OL 8 must disable the systemd Ctrl-Alt-Delete burst key sequence.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-248871 | OL08-00-040172 | SV-248871r991589_rule | Medium |
| Description |
| A locally logged-on user who presses Ctrl-Alt-Delete when at the console can reboot the system. If accidentally pressed, as could happen in the case of a mixed OS environment, this can create the risk of short-term loss of availability of systems due to unintentional reboot. In a graphical user environment, risk of unintentional reboot from the Ctrl-Alt-Delete sequence is reduced because the user will be prompted before any action is taken. |
| STIG | Date |
| Oracle Linux 8 Security Technical Implementation Guide | 2024-12-03 |
Details
| Check Text (C-52305r780177_chk) |
| Verify OL 8 is not configured to reboot the system when Ctrl-Alt-Delete is pressed seven times within two seconds with the following command: $ sudo grep -i ctrl /etc/systemd/system.conf CtrlAltDelBurstAction=none If the "CtrlAltDelBurstAction" is not set to "none" or is commented out or missing, this is a finding. |
| Fix Text (F-52259r780178_fix) |
| Configure the system to disable the CtrlAltDelBurstAction by added or modifying the following line in the "/etc/systemd/system.conf" configuration file: CtrlAltDelBurstAction=none Reload the daemon for this change to take effect: $ sudo systemctl daemon-reload |