界: Security Features

软件安全不是安全软件。此处我们关注的主题包括身份验证、Access Control、机密性、加密和权限管理。

Kubernetes Misconfiguration: Missing Garbage Collection Threshold

Abstract
未指定激活已终止 Pod 的垃圾回收的阈值。
Explanation
当 Pod 数量超过阈值时，Kubernetes 控制器启动垃圾回收以回收已终止 Pod 占用的资源。虽然过度进行垃圾回收会降低性能，但默认阈值 12500 对于典型群集来说太高了。在进行任何垃圾回收之前，群集可能会因资源不足而变得不稳定。

示例 1：以下配置启动 Kubernetes 控制器管理器，但未指定阈值。

...
kind: Pod
...
spec:
  containers:
    - command:
      - kube-controller-manager
    image: example.domain/kube-controller-manager:v1.9.7
    imagePullPolicy: IfNotPresent
...
References
[1] Kubernetes controller manager The Kubernetes Authors
[2] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.3.1
[3] Standards Mapping - Common Weakness Enumeration CWE ID 772
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [21] CWE ID 772
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001094
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-5 Denial of Service Protection (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-5 Denial of Service Protection
[8] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[9] Standards Mapping - OWASP Top 10 2004 A9 Application Denial of Service
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.9
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.6
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[17] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[18] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection
[19] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective C.3.3 - Web Software Attack Mitigation
[20] Standards Mapping - SANS Top 25 2009 Risky Resource Management - CWE ID 404
[21] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP6080 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP6080 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP6080 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP6080 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP6080 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP6080 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP6080 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002400 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002400 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002400 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002400 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002400 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002400 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002400 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002400 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002400 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002400 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002400 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002400 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002400 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002400 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002400 CAT II
[43] Standards Mapping - Web Application Security Consortium Version 2.00 Denial of Service (WASC-10)
[44] Standards Mapping - Web Application Security Consortium 24 + 2 Denial of Service
desc.structural.yaml.kubernetes_misconfiguration_missing_garbage_collection_threshold