AlmaLinux OS 9 IP tunnels must use FIPS 140-3 approved cryptographic algorithms.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-269122 | SRG-OS-000033-GPOS-00014 | ALMA-09-003870 | SV-269122r1184087_rule | 2026-02-27 | 1 |
Description
Overriding the system crypto policy makes the behavior of the Libreswan service violate expectations and makes the system configuration more fragmented.
ℹ️ Check
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
Configure Libreswan to use the systemwide cryptographic policy.
Add the following line to "/etc/ipsec.conf":
include /etc/crypto-policies/back-ends/libreswan.config