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: Static Authentication Token

Abstract
Um servidor da API Kubernetes usa tokens estáticos para autenticar solicitações.
Explanation
Um servidor da API Kubernetes autentica solicitações comparando tokens de portador a uma lista mantida em um arquivo de token estático. O arquivo de token armazena segredos em texto simples e é de natureza estática. A autenticação baseada em tokens estáticos é suscetível a ataques de força bruta e pode vazar credenciais de acesso para invasores em um ambiente mal configurado. Para adicionar, substituir ou revogar um token, você deve reiniciar o servidor API.

Exemplo 1: Usando o sinalizador --token-auth-file, a configuração a seguir inicia um servidor da API Kubernetes que autentica solicitações por 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