계: Environment

이 섹션에는 소스 코드 외부에 있지만 제작 중인 제품의 보안에는 여전히 중요한 내용이 모두 포함되어 있습니다. 이 섹션에서 다루는 문제들은 소스 코드와 직접적으로 관련이 없기 때문에 나머지 섹션과 분리했습니다.

System Information Leak: PHP Version

Abstract

상세한 시스템 정보가 노출되면 공격자가 시스템을 파악하고 공격 계획을 세우는 것이 수월해집니다.

Explanation

expose_php 옵션을 활성화하면 PHP 인터프리터에 의해 생성된 모든 응답이 호스트 시스템에 설치된 PHP 버전을 포함합니다. 원격 서버에서 실행 중인 PHP 버전을 갖춘 공격자는 시스템에 대해 알려진 익스플로이트를 열거하여 공격을 성공시키는 데 드는 비용을 크게 낮출 수 있습니다.

References

[1] M. Achour et al. PHP Manual

[2] Standards Mapping - Common Weakness Enumeration CWE ID 497

[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [4] CWE ID 200

[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [7] CWE ID 200

[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [20] CWE ID 200

[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [17] CWE ID 200

[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-002420

[8] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data

[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1), SC-8 Transmission Confidentiality and Integrity (P1), SI-11 Error Handling (P2)

[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement, SC-8 Transmission Confidentiality and Integrity, SI-11 Error Handling

[11] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration

[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 8.3.4 Sensitive Private Data (L1 L2 L3), 14.3.3 Unintended Security Disclosure Requirements (L1 L2 L3)

[13] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls

[14] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management

[15] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling

[16] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration

[17] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[18] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

[19] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.6

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5

[23] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention

[24] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.6 - Sensitive Data Retention

[25] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.6 - Sensitive Data Retention

[26] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3620 CAT II

[27] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3620 CAT II

[28] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3620 CAT II

[29] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3620 CAT II

[30] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3620 CAT II

[31] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3620 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3620 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[49] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)

[50] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage

desc.structural.php.system_information_leak_php_version