界: Environment
このセクションには、ソース コード以外のものでも、作成中の製品のセキュリティにとって重要なものがすべて含まれています。この分野が対象とする問題は、ソース コードに直接関係しないため、この分野の他の部分と分けました。
PHP Misconfiguration: cgi.force_redirect Disabled
Abstract
Web ディレクトリ上で PHP インタプリタを呼び出すことをユーザーに許可すると、攻撃者は権限チェックを回避して、サーバー上の保護されているファイルにアクセスする可能性があります。
Explanation
PHP インタプリタが CGI バイナリとしてインストールされている場合、PHP リソースに対するリクエストは通常 Web サーバーによってこのインタプリタにリダイレクトされます。このような場合、ユーザーが http://www.example.com/content/page.php をリクエストすると、サーバーは最初に /content ディレクトリに対して必要な Access Control のチェックを実行します。次に、http://www.example.com/cgi-bin/php/content/page.php へのリクエストと共に制御を PHP インタプリタにリダイレクトします。
(デフォルトで有効に設定されている)
(デフォルトで有効に設定されている)
cgi.force_redirect が無効である場合、/cgi-bin/php へのアクセス権を持つ攻撃者は、PHP インタプリタの権限を使用して任意の Web ドキュメントにアクセスできます。そのため、サーバーで実行されるすべての Access Control チェックを回避できます。References
[1] M. Achour et al. PHP Manual
[2] Standards Mapping - Common Weakness Enumeration CWE ID 305
[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-000213, CCI-002165
[10] Standards Mapping - FIPS200 AC
[11] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement
[14] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[16] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[17] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[18] Standards Mapping - OWASP Top 10 2007 A10 Failure to Restrict URL Access
[19] Standards Mapping - OWASP Top 10 2010 A8 Failure to Restrict URL Access
[20] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[21] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[22] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2, Requirement 7.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.10, Requirement 7.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8, Requirement 7.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8, Requirement 7.2
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8, Requirement 7.2
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8, Requirement 7.2
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8, Requirement 7.2
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 7.3.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 7.3.1
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.1 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.1 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.1 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.1 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.1 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.1 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)
desc.structural.php.php_misconfiguration_cgi_force_redirect