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

NixOS must enforce authorized access to the corresponding private key for PKI-based authentication.

DISA Rule

SV-268125r1039263_rule

Vulnerability Number

V-268125

Group Title

SRG-OS-000067-GPOS-00035

Rule Version

ANIX-00-000720

Severity

CAT II

CCI(s)

• CCI-000186 - For public key-based authentication, enforce authorized access to the corresponding private key.

Weight

10

Fix Recommendation

Create new private/public key pairs that use a passcode using the following command:

$ sudo ssh-keygen -n [passphrase]

Check Contents

Verify the SSH private key files have a passcode.

For each private key stored on the system, use the following command:

$ sudo ssh-keygen -y -f /path/to/file

If the contents of the key are displayed, this is a finding.

Vulnerability Number

V-268125

Documentable

False

Rule Version

ANIX-00-000720

Severity Override Guidance

Verify the SSH private key files have a passcode.

For each private key stored on the system, use the following command:

$ sudo ssh-keygen -y -f /path/to/file

If the contents of the key are displayed, this is a finding.

Check Content Reference

M

Target Key

5658