Finding ID | Version | Rule ID | IA Controls | Severity |
---|---|---|---|---|
V-230531 | RHEL-08-040172 | SV-230531r627750_rule | High |
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 |
---|---|
Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2023-03-08 |
Check Text ( C-33200r568339_chk ) |
---|
Verify RHEL 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", commented out, or is missing, this is a finding. |
Fix Text (F-33175r619890_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 |