NixOS must generate audit records for all account creations, modifications, disabling, and termination events.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-268167 | ANIX-00-001820 | SV-268167r1039389_rule | CCI-000172 | medium |
| Description | ||||
| Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). Satisfies: SRG-OS-000476-GPOS-00221, SRG-OS-000042-GPOS-00020, SRG-OS-000274-GPOS-00104, SRG-OS-000275-GPOS-00105, SRG-OS-000276-GPOS-00106, SRG-OS-000277-GPOS-00107, SRG-OS-000477-GPOS-00222, SRG-OS-000304-GPOS-00121 | ||||
| STIG | Date | |||
| Anduril NixOS Security Technical Implementation Guide | 2024-10-25 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AU-12
1.00
- DISA · 1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.3.1
1.00
- DISA · 1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.3.2
1.00
- DISA · 1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000172
1.00
- DISA · 1 · disa_xccdf · related
Details
Check Text (C-268167r1039389_chk)
Verify NixOS is configured to generate audit records on account events with the following command:
$ sudo auditctl -l | grep /etc
-w /etc/sudoers -p wa -k identity
-w /etc/passwd -p wa -k identity
-w /etc/shadow -p wa -k identity
-w /etc/gshadow -p wa -k identity
-w /etc/group -p wa -k identity
-w /etc/security/opasswd -p wa -k identity
If the output from the command does not include the example output, this is a finding.
Fix Text (F-71994r1039388_fix)
Modify NixOS to generate audit logs on account creations and modifications.
Edit /etc/nixos/configuration.nix and ensure the following options are configured:
security.audit.rules = [
"-w /etc/sudoers -p wa -k identity"
"-w /etc/passwd -p wa -k identity"
"-w /etc/shadow -p wa -k identity"
"-w /etc/gshadow -p wa -k identity"
"-w /etc/group -p wa -k identity"
"-w /etc/security/opasswd -p wa -k identity"
];
Rebuild the system with the following command:
$ sudo nixos-rebuild switch