STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must implement DOD or other applicable U.S. Government agency-approved TLS encryption in the GnuTLS package.

DISA Rule

SV-282526r1201501_rule

Vulnerability Number

V-282526

Group Title

SRG-OS-000250-GPOS-00093

Rule Version

TOSS-05-000472

Severity

CAT I

CCI(s)

CCI-001453 - Implement cryptographic mechanisms to protect the integrity of remote access sessions.
CCI-002418 - Protect the confidentiality and/or integrity of transmitted information.

Weight

Fix Recommendation

Configure the TOSS 5 GnuTLS library to use only NIST-approved encryption by enabling FIPS mode using the following command:

$ sudo fips-mode-setup --enable

Restart the system for the changes to take effect.

Check Contents

Verify if GnuTLS uses defined DOD-approved TLS Crypto Policy using the following command:

$ update-crypto-policies --show
FIPS

If the systemwide crypto policy is not set to "FIPS", this is a finding.

Vulnerability Number

V-282526

Documentable

False

Rule Version

TOSS-05-000472

Severity Override Guidance

Check Content Reference

Target Key

5738