RHEL-10-300070 RHEL 10 must use FIPS 140-3-approved cryptographic algorithms for IP tunnels.
All changes in this version
Maps to AC-17(2) via CCI-000068
Title
RHEL 10 must use FIPS 140-3-approved cryptographic algorithms for IP tunnels.
Control
Note: If the IPsec service is not installed, this requirement is not applicable. Verify RHEL 10 sets the IPsec service to use the systemwide cryptographic 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 If the ipsec configuration file does not contain "include /etc/crypto-policies/back-ends/libreswan.config", this is a finding.
Discussion
Overriding the systemwide cryptographic policy makes the behavior of the Libreswan service violate expectations and makes system configuration more fragmented.
Related controls
CCI-000068
Fix
Configure RHEL 10 so that Libreswan uses the systemwide cryptographic policy. Add the following line to "/etc/ipsec.conf": include /etc/crypto-policies/back-ends/libreswan.config