Detections
Analytics

1.88 OL08-00-010490

Information

The OL 8 SSH private host key files must have mode "0640" or less permissive.

GROUP ID: V-248602RULE ID: SV-248602r991589

If an unauthorized user obtains the private SSH host key file, the host could be impersonated.

Solution

Configure the mode of SSH private host key files under "/etc/ssh" to "0640" with the following command:

$ sudo chmod 0640 /etc/ssh/ssh_host*key

The SSH daemon must be restarted for the changes to take effect. To restart the SSH daemon, run the following command:

$ sudo systemctl restart sshd.service

See Also

https://workbench.cisecurity.org/benchmarks/23791

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-248602r991589_rule, STIG-ID|OL08-00-010490, Vuln-ID|V-248602

Plugin: Unix

Control ID: ee382800bc5f0f6b8d7136209385ffc25fde7c2d2878ce3c7d261b83e03c39e9