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: Service Account Token Automounted

YAML

Abstract

El automontaje de las credenciales de API no está deshabilitado.

Explanation

A menos que se especifique lo contrario, a cualquier Pod recién creado se le asigna automáticamente una cuenta de servicio default. Para cada cuenta de servicio, se genera automáticamente un token de acceso a la API que pasa a estar disponible en un directorio montado. Los atacantes pueden usar el token de acceso en cualquier contenedor comprometido para obtener acceso a las API de servicio sensibles a la seguridad y con protección insuficiente.

El automontaje de las credenciales de API para la cuenta de servicio predeterminada de un Pod no está deshabilitado porque automountServiceAccountToken no está definido o la configuración de la cuenta de servicio predeterminada contiene el ajuste automountServiceAccountToken: true.

Ejemplo 1: Las credenciales de API para la cuenta de servicio default de un Pod se automontan si automountServiceAccountToken no está definido o se ha configurado en true, como en este ejemplo.


apiVersion: v1
kind: ServiceAccount
metadata:
  name: default
  namespace: demo-namespace
automountServiceAccountToken: true
...

Ejemplo 2: Las credenciales de API se automontan para un Pod porque hay un ajuste automountServiceAccountToken: true en la cuenta de servicio default, como en este ejemplo.


apiVersion: v1
kind: Pod
  ...
spec:
  automountServiceAccountToken: true
  ...

References

[1] Configure Service Accounts for Pods The Kubernetes Authors

[2] How to _not_ create a service account? kubernetes, GitHub repository

[3] Workload Resources The Kubernetes Authors

[4] Standards Mapping - CIS Kubernetes Benchmark Recommendation 5.1.5, Recommendation 5.1.6

[5] Standards Mapping - Common Weakness Enumeration CWE ID 749

[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-000804, CCI-001082, CCI-001084, CCI-002165

[7] Standards Mapping - FIPS200 AC

[8] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation

[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), IA-8 Identification and Authentication (Non-Organizational Users) (P1), SC-2 Application Partitioning (P1), SC-3 Security Function Isolation (P1)

[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, IA-8 Identification and Authentication (Non-Organizational Users), SC-2 Separation of System and User Functionality, SC-3 Security Function Isolation

[11] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration

[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 14.5.1 Validate HTTP Request Header Requirements (L1 L2 L3)

[13] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication

[14] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control

[15] Standards Mapping - OWASP Top 10 2010 A8 Failure to Restrict URL Access

[16] Standards Mapping - OWASP Top 10 2013 A7 Missing Function Level Access Control

[17] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control

[18] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 7.2

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 7.2

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.10

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control

[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control

[30] 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

[31] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 862

[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3360 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3470.1 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3470.1 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3470.1 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3470.1 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3470.1 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001870 CAT II, APSC-DV-002150 CAT II, APSC-DV-002360 CAT II

[54] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)

[55] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization

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