The libreswan package must be installed.

Providing the ability for remote users or systems to initiate a secure VPN connection protects information when it is transmitted over a wide area network.

Note: If there is no operational need for Libreswan to be installed, this rule is not applicable.

Verify that the libreswan package is installed with the following command:

$ dnf list --installed libreswan

libreswan.x86_64 4.9-4.el9_2 @appstream

If the "libreswan" package is not installed, this is a finding.

Install the libreswan package with the following command:

$ dnf install libreswan