구 사항을 충족하려면 충분한 양의 로그 데이터를 유지해야 합니다. --audit-log-maxbackup 플래그는 보존할 최대 로그 파일 수를 정의합니다. Kubernetes API 서버를 시작하는 명령에 이 플래그가 없거나 로그 파일의 최대 수가 10 미만입니다.

예제 1: 다음 명령은 Kubernetes API 서버를 시작하고 --audit-log-maxbackup 플래그를 2로 설정합니다. 이는 단 2개의 로그 파일만 보존하므로 충분하지 않습니다.

...
kind: Pod
...
spec:
containers:
- command:
- kube-apiserver
...
- --audit-log-maxbackup=2
...
References
[1] Kubernetes API Server The Kubernetes Authors
[2] Audit Policy The Kubernetes Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.20
[4] Standards Mapping - Common Weakness Enumeration CWE ID 778
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000172
[6] Standards Mapping - FIPS200 CM
[7] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-12 Audit Generation (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-12 Audit Record Generation
[10] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 7.1.3 Log Content Requirements (L2 L3), 7.1.4 Log Content Requirements (L2 L3), 7.2.1 Log Processing Requirements (L2 L3), 7.2.2 Log Processing Requirements (L2 L3)
[12] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[13] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[14] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[16] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration, A10 Insufficient Logging and Monitoring
[17] Standards Mapping - OWASP Top 10 2021 A09 Security Logging and Monitoring Failures
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10, Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 10.2.1, Requirement 10.2.1.4, Requirement 10.2.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 10.2.1, Requirement 10.2.1.4, Requirement 10.2.2
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 8.2 - Activity Tracking
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 8.2 - Activity Tracking
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 8.2 - Activity Tracking
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3680.4 CAT II, APP3680.5 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3680.4 CAT II, APP3680.5 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3680.4 CAT II, APP3680.5 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3680.4 CAT II, APP3680.5 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3680.4 CAT II, APP3680.5 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3680.4 CAT II, APP3680.5 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3680.4 CAT II, APP3680.5 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000830 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000830 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000830 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000830 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000830 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000830 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000830 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000830 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000830 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000830 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000830 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000830 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000830 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000830 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000830 CAT II
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)
desc.structural.yaml.kubernetes_misconfiguration_insufficient_cloud_log_rotation.base
Abstract
감사 로그 파일의 최대 크기가 너무 작습니다.
Explanation
Kubernetes API 서버는 자동으로 로그 파일을 순환시킵니다. 사후 분석 및 위협 탐지를 용이하게 하고 규정 준수 요구 사항을 충족하려면 충분한 양의 로그 데이터를 유지해야 합니다. --audit-log-maxsize 플래그는 자동으로 순환되기 전에 감사 로그 파일의 최대 크기를 메가바이트(MB) 단위로 설정합니다. Kubernetes API 서버를 시작하는 명령에 이 플래그가 없거나 감사 로그 파일의 최대 크기가 100MB 미만으로 설정되어 있습니다.

예제 1: 다음 명령은 Kubernetes API 서버를 시작하고 --audit-log-maxsize 플래그를 2(메가바이트)로 설정하지만 이걸로는 충분하지 않습니다.

...
kind: Pod
...
spec:
containers:
- command:
- kube-apiserver
...
- ----audit-log-maxsize=2
...
References
[1] Kubernetes API Server The Kubernetes Authors
[2] Audit Policy The Kubernetes Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.21
[4] Standards Mapping - Common Weakness Enumeration CWE ID 778
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000172
[6] Standards Mapping - FIPS200 CM
[7] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-12 Audit Generation (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-12 Audit Record Generation
[10] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 7.1.3 Log Content Requirements (L2 L3), 7.1.4 Log Content Requirements (L2 L3), 7.2.1 Log Processing Requirements (L2 L3), 7.2.2 Log Processing Requirements (L2 L3)
[12] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[13] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[14] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[16] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration, A10 Insufficient Logging and Monitoring
[17] Standards Mapping - OWASP Top 10 2021 A09 Security Logging and Monitoring Failures
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10, Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 10.2.1, Requirement 10.2.4, Requirement 10.3.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 10.2.1, Requirement 10.2.1.4, Requirement 10.2.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 10.2.1, Requirement 10.2.1.4, Requirement 10.2.2
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 8.2 - Activity Tracking
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 8.2 - Activity Tracking
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 8.2 - Activity Tracking
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3680.4 CAT II, APP3680.5 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3680.4 CAT II, APP3680.5 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3680.4 CAT II, APP3680.5 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3680.4 CAT II, APP3680.5 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3680.4 CAT II, APP3680.5 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3680.4 CAT II, APP3680.5 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3680.4 CAT II, APP3680.5 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000830 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000830 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000830 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000830 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000830 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000830 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000830 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000830 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000830 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000830 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000830 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000830 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000830 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000830 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000830 CAT II
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)
desc.structural.yaml.kubernetes_misconfiguration_insufficient_cloud_log_size.base
Abstract
이 Kubelet 구성은 Kubelet이 커널 기본값을 재정의하는 것을 허용합니다.
Explanation
ProtectKernelDefaults 설정을 설정하지 않은 상태로 두거나 false로 설정하면 Kubelet이 런타임에 커널 매개 변수를 수정할 수 있습니다. Kubernetes 배포 전에 커널 매개 변수를 최적화하고 강화해야 합니다. Kubelet에 커널 매개 변수를 변경할 수 있는 권한을 부여하면 호스트 운영 체제의 공격 표면이 확장됩니다.

예제 1: 다음 Kubelet 구성은 ProtectKernelDefaults: false 설정으로 인해 Kubelet이 커널 매개 변수를 구성하는 것을 허용합니다.

apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
ProtectKernelDefaults: false
References
[1] Set Kubelet parameters via a config file The Kubernetes Authors
[2] Kubelet The Kubernetes Authors
[3] Standards Mapping - Common Weakness Enumeration CWE ID 250
[4] Standards Mapping - Common Weakness Enumeration Top 25 2024 [15] CWE ID 269
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000381, CCI-002233, CCI-002235
[6] Standards Mapping - FIPS200 AC
[7] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-6 Least Privilege (P1), CM-7 Least Functionality (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-6 Least Privilege, CM-7 Least Functionality
[10] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 10.2.2 Malicious Code Search (L2 L3)
[12] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[13] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[14] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[16] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[17] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 7.1.1
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 7.1.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 7.1.2
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 7.1.2
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 7.1.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 7.1.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 7.2.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 7.2.2
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls
[30] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 285
[31] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 285
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3500 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3500 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3500 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3500 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3500 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3500 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3500 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[54] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[55] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.kubernetes_misconfiguration_kernel_defaults_overridden.base