Reino: Security Features

Segurança de software não é o mesmo que software de segurança. Aqui, estamos interessados em tópicos como autenticação, controle de acesso, confidencialidade, criptografia e gestão de privilégios.

Kubernetes Misconfiguration: Missing ServiceAccount Admission Controller

YAML

Abstract

O comando para iniciar um servidor de API do Kubernetes desabilita o controlador de admissão ServiceAccount.

Explanation

O Kubernetes distingue entre o conceito de uma conta de usuário e uma conta de serviço, que é para um processo ser executado em um pod. O controlador de admissão ServiceAccount automatiza o gerenciamento da conta de serviço. Alguns benefícios do controlador de admissão ServiceAccount são para mitigar a exfiltração de token de acesso com rotação automatizada de credenciais e eliminar a necessidade de persistir segredos no armazenamento. O controlador de admissão ServiceAccount está habilitado por padrão, mas foi deliberadamente desabilitado.

Exemplo 1: A definição de Pod a seguir inicia um servidor de API do Kubernetes e desabilita o controlador de admissão ServiceAccount.


apiVersion: v1
kind: Pod
...
spec:
  containers:
  - command:
    - kube-apiserver
    ...
    - --disable-admission-plugins=ServiceAccount,PodNodeSelector
    ...

References

[1] Kubernetes API Server The Kubernetes Authors

[2] Using Admission Controllers The Kubernetes Authors

[3] Standards Mapping - CIS Kubernetes Benchmark Recommendation 1.2.13

[4] Standards Mapping - Common Weakness Enumeration CWE ID 321

[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [19] CWE ID 798

[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [20] CWE ID 798

[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287, [15] CWE ID 798

[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [22] CWE ID 798

[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450

[10] Standards Mapping - FIPS200 IA

[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection

[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)

[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection

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

[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)

[16] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography

[17] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management

[18] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration

[19] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[20] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

[21] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2

[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6, Requirement 8.3.2

[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography

[32] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.1 - Use of Cryptography

[33] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography

[34] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 259

[35] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 798

[36] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 798

[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II, APP3350 CAT I

[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II, APP3350 CAT I

[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II, APP3350 CAT I

[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II, APP3350 CAT I

[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II, APP3350 CAT I

[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II, APP3350 CAT I

[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II, APP3350 CAT I

[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II

[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II

[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II

[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II

[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II

[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II

[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II

[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II

[59] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)

desc.structural.yaml.kubernetes_misconfiguration_missing_serviceaccount_admission_controller.base