The SSH private host key files must have mode 0600 or less permissive.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22472 | GEN005523 | SV-63863r1_rule | Medium |
| Description |
|---|
| If an unauthorized user obtains the private SSH host key file, the host could be impersonated. |
| STIG | Date |
|---|---|
| Oracle Linux 5 Security Technical Implementation Guide | 2020-02-25 |
Details
| Check Text ( C-52401r2_chk ) |
|---|
| Check the permissions for SSH private host key files. # ls -lL /etc/ssh/*key If any file has a mode more permissive than 0600, this is a finding. |
| Fix Text (F-54437r3_fix) |
|---|
| Change the permissions for the SSH private host key files. # chmod 0600 /etc/ssh/*key |