계: Security Features

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

Kubernetes Misconfiguration: Missing ServiceAccount Admission Controller

YAML

Abstract

Kubernetes API 서버를 시작하는 이 명령은 ServiceAccount 승인 컨트롤러를 비활성화합니다.

Explanation

Kubernetes는 사용자 계정의 개념과 Pod에서 실행되는 프로세스를 위한 서비스 계정의 개념을 구분합니다. ServiceAccount 승인 컨트롤러는 서비스 계정 관리를 자동화합니다. ServiceAccount 승인 컨트롤러의 몇 가지 이점은 자동화된 자격 증명 순환을 통해 액세스 토큰 유출의 위험을 완화하고 기밀을 스토리지에 보관할 필요를 없앤다는 것입니다. ServiceAccount 승인 컨트롤러는 기본적으로 활성화되지만 고의적으로 비활성화했습니다.

예제 1: 다음 Pod 정의는 Kubernetes API 서버를 시작하고 ServiceAccount 승인 컨트롤러를 비활성화합니다.


apiVersion: v1
kind: Pod
...
spec:
  containers:
  - command:
    - kube-apiserver
    ...
    - --disable-admission-plugins=ServiceAccount,PodNodeSelector
    ...

References

[1] Kubernetes API Server The Kubernetes Authors

[2] Using Admission Controllers The Kubernetes Authors

[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.13

[4] Standards Mapping - Common Weakness Enumeration CWE ID 321

[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798

[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798

[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798

[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798

[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450

[10] Standards Mapping - FIPS200 IA

[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection

[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)

[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection

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

[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)

[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography

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

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

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

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

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

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2

[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2

[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography

[32] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.1 - Use of Cryptography

[33] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography

[34] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259

[35] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798

[36] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798

[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I

[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I

[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I

[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I

[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I

[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I

[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I

[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II

[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II

[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II

[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II

[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II

[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II

[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II

[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II

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

desc.structural.yaml.kubernetes_misconfiguration_missing_serviceaccount_admission_controller.base