계: Security Features

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

Password Management: Weak Cryptography

Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 속성 파일에서 비밀번호를 읽고 이 비밀번호를 사용하여 URL 요청에 기본 authentication 자격 증명을 설정합니다.


...
var fs:FileStream = new FileStream();
fs.open(new File("config.properties"), FileMode.READ);
var decoder:Base64Decoder = new Base64Decoder();
decoder.decode(fs.readMultiByte(fs.bytesAvailable, File.systemCharset));
var password:String = decoder.toByteArray().toString();

URLRequestDefaults.setLoginCredentialsForHost(hostname, usr, password);
...


이 코드는 올바로 실행되지만 config.properties에 액세스할 수 있는 모든 사용자는 password 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.actionscript.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 구성 파일 또는 기타 데이터 저장소에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 레지스트리에서 비밀번호를 읽고 해당 비밀번호를 사용하여 새 네트워크 자격 증명을 생성합니다.


...
string value = regKey.GetValue(passKey).ToString());
byte[] decVal = Convert.FromBase64String(value);
NetworkCredential netCred =
new NetworkCredential(username,decVal.toString(),domain);
...


이 코드는 바르게 실행되지만 암호를 저장하는 데 사용되는 레지스트리 키에 대한 액세스 권한이 있는 사용자면 누구나 password의 값을 읽을 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Scott Mitchell Protecting Connection Strings and Other Configuration Information Microsoft
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.dotnet.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 구성 파일 또는 기타 데이터 저장소에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 레지스트리에서 비밀번호를 읽어 안전하지 못한 인코딩 알고리즘을 사용하는 코드를 디코딩하고 이 비밀번호를 사용하여 데이터베이스에 연결합니다.


...
RegQueryValueEx(hkey, TEXT(.SQLPWD.), NULL,
NULL, (LPBYTE)password64, &size64);
Base64Decode(password64, size64, (BYTE*)password, &size);
rc = SQLConnect(*hdbc, server, SQL_NTS, uid,
SQL_NTS, password, SQL_NTS);
...


이 코드는 성공적으로 실행되지만 암호 저장에 사용된 레지스트리 키에 액세스할 수 있는 모든 사용자는 password64 값을 읽고 값이 base64로 인코딩되었다는 것을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Windows Data Protection Microsoft
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.cpp.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 속성 파일에서 암호를 읽고 이 암호를 사용하여 데이터베이스에 연결합니다.


...
01 RECORDX.
05 UID PIC X(10).
05 PASSWORD PIC X(10).
05 LEN PIC S9(4) COMP.
...
EXEC CICS
READ
FILE('CFG')
INTO(RECORDX)
RIDFLD(ACCTNO)
...
END-EXEC.

CALL "g_base64_decode_inplace" using
BY REFERENCE PASSWORD
BY REFERENCE LEN
ON EXCEPTION
DISPLAY "Requires GLib library" END-DISPLAY
END-CALL.

EXEC SQL
CONNECT :UID
IDENTIFIED BY :PASSWORD
END-EXEC.
...


이 코드는 올바로 실행되지만 CFG에 액세스할 수 있는 모든 사용자는 암호 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.cobol.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
암호 관리 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 암호 관리 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 JSON 파일에서 암호를 읽고 이 암호를 사용하여 요청의 권한 부여 헤더를 설정합니다.


...
file, _ := os.Open("config.json")
decoder := json.NewDecoder(file)
decoder.Decode(&values)
password := base64.StdEncoding.DecodeString(values.Password)

request.SetBasicAuth(values.Username, password)
...


이 코드는 올바로 실행되지만 config.json에 액세스할 수 있는 모든 사용자는 password의 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.golang.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 속성 파일에서 암호를 읽어 이 암호를 사용하여 데이터베이스에 연결합니다.


...
Properties prop = new Properties();
prop.load(new FileInputStream("config.properties"));
String password = Base64.decode(prop.getProperty("password"));

DriverManager.getConnection(url, usr, password);
...


이 코드는 올바로 실행되지만 config.properties에 액세스할 수 있는 모든 사용자는 password 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.

모바일 환경에서는 장치 분실 위험이 높기 때문에 암호 관리가 특히 중요합니다.
예제 2: 다음 코드는 Android WebView 저장소에서 사용자 이름과 암호를 읽은 다음 보호된 페이지를 보기 위한 인증을 설정하는 데 사용합니다.

...
webview.setWebViewClient(new WebViewClient() {
public void onReceivedHttpAuthRequest(WebView view,
HttpAuthHandler handler, String host, String realm) {
String[] credentials = view.getHttpAuthUsernamePassword(host, realm);
String username = new String(Base64.decode(credentials[0], DEFAULT));
String password = new String(Base64.decode(credentials[1], DEFAULT));
handler.proceed(username, password);
}
});
...


WebView 자격 증명은 기본적으로 일반 텍스트로 저장되고 해시되지 않습니다. 따라서 사용자가 루팅된 장치나 에뮬레이터를 사용하는 경우 지정된 사이트에 저장된 암호를 읽을 수 있습니다.
References
[1] SQLCipher.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.java.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 하드코드된 비밀번호를 사용하여 응용 프로그램에 연결하고 주소록 항목을 검색합니다.


...
obj = new XMLHttpRequest();
obj.open('GET','/fetchusers.jsp?id='+form.id.value,'true','scott','tiger');
...


이 코드는 성공적으로 실행되지만 코드를 포함하는 웹 페이지에 액세스하는 사람은 누구나 암호를 볼 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.javascript.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 plist 파일에서 암호를 읽고, 암호로 보호되는 파일의 압축을 풀 때 이 암호를 사용합니다.

...
NSDictionary *dict= [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Config" ofType:@"plist"]];
NSString *encoded_password = [dict valueForKey:@"encoded_password"];
NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:encoded_password options:0];
NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];
[SSZipArchive unzipFileAtPath:zipPath toDestination:destPath overwrite:TRUE password:decodedString error:&error];
...


이 코드는 올바로 실행되지만 Config.plist 파일에 액세스할 수 있는 모든 사용자는 encoded_password의 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다.

모바일 환경에서는 장치 분실 위험이 높기 때문에 암호 관리가 특히 중요합니다.
References
[1] SQLCipher.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.objc.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 속성 파일에서 암호를 읽고 이 암호를 사용하여 데이터베이스에 연결합니다.


...
$props = file('config.properties', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$password = base64_decode($props[0]);

$link = mysql_connect($url, $usr, $password);
if (!$link) {
die('Could not connect: ' . mysql_error());
}
...


이 코드는 올바로 실행되지만 config.properties에 액세스할 수 있는 모든 사용자는 password 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.php.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 속성 파일에서 암호를 읽고 이 암호를 사용하여 데이터베이스에 연결합니다.


...
props = os.open('config.properties')
password = base64.b64decode(props[0])

link = MySQLdb.connect (host = "localhost",
user = "testuser",
passwd = password,
db = "test")
...


이 코드는 올바로 실행되지만 config.properties에 액세스할 수 있는 모든 사용자는 password 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.python.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 구성 파일 또는 기타 데이터 저장소에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 환경 변수에서 비밀번호를 읽어 안전하지 못한 인코딩 알고리즘으로 비밀번호를 디코딩하고 이 비밀번호를 사용하여 데이터베이스에 연결합니다.


require 'pg'
require 'base64'
...
passwd = Base64.decode64(ENV['PASSWD64'])
...
conn = PG::Connection.new(:dbname => "myApp_production", :user => username, :password => passwd, :sslmode => 'require')



이 코드는 성공적으로 실행되지만 암호를 저장하는 데 사용되는 환경 변수에 액세스할 수 있는 모든 사용자는 PASSWD64의 값을 읽고 해당 값이 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.ruby.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
암호 관리 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 암호 관리 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 속성 파일에서 암호를 읽고 이 암호를 사용하여 데이터베이스에 연결합니다.


...
val prop = new Properties();
prop.load(new FileInputStream("config.properties"));
val password = Base64.decode(prop.getProperty("password"));

DriverManager.getConnection(url, usr, password);
...


이 코드는 올바로 실행되지만 config.properties에 액세스할 수 있는 모든 사용자는 password의 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 접근 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.scala.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 plist 파일에서 암호를 읽고, 암호로 보호되는 파일의 압축을 풀 때 이 암호를 사용합니다.

...
var myDict: NSDictionary?
if let path = NSBundle.mainBundle().pathForResource("Config", ofType: "plist") {
myDict = NSDictionary(contentsOfFile: path)
}
if let dict = myDict {
let password = base64decode(dict["encoded_password"])
zipArchive.unzipOpenFile(zipPath, password:password])
}
...


이 코드는 올바로 실행되지만 Config.plist 파일에 액세스할 수 있는 모든 사용자는 encoded_password의 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다.

모바일 환경에서는 장치 분실 위험이 높기 때문에 암호 관리가 특히 중요합니다.
References
[1] SQLCipher.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.swift.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
암호 관리 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 암호 관리 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.

예제 1: 다음 Linux 섀도 파일에는 약한 암호화 알고리즘 DES를 사용하는 암호가 포함되어 있습니다.


...
root:qFio7llfVKk.s:19033:0:99999:7:::
...


DES 알고리즘은 약한 것으로 판명되었으며 며칠 만에 무차별 대입 공격을 받을 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.regex.universal.password_management_weak_cryptography
Abstract
암호를 안전하지 못한 인코딩으로 감추는 것으로는 암호를 보호할 수 없습니다.
Explanation
Password Management 이슈는 암호를 응용 프로그램의 속성 또는 구성 파일에 일반 텍스트로 저장할 때 발생합니다. 프로그래머는 base64 인코딩과 같은 인코딩 함수로 암호를 숨겨 Password Management 문제를 해결하려고 하지만 이런 노력으로는 암호를 제대로 보호할 수 없습니다.
예제 1: 다음 코드는 속성 파일에서 암호를 읽고 이 암호를 사용하여 데이터베이스에 연결합니다.


...
...
Private Declare Function GetPrivateProfileString _
Lib "kernel32" Alias "GetPrivateProfileStringA" _
(ByVal lpApplicationName As String, _
ByVal lpKeyName As Any, ByVal lpDefault As String, _
ByVal lpReturnedString As String, ByVal nSize As Long, _
ByVal lpFileName As String) As Long
...
Dim password As String
...
password = StrConv(DecodeBase64(GetPrivateProfileString("MyApp", "Password", _
"", value, Len(value), _
App.Path & "\" & "Config.ini")), vbUnicode)
...
con.ConnectionString = "Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=scott;Passwd=" & password &";"
...



이 코드는 올바로 실행되지만 Config.ini에 액세스할 수 있는 모든 사용자는 Password 값을 읽고 base64로 인코딩된 값임을 쉽게 알 수 있습니다. 비양심적인 직원이 이 정보에 대한 액세스 권한을 갖게 되면 이를 사용하여 시스템에 침입할 수 있습니다.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[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-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, 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), 2.8.3 Single or Multi Factor One Time Verifier Requirements (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), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 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-1
[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 3.3.2, Requirement 3.3.3, Requirement 3.5.1, 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 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.vb.password_management_weak_cryptography