界: Security Features

ソフトウェアのセキュリティは、セキュリティ ソフトウェアではありません。ここでは、認証、アクセス制御、機密性、暗号化、権限管理などのトピックについて説明します。

Kubernetes Misconfiguration: Static Authentication Token

Abstract
Kubernetes API サーバーは、静的トークンを使用してリクエストを認証します。
Explanation
Kubernetes API サーバーは、ベアラー トークンを静的トークン ファイルに保持されているリストと比較することで、リクエストを認証します。トークン ファイルはシークレットを平文で保存し、本質的に静的です。静的トークン ベースの認証はブルートフォース攻撃の影響を受けやすく、誤って設定された環境では攻撃者にアクセス資格情報を漏らす可能性があります。トークンを追加、置換、または取り消すには、API サーバーを再起動する必要があります。

例 1: 次の設定では、--token-auth-file フラグを使用して、静的トークンによってリクエストを認証する Kubernetes API サーバーを起動します。

...
spec:
  containers:
  - command:
    - kube-apiserver
    ...
    - --token-auth-file=<filename>
    ...
References
[1] Static Token File The Kubernetes Authors
[2] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.2
[3] Standards Mapping - Common Weakness Enumeration CWE ID 552
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001958
[5] Standards Mapping - FIPS200 CM
[6] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-3 Device Identification and Authentication (P1), IA-8 Identification and Authentication (Non-Organizational Users) (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-3 Device Identification and Authentication, IA-8 Identification and Authentication (Non-Organizational Users)
[9] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.9.1 Communications Architectural Requirements (L2 L3), 2.2.5 General Authenticator Requirements (L3), 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 8.3.1 Sensitive Private Data (L1 L2 L3), 8.1.6 General Data Protection (L3), 9.1.1 Communications Security Requirements (L1 L2 L3), 9.2.2 Server Communications Security Requirements (L2 L3), 14.4.5 HTTP Security Headers Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[12] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[13] Standards Mapping - OWASP Top 10 2007 A7 Broken Authentication and Session Management
[14] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[16] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[17] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.7
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.10
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.10
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.10
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.10
[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 - Security Technical Implementation Guide Version 3.1 APP3260.1 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3260 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3260 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3260 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3260 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3260 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3260 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001650 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001650 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001650 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001650 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001650 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001650 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001650 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001650 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001650 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001650 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001650 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001650 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001650 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001650 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001650 CAT II
[51] Standards Mapping - Web Application Security Consortium Version 2.00 Server Misconfiguration (WASC-14)
desc.structural.yaml.kubernetes_misconfiguration_static_authentication_token.base