STIGQter: STIG Summary: Anduril NixOS Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Oct 2025:

NixOS system configuration files and directories must be owned by root.

DISA Rule

SV-268122r1131049_rule

Vulnerability Number

V-268122

Group Title

SRG-OS-000063-GPOS-00032

Rule Version

ANIX-00-000680

Severity

CAT II

CCI(s)

CCI-000171 - Allow organization-defined personnel or roles to select the event types that are to be logged by specific components of the system.

Weight

Fix Recommendation

Update the NixOS config, typically stored either in /etc/nixos/configuration.nix or /etc/nixos/flake.nix, to only use the root user for files under /etc/audit.

Rebuild and switch to the new NixOS configuration:
$ sudo nixos-rebuild switch

Check Contents

Verify that the NixOS audit configuration files and directories are owned by root with the following command:

$ sudo find /etc/audit -exec stat -L -c "%U %n" {} \;
$ sudo find /etc/systemd/system -follow -iname "audit*service" -exec stat -c "%U %n" {} \;

root /etc/audit
root /etc/audit/auditd.conf
root /etc/systemd/system/audit.service
root /etc/systemd/system/auditd.service
root /etc/systemd/system/basic.target.wants/audit.service
root /etc/systemd/system/sysinit.target.wants/auditd.service

If the audit configuration files and directories are not owned by root, this is a finding.

Vulnerability Number

V-268122

Documentable

False

Rule Version

ANIX-00-000680

Severity Override Guidance

Check Content Reference

Target Key

5658