Reino: Security Features

La seguridad de un software no es un software de seguridad. Nos preocupamos de cuestiones como la autenticación, el control de acceso, la confidencialidad, la criptografía y la gestión de privilegios.

Kubernetes Misconfiguration: Static Authentication Token

Abstract
Un servidor API de Kubernetes utiliza tokens estáticos para autenticar solicitudes.
Explanation
Un servidor API de Kubernetes autentica las solicitudes comparando tokens de portador con una lista guardada en un archivo de token estático. El archivo de token almacena secretos en texto plano y es de naturaleza estática. La autenticación estática basada en tokens es susceptible a ataques por fuerza bruta y puede filtrar las credenciales de acceso a los atacantes en un entorno mal configurado. Para agregar, reemplazar o revocar un token, debe reiniciar el servidor API.

Ejemplo 1: Utilizando la marca --token-auth-file, la siguiente configuración inicia un servidor API de Kubernetes que autentica las solicitudes mediante tokens estáticos.

...
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