openstack-ansible-security/doc/source/developer-notes/V-38594.rst

Fixed by another STIG

Neither Ubuntu or openstack-ansible installs the rsh daemon by default. Running a rsh daemon isn't recommended under most situations, so the rsh server package will be removed from the system if it is installed.

The rsh server is removed by the Ansible tasks for V-38591, so no action is required here.