Access Control: SecurityManager Bypass

Java/JSP

Abstract

信頼のないコードでこのメソッドを呼び出すと攻撃者による制限付きパッケージへのアクセスが可能になり、攻撃者が任意のコードを実行できるようになります。

Explanation

直接呼び出し元のクラスローダーチェックを使用してタスクを実行するJava APIは、注意して使用する必要があります。これらのAPIは、実行チェーン内のすべての呼び出し元が必要なセキュリティ権限を持っていることを確認するSecurityManagerチェックをバイパスします。直接呼び出し元のクラスローダーだけにアクセスチェックを実行すると権限昇格の問題が発生し、実行チェーン内の一部の呼び出し元が必要な権限なしでリソースにアクセスできる可能性があります。したがって、これらの API は信頼のないコードで呼び出すべきではありません。システムのセキュリティを損なう恐れがあります。

信頼のないソースから、または信頼のない環境内のJava AppletはこれらのAPIにアクセスし、悪意のあるコードを実行してシステムのセキュリティを損ないます。

References

[1] Secure Coding Guidelines for the Java Programming Language, Version 4.0

[2] CVE 2012-1682

[3] CVE 2012-4681

[4] SEC05-J. Do not use reflection to increase accessibility of classes, methods, or fields CERT

[5] ACCESS-8: Safely invoke standard APIs that bypass SecurityManager checks depending on the immediate caller's class loader Oracle

[6] ACCESS-9: Safely invoke standard APIs that perform tasks using the immediate caller's class loader instance Oracle

[7] ACCESS-10: Be aware of standard APIs that perform Java language access checks against the immediate caller Oracle

[8] ACCESS-11: Be aware java.lang.reflect.Method.invoke is ignored for checking the immediate caller Oracle

[9] Standards Mapping - CIS Azure Kubernetes Service Benchmark 3.0

[10] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 2.0

[11] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 2

[12] Standards Mapping - CIS Google Kubernetes Engine Benchmark normal

[13] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-001764, CCI-001774, CCI-002165

[14] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation

[15] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), CM-5 Access Restrictions for Change (P1), CM-7 Least Functionality (P1), IA-2 Identification and Authentication (Organizational Users) (P1), IA-11 Re-Authentication (P0), SC-3 Security Function Isolation (P1)

[16] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, CM-5 Access Restrictions for Change, CM-7 Least Functionality, IA-2 Identification and Authentication (Organizational Users), SC-3 Security Function Isolation

[17] Standards Mapping - OWASP Top 10 2013 A7 Missing Function Level Access Control

[18] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control

[19] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control

[20] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication

[21] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization

[22] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-AUTH-1

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control

[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control

[30] 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

[31] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002360 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001410 CAT II, APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-001520 CAT II, APSC-DV-001530 CAT II, APSC-DV-001540 CAT I, APSC-DV-002360 CAT II

[45] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)

[46] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization

desc.structural.java.access_control_securitymanager_bypass_applet