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 IP tunnels must use FIPS 140-3-approved cryptographic algorithms.

DISA Rule

SV-282386r1200138_rule

Vulnerability Number

V-282386

Group Title

SRG-OS-000033-GPOS-00014

Rule Version

TOSS-05-000466

Severity

CAT I

CCI(s)

• CCI-000068 - Implement cryptographic mechanisms to protect the confidentiality of remote access sessions.

Weight

10

Fix Recommendation

Configure Libreswan to use the system cryptographic policy.

Add the following line to "/etc/ipsec.conf":

include /etc/crypto-policies/back-ends/libreswan.config

Check Contents

Verify the IPsec service uses the system crypto policy using the following command:

Note: If the IPsec service is not installed, this requirement is not applicable.

$ sudo grep include /etc/ipsec.conf /etc/ipsec.d/*.conf

/etc/ipsec.conf:include /etc/crypto-policies/back-ends/libreswan.config

If the ipsec configuration file does not contain "include /etc/crypto-policies/back-ends/libreswan.config", this is a finding.

Vulnerability Number

V-282386

Documentable

False

Rule Version

TOSS-05-000466

Severity Override Guidance

Verify the IPsec service uses the system crypto policy using the following command:

Note: If the IPsec service is not installed, this requirement is not applicable.

$ sudo grep include /etc/ipsec.conf /etc/ipsec.d/*.conf

/etc/ipsec.conf:include /etc/crypto-policies/back-ends/libreswan.config

If the ipsec configuration file does not contain "include /etc/crypto-policies/back-ends/libreswan.config", this is a finding.

Check Content Reference

M

Target Key

5738