AlmaLinux OS 9 IP tunnels must use FIPS 140-3 approved cryptographic algorithms.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269122 | ALMA-09-003870 | SV-269122r1050004_rule | CCI-000068 | medium |
| Description | ||||
| Overriding the system crypto policy makes the behavior of the Libreswan service violate expectations and makes the system configuration more fragmented. | ||||
| STIG | Date | |||
| CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide | 2025-05-22 | |||
Details
Check Text (C-269122r1050004_chk)
Note: If the Libreswan package is not installed, this requirement is Not Applicable.
Verify that the IPsec service uses the system crypto policy with the following command:
$ grep -rE '^include ' /etc/ipsec.conf /etc/ipsec.d/
/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-73054r1049135_fix)
Configure Libreswan to use the systemwide cryptographic policy.
Add the following line to "/etc/ipsec.conf":
include /etc/crypto-policies/back-ends/libreswan.config