계: Security Features

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Kubernetes Misconfiguration: Host Write Access

YAML

Abstract

컨테이너식 응용 프로그램은 컨테이너의 호스트 파일 시스템에 쓸 수 있습니다.

Explanation

기본적으로 Kubernetes 컨테이너 런타임은 응용 프로그램이 컨테이너의 루트 파일 시스템에 쓰는 것을 차단합니다. readOnlyRootFilesystem: false 설정은 이 제한을 비활성화하여 공격자가 로컬 파일 시스템을 조작하거나 악성 실행 파일을 디스크에 쓸 수 있도록 합니다.

예제 1: 다음 매니페스트는 readOnlyRootFilesystem 필드를 false로 설정하여 컨테이너 내부의 응용 프로그램이 로컬 디스크에 데이터를 쓰는 것을 허용합니다.


...
kind: Pod
...
spec:
  containers:
  - name: ...
    ...
    securityContext:
    readOnlyRootFilesystem: false
    ...

References

[1] Pod Security Context The Kubernetes Authors

[2] Standards Mapping - Common Weakness Enumeration CWE ID 284

[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [15] CWE ID 732

[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [16] CWE ID 732

[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [22] CWE ID 732

[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-002165

[7] Standards Mapping - FIPS200 AC

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

[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)

[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement

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

[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.4.2 Access Control Architectural Requirements (L2 L3), 1.4.4 Access Control Architectural Requirements (L2 L3)

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

[14] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control

[15] Standards Mapping - OWASP Top 10 2007 A10 Failure to Restrict URL Access

[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 6.5.2

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.10

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8

[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 Data Security Standard Version 4.0.1 Requirement 6.2.4

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

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

[31] 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

[32] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 732

[33] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 285

[34] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 732

[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.2 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.2 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.2 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.2 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.2 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.2 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.2 CAT II

[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 - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)

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

desc.structural.yaml.kubernetes_misconfiguration_host_write_access.base