BaselineWatch
Desk

RHEL-09-671020 RHEL 9 IP tunnels must use FIPS 140-3 approved cryptographic algorithms.

DISA STIG library V2R10
All changes in this version
first version loaded CAT I

Maps to AC-17(2) via CCI-000068

Title

RHEL 9 IP tunnels must use FIPS 140-3 approved cryptographic algorithms.

Control

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.

Discussion

Overriding the system crypto policy makes the behavior of the Libreswan service violate expectations, and makes system configuration more fragmented.

Related controls

CCI-000068

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