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: Shared Service Account Credentials

Abstract
El comando para iniciar el administrador de controladores de Kubernetes permite que las credenciales de la cuenta de servicio se compartan entre los controladores.
Explanation
Las credenciales de la cuenta de servicio se comparten entre los controladores porque el comando para iniciar el administrador de controladores de Kubernetes no contiene la marca --use-service-account-credentials=true. Esta marca le indica al administrador de controladores que inicie cada controlador con una cuenta de servicio independiente. Cuando se usa en combinación con el control de acceso basado en roles (RBAC, por sus siglas en inglés), se garantiza que cada controlador se ejecute con los permisos mínimos necesarios para realizar sus tareas.

Ejemplo 1: La siguiente configuración inicia un administrador de controlador de Kubernetes sin la marca --use-service-account-credentials.

apiVersion: v1
kind: Pod
...
spec:
  containers:
    - command:
        - /usr/local/bin/kube-controller-manager
    image: k8s.gcr.io/kube-controller-manager:v1.9.7
...
References
[1] Kubernetes controller manager The Kubernetes Authors
[2] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.3.3
[3] Standards Mapping - Common Weakness Enumeration CWE ID 276
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000381, CCI-002233, CCI-002235
[5] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-6 Least Privilege (P1), CM-7 Least Functionality (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-6 Least Privilege, CM-7 Least Functionality
[8] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.4 General Access Control Design (L1 L2 L3), 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3), 4.3.3 Other Access Control Considerations (L2 L3), 13.4.2 GraphQL and other Web Service Data Layer Security Requirements (L2 L3)
[10] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[11] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[12] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[13] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[14] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.7, Requirement 7.2
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.10
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.10
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.10
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.10
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls
[27] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3500 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3500 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3500 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3500 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3500 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3500 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3500 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II
[49] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[50] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.kubernetes_misconfiguration_shared_service_account_credentials.base