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The Red Hat Enterprise 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-71959 | RHEL-07-010470 | SV-86583r3_rule | Medium |
| Description |
|---|
| Failure to restrict system access to authenticated users negatively impacts operating system security. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 7 Security Technical Implementation Guide | 2018-11-28 |
Details
| Check Text ( C-72191r1_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-78311r3_fix) |
|---|
| Configure the operating system to not 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. |