Reino: Input Validation and Representation

Problemas de validação e representação da entrada são causados por metacaracteres, codificações alternativas e representações numéricas. Confiar na entrada resulta em problemas de segurança. Os problemas incluem: “Buffer Overflows”, ataques de “Cross-Site Scripting”, “SQL Injection”, entre outros.

Command Injection: GitHub Actions

YAML

Abstract

A referência direta de expressões específicas do GitHub Action em um script de execução do GitHub Actions deixa o sistema vulnerável à injeção de comando.

Explanation

Referências diretas a expressões do GitHub Action em um script de execução são geradas dinamicamente. Isso permite que qualquer pessoa com controle da entrada comprometa o sistema usando injeção de comando.

Exemplo 1: O código a seguir de um GitHub Action faz referência direta a uma expressão em um script de execução que deixa o sistema aberto para injeção de comando.


    ...
    steps:
      - run: echo "${{  github.event.pull_request.title  }}"
    ...

Quando a ação é executada, o script de shell é executado dinamicamente, incluindo qualquer código que o valor github.event.pull_request.title represente. Se o github.event.pull_request.title contiver código executável malicioso, a ação executará o código malicioso, o que resultará na injeção de comando.

References

[1] Security Hardening for GitHub Actions - Good Practices for Mitigating Script Injection Attacks

[2] Standards Mapping - CIS Azure Kubernetes Service Benchmark 4

[3] Standards Mapping - CIS Microsoft Azure Foundations Benchmark complete

[4] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 4

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

[6] Standards Mapping - CIS Google Kubernetes Engine Benchmark integrity

[7] Standards Mapping - CIS Kubernetes Benchmark complete

[8] Standards Mapping - Common Weakness Enumeration CWE ID 77, CWE ID 78

[9] Standards Mapping - Common Weakness Enumeration Top 25 2019 [11] CWE ID 078

[10] Standards Mapping - Common Weakness Enumeration Top 25 2020 [10] CWE ID 078

[11] Standards Mapping - Common Weakness Enumeration Top 25 2021 [5] CWE ID 078, [25] CWE ID 077

[12] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001310, CCI-002754

[13] Standards Mapping - FIPS200 SI

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

[15] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2012 Rule 1.3

[16] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C++ Guidelines 2008 Rule 0-3-1

[17] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1)

[18] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation

[19] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws

[20] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws

[21] Standards Mapping - OWASP Top 10 2010 A1 Injection

[22] Standards Mapping - OWASP Top 10 2013 A1 Injection

[23] Standards Mapping - OWASP Top 10 2017 A1 Injection

[24] Standards Mapping - OWASP Top 10 2021 A03 Injection

[25] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.2.2 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.3 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.3.8 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.2 File Execution Requirements (L1 L2 L3), 12.3.5 File Execution Requirements (L1 L2 L3)

[26] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection

[27] Standards Mapping - OWASP Mobile 2024 M2 Inadequate Supply Chain Security

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2

[30] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1

[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1

[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1

[33] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1

[34] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1

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

[36] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection

[37] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation

[38] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation, Control Objective C.3.2 - Web Software Attack Mitigation

[39] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 078

[40] Standards Mapping - SANS Top 25 2010 Insecure Interaction - CWE ID 078

[41] Standards Mapping - SANS Top 25 2011 Insecure Interaction - CWE ID 078

[42] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I

[43] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I

[44] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I

[45] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I

[46] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I

[47] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I

[48] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I

[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[50] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[51] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[52] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[53] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[54] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[55] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[56] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[57] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[58] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[59] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[60] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[61] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002510 CAT I, APSC-DV-002560 CAT I

[62] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002510 CAT I, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I

[63] Standards Mapping - Web Application Security Consortium Version 2.00 OS Commanding (WASC-31)

[64] Standards Mapping - Web Application Security Consortium 24 + 2 OS Commanding

desc.structural.yaml.command_injection_github_actions