RHEL 8 IP tunnels must use FIPS 140-3-approved cryptographic algorithms.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-279930 | SRG-OS-000033-GPOS-00014 | RHEL-08-010280 | SV-279930r1184239_rule | 2026-02-05 | 2 |
Description
Overriding the system crypto policy makes the behavior of the Libreswan service violate expectations and makes system configuration more fragmented.
ℹ️ Check
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
Configure Libreswan to use the system cryptographic policy.
Add the following line to "/etc/ipsec.conf":
include /etc/crypto-policies/back-ends/libreswan.config