Finding ID | Version | Rule ID | IA Controls | Severity |
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V-221717 | OL07-00-020230 | SV-221717r833034_rule | High |
Description |
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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 the graphical 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 |
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Oracle Linux 7 Security Technical Implementation Guide | 2023-03-06 |
Check Text ( C-36276r833032_chk ) |
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Verify the operating system is not configured to reboot the system when Ctrl-Alt-Delete is pressed. Check that the ctrl-alt-del.target is masked and not active with the following command: $ sudo systemctl status ctrl-alt-del.target ctrl-alt-del.target Loaded: masked (/dev/null; bad) Active: inactive (dead) If the ctrl-alt-del.target is not masked, this is a finding. If the ctrl-alt-del.target is active, this is a finding. |
Fix Text (F-36240r833033_fix) |
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Configure the system to disable the Ctrl-Alt-Delete sequence for the command line with the following commands: $ sudo systemctl disable ctrl-alt-del.target $ sudo systemctl mask ctrl-alt-del.target |