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

NixOS must protect the confidentiality and integrity of all information at rest.

DISA Rule

SV-268144r1039320_rule

Vulnerability Number

V-268144

Group Title

SRG-OS-000185-GPOS-00079

Rule Version

ANIX-00-001010

Severity

CAT I

CCI(s)

• CCI-001199 - Protects the confidentiality and/or integrity of organization-defined information at rest.
• CCI-002475 - Implement cryptographic mechanisms to prevent unauthorized modification of organization-defined information when at rest on organization-defined system components.
• CCI-002476 - Implement cryptographic mechanisms to prevent unauthorized disclosure of organization-defined information at rest on organization-defined system components.
• CCI-004910 - Provide protected storage for cryptographic keys with organization-defined safeguards and/or hardware protected key store.

Weight

10

Fix Recommendation

Configure NixOS to prevent unauthorized modification of all information at rest by using disk encryption.

Encrypting a partition in an already installed system is more difficult, because existing partitions will need to be resized and changed. To encrypt an entire partition, dedicate a partition for encryption in the partition layout.

Refer to the NixOS manual Section 8.1 "LUKS-Encrypted File Systems" for further details.

NixOS Wiki: https://nixos.wiki/wiki/Full_Disk_Encryption

Check Contents

Verify NixOS prevents unauthorized disclosure or modification of all information requiring at-rest protection by using disk encryption.

Verify all system partitions are encrypted with the following command:

$ sudo blkid

/dev/sda1: LABEL="nixos" UUID="67b7d7fe-de60-6fd0-befb-e6748cf97743" TYPE="crypto_LUKS"

Every persistent disk partition present must be of type "crypto_LUKS". If any partitions other than the boot partition or pseudo file systems (such as /proc or /sys) are not type "crypto_LUKS", ask the administrator to indicate how the partitions are encrypted. If there is no evidence that these partitions are encrypted, this is a finding.

Vulnerability Number

V-268144

Documentable

False

Rule Version

ANIX-00-001010

Severity Override Guidance

Verify NixOS prevents unauthorized disclosure or modification of all information requiring at-rest protection by using disk encryption.

Verify all system partitions are encrypted with the following command:

$ sudo blkid

/dev/sda1: LABEL="nixos" UUID="67b7d7fe-de60-6fd0-befb-e6748cf97743" TYPE="crypto_LUKS"

Every persistent disk partition present must be of type "crypto_LUKS". If any partitions other than the boot partition or pseudo file systems (such as /proc or /sys) are not type "crypto_LUKS", ask the administrator to indicate how the partitions are encrypted. If there is no evidence that these partitions are encrypted, this is a finding.

Check Content Reference

M

Target Key

5658