계: Environment

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Kubernetes Misconfiguration: API Server Anonymous Access

YAML

Abstract

Kubernetes API 서버가 익명 요청을 수락합니다.

Explanation

구성된 다른 인증 방법에 의해 요청이 거부되지 않는 경우 Kubernetes API 서버는 기본적으로 익명 요청을 수락합니다. API 서버는 클러스터의 중앙 관리 엔터티이기 때문에 공격자는 익명 요청을 사용하여 충분히 보호되지 않고 보안에 민감한 서비스 API에 액세스할 수 있습니다.

예제 1: 다음 구성은 Kubernetes API 서버를 시작하고 --anonymous-auth=true 플래그를 설정하여 익명 요청을 허용합니다.


...
spec:
  containers:
    - command:
      - kube-apiserver
...
      - --anonymous-auth=true
...

References

[1] Kubernetes API Access Control The Kubernetes Authors

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

[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [18] CWE ID 522

[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862

[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862

[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, 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), SC-3 Security Function Isolation (P1)

[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, SC-3 Security Function Isolation

[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 A4 Insecure Direct Object Reference

[16] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References

[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 6.5.4

[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 285

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

[34] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 676

[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I

[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I

[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I

[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I

[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I

[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I

[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I

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

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

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

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

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

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

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

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

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

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

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

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

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

[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 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_api_server_anonymous_access