OL 9 must terminate idle user sessions.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-279935 | SRG-OS-000163-GPOS-00072 | OL09-00-002376 | SV-279935r1156358_rule | 2026-02-17 | 1 |
Description
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.
ℹ️ Check
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.
✔️ 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