The Oracle Linux operating system must not allow a non-certificate trusted host SSH logon to the system.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-221697SRG-OS-000480-GPOS-00229OL07-00-010470SV-221697r991591_rule2025-02-203
Description
Failure to restrict system access to authenticated users negatively impacts operating system security.
ℹ️ Check
Verify the operating system does not allow a non-certificate trusted host SSH logon to the system. Check for the value of the "HostbasedAuthentication" keyword with the following command: # grep -i hostbasedauthentication /etc/ssh/sshd_config HostbasedAuthentication no If the "HostbasedAuthentication" keyword is not set to "no", is missing, or is commented out, this is a finding.
✔️ Fix
Configure the operating system not to allow a non-certificate trusted host SSH logon to the system. Edit the "/etc/ssh/sshd_config" file to uncomment or add the line for "HostbasedAuthentication" keyword and set the value to "no": HostbasedAuthentication no The SSH service must be restarted for changes to take effect.