界: Environment
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WebSphere Misconfiguration: Servlets Served By Class Name
Abstract
アプリケーションが、WebSphere がクラス名でサーブレットに対応できるように設定されています。
Explanation
サーブレットをクラス名で対応できるようにすると、サーブレットの名前を知っている攻撃者は、アプリケーションのデプロイメント ディスクリプターにマップされていない場合でも、サーブレットを直接呼び出すことができます。
たとえば、
さらに悪いことに、サーバーのクラスローダー構造によっては、攻撃者が同じ WebSphere インスタンスでホストされている他のアプリケーションからサーブレットを呼び出すことができてしまう場合があります。
たとえば、
com.ibm.websphere.samples.MyServlet という名前のサーブレットを含むアプリケーションがあるとします。ibm-web-ext.xmi (WAS V6 以前) の serveServletsByClassnameEnabled、または ibm-web-ext.xml (WAS V7 以降) の enable-serving-servlets-by-class-name が true に設定されている場合、次を要求することでサーブレットを呼び出すことができます。http://www.example.com/SomeContextPath/servlet/com.ibm.websphere.samples.MyServlet。さらに悪いことに、サーバーのクラスローダー構造によっては、攻撃者が同じ WebSphere インスタンスでホストされている他のアプリケーションからサーブレットを呼び出すことができてしまう場合があります。
References
[1] Keys Botzum WebSphere Application Server V6 advanced security hardening -- Part 1
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-000804, CCI-002165
[3] Standards Mapping - FIPS200 CM
[4] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), IA-8 Identification and Authentication (Non-Organizational Users) (P1)
[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, IA-8 Identification and Authentication (Non-Organizational Users)
[7] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[8] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[9] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[10] Standards Mapping - OWASP Top 10 2007 A10 Failure to Restrict URL Access
[11] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[12] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[13] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[14] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10, Requirement 7.2
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.10, Requirement 7.2
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8, Requirement 7.2
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8, Requirement 7.2
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8, Requirement 7.2
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8, Requirement 7.2
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8, Requirement 7.2
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 2.2.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 2.2.6
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[26] 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
[27] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.2 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.2 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.2 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II
[50] Standards Mapping - Web Application Security Consortium Version 2.00 Server Misconfiguration (WASC-14)
desc.config.java.websphere_misconfiguration_servlets_served_by_class_name