OVALFileLinker from SCAP Security Guide ssg: [0, 1, 80], python: 3.10.12 5.11.2 2025-12-02T22:12:11 Disable Host-Based Authentication Ubuntu 22.04 Ensure 'HostbasedAuthentication' is configured with value 'no' in /etc/ssh/sshd_config or in /etc/ssh/sshd_config.d Install the OpenSSH Server Package Ubuntu 22.04 The DPKG package openssh-server should be installed. Remove the OpenSSH Server Package Ubuntu 22.04 The DPKG package openssh-server should be removed. SSHD is not required to be installed or requirement not set Ubuntu 22.04 If SSHD is not required, we check it is not installed. If SSH requirement is unset, we are good. SSHD is required to be installed or requirement not set Ubuntu 22.04 If SSHD is required, we check it is installed. If SSH requirement is unset, we are good. It doesn't matter if sshd is installed or not Ubuntu 22.04 Test if value sshd_required is 0. /etc/ssh/sshd_config ^[ \t]*(?i)HostbasedAuthentication(?-i)[ \t]+(.+?)[ \t]*(?:$|#) 1 /etc/ssh/sshd_config.d .*\.conf$ ^[ \t]*(?i)HostbasedAuthentication(?-i)[ \t]+(.+?)[ \t]*(?:$|#) 1 oval:ssg-obj_disable_host_auth:obj:1 oval:ssg-obj_disable_host_auth_config_dir:obj:1 openssh-server openssh-server oval:ssg-sshd_required:var:1 oval:ssg-sshd_required:var:1 oval:ssg-sshd_required:var:1 ^no$ ^no$ 1 2 0