Detections
Analytics
RHEL-09-255125 - RHEL 9 SSH public host key files must have mode 0644 or less permissive.
Information
If a public host key file is modified by an unauthorized user, the SSH service may be compromised.Solution
Change the mode of public host key files under "/etc/ssh" to "0644" with the following command:$ sudo chmod 0644 /etc/ssh/*key.pub
Restart the SSH daemon for the changes to take effect:
$ sudo systemctl restart sshd.service
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_RHEL_9_V2R9_STIG.zip
Item Details
Audit Name: DISA Red Hat Enterprise Linux 9 STIG v2r9
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-258001r991589_rule, STIG-ID|RHEL-09-255125, Vuln-ID|V-258001
Plugin: Unix
Control ID: 91d72a9c028d758757e3db1671b858fc74d7b53ae8f0e9f601cb2ae3fae38fd4