RHEL 8 IP tunnels must use FIPS 140-3-approved cryptographic algorithms.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-279930 | RHEL-08-010280 | SV-279930r1184239_rule | CCI-000068 | high |
| Description | ||||
| Overriding the system crypto policy makes the behavior of the Libreswan service violate expectations and makes system configuration more fragmented. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2026-02-05 | |||
Details
Check Text (C-279930r1184239_chk)
Note: If the IPsec service is not installed, this is not applicable.
Verify the IPsec service uses the system crypto policy with the following command:
$ sudo grep include /etc/ipsec.conf /etc/ipsec.d/*.conf
/etc/ipsec.conf:include /etc/crypto-policies/back-ends/libreswan.config
/etc/ipsec.conf:include /etc/ipsec.d/*.conf
If the ipsec configuration file does not contain "include /etc/crypto-policies/back-ends/libreswan.config", this is a finding.
Fix Text (F-84395r1156342_fix)
Configure Libreswan to use the system cryptographic policy.
Add the following line to "/etc/ipsec.conf":
include /etc/crypto-policies/back-ends/libreswan.config