RHEL 9 IP tunnels must use FIPS 140-3 approved cryptographic algorithms.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-258232 | RHEL-09-671020 | SV-258232r1045440_rule | CCI-000068 | medium |
| 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 9 Security Technical Implementation Guide | 2025-05-14 | |||
Details
Check Text (C-258232r1045440_chk)
Verify that the IPsec service uses the system crypto policy with 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.
Fix Text (F-61897r926682_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