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

NixOS must monitor remote access methods.

DISA Rule

SV-268088r1130975_rule

Vulnerability Number

V-268088

Group Title

SRG-OS-000032-GPOS-00013

Rule Version

ANIX-00-000140

Severity

CAT II

CCI(s)

• CCI-000067 - Employ automated mechanisms to monitor remote access methods.

Weight

10

Fix Recommendation

Configure NixOS to monitor remote access methods by adding the following configuration to the /etc/nixos/configuration.nix or /etc/nixos/flake.nix:

services.openssh.logLevel = "VERBOSE";

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

Check Contents

Confirm the NixOS monitors remote access methods with the following command:

$ grep "LogLevel" /etc/ssh/sshd_config
LogLevel VERBOSE

If "LogLevel" does not equal "VERBOSE", is missing, or is commented out, this is a finding.

Vulnerability Number

V-268088

Documentable

False

Rule Version

ANIX-00-000140

Severity Override Guidance

Confirm the NixOS monitors remote access methods with the following command:

$ grep "LogLevel" /etc/ssh/sshd_config
LogLevel VERBOSE

If "LogLevel" does not equal "VERBOSE", is missing, or is commented out, this is a finding.

Check Content Reference

M

Target Key

5658