계: Security Features

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Kubernetes Misconfiguration: readOnlyPort Enabled

Abstract
오픈 액세스 Kubelet API가 시스템 정보를 누출합니다.
Explanation
이전 버전과의 호환성을 유지하기 위해 Kubelet은 인증이나 권한 부여를 요구하지 않고 읽기 전용 포트에서 API의 하위 집합을 제공할 수 있습니다. 이러한 API의 반환 값에는 Kubelet이 제공하는 노드의 매우 상세한 사양 및 성능 메트릭과 노드에 배포된 Pod의 메타데이터가 포함됩니다.

예제 1: 다음 구성은 Kubelet 읽기 전용 포트를 12345로 설정합니다.

...
kind: KubeletConfiguration
...
readOnlyPort: 12345
...
References
[1] Set Kubelet parameters via a config file The Kubernetes Authors
[2] Kubelet Options The Kubernetes Authors
[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 4.2.4
[4] Standards Mapping - Common Weakness Enumeration CWE ID 215, CWE ID 489, CWE ID 497
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [4] CWE ID 200
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [7] CWE ID 200
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [20] CWE ID 200
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [17] CWE ID 200
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-002420
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1), SC-8 Transmission Confidentiality and Integrity (P1), SI-11 Error Handling (P2)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement, SC-8 Transmission Confidentiality and Integrity, SI-11 Error Handling
[13] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 8.3.4 Sensitive Private Data (L1 L2 L3), 14.3.2 Unintended Security Disclosure Requirements (L1 L2 L3), 14.3.3 Unintended Security Disclosure Requirements (L1 L2 L3), 14.2.2 Dependency (L1 L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M2 Insecure Data Storage
[16] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[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 1.2 Requirement 6.5.6
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.5
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.5
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.5
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.5
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.6 - Sensitive Data Retention
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.6 - Sensitive Data Retention
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3620 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3620 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3620 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3620 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3620 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3620 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3620 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[53] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.yaml.kubernetes_misconfiguration_readonlyport_enabled.base