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: Host Write Access

Abstract
Os aplicativos em contêineres podem gravar no sistema de arquivos host do contêiner.
Explanation
Por padrão, um tempo de execução do contêiner Kubernetes impede que os aplicativos gravem no sistema de arquivos raiz do contêiner. A configuração readOnlyRootFilesystem: false desabilita essa restrição, o que permite que um invasor adultere o sistema de arquivos local ou grave um executável mal-intencionado no disco.

Exemplo 1: O seguinte manifesto define o campo readOnlyRootFilesystem como false, o que permite que os aplicativos dentro de um contêiner gravem dados no disco local.

...
kind: Pod
...
spec:
  containers:
  - name: ...
    ...
    securityContext:
    readOnlyRootFilesystem: false
    ...
References
[1] Pod Security Context The Kubernetes Authors
[2] Standards Mapping - Common Weakness Enumeration CWE ID 284
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [15] CWE ID 732
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [16] CWE ID 732
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [22] CWE ID 732
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, 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)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement
[11] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.4.2 Access Control Architectural Requirements (L2 L3), 1.4.4 Access Control Architectural Requirements (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 2007 A10 Failure to Restrict URL Access
[16] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[17] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[18] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[19] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.10
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[31] 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
[32] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 732
[33] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 285
[34] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 732
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.2 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.2 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.2 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.kubernetes_misconfiguration_host_write_access.base