The Oracle Linux operating system must not allow a non-certificate trusted host SSH logon to the system.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-221697 | OL07-00-010470 | SV-221697r991591_rule | Medium |
| Description |
| Failure to restrict system access to authenticated users negatively impacts operating system security. |
| STIG | Date |
| Oracle Linux 7 Security Technical Implementation Guide | 2024-08-26 |
Details
| Check Text (C-23412r419163_chk) |
| 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 Text (F-23401r419164_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. |