Oracle Linux 9 STIG Version Comparison

There are 34 differences between versions v1 r2 (July 2, 2025) (the "left" version) and v1 r4 (Jan. 5, 2026) (the "right" version).

Check OL09-00-002376 was added to the benchmark in the "right" version.

This check's original form is available here.

Title

OL 9 must terminate idle user sessions.

Check Content

Verify that OL 9 logs out sessions that are idle for 10 minutes with the following command: $ sudo grep -i ^StopIdleSessionSec /etc/systemd/logind.conf StopIdleSessionSec=600 If "StopIdleSessionSec" is not configured to "600" seconds, this is a finding.

Discussion

Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended.

Fix

Configure OL 9 to log out idle sessions by editing the /etc/systemd/logind.conf file with the following line: StopIdleSessionSec=600 The "logind" service must be restarted for the changes to take effect. To restart the "logind" service, run the following command: $ sudo systemctl restart systemd-logind