계: Security Features

소프트웨어 보안은 보안 소프트웨어가 아닙니다. 여기서는 인증, 액세스 제어, 기밀성, 암호화, 권한 관리 등의 항목에 대해 설명합니다.

Kubernetes Misconfiguration: Missing SecurityContextDeny Admission Controller

YAML

Abstract

Kubernetes API 서버를 시작하는 이 명령은 SecurityContextDeny 승인 컨트롤러를 활성화하지 않습니다.

Explanation

SecurityContextDeny 승인 컨트롤러는 Pod가 Kubernetes 클러스터에서 권한 에스컬레이션을 허용하는 특정 SecurityContext 필드를 설정하는 것을 방지합니다. 적절한 Pod 보안 정책과 같은 Kubernetes에 대한 대체 정책 적용 도구가 없으면 SecurityContextDeny 승인 컨트롤러를 활성화해야 합니다.

예제 1: 다음 Pod 정의는 SecurityContextDeny 승인 컨트롤러를 활성화하지 않고 Kubernetes API 서버를 시작합니다.


apiVersion: v1
kind: Pod
...
spec:
  containers:
  - command:
    - kube-apiserver
    ...
    - --enable-admission-plugins=NodeRestriction
    ...

References

[1] Kubernetes API Server The Kubernetes Authors

[2] Using Admission Controllers The Kubernetes Authors

[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.12

[4] Standards Mapping - Common Weakness Enumeration CWE ID 250

[5] Standards Mapping - Common Weakness Enumeration Top 25 2024 [15] CWE ID 269

[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084

[7] Standards Mapping - FIPS200 CM

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

[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), AC-6 Least Privilege (P1), SC-3 Security Function Isolation (P1)

[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, AC-6 Least Privilege, SC-3 Security Function Isolation

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

[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.1.3 Input Validation Requirements (L1 L2 L3), 5.1.4 Input Validation Requirements (L1 L2 L3)

[13] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls

[14] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management

[15] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration

[16] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[17] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

[18] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.6

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6

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

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4

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

[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection

[29] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 250

[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3500 CAT II

[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3500 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3500 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3500 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3500 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3500 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3500 CAT II

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[52] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)

desc.structural.yaml.kubernetes_misconfiguration_missing_securitycontextdeny_admission_controller.base