Finding ID | Version | Rule ID | IA Controls | Severity |
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V-257785 | RHEL-09-211050 | SV-257785r958726_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 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. Satisfies: SRG-OS-000324-GPOS-00125, SRG-OS-000480-GPOS-00227 |
STIG | Date |
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Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2024-06-04 |
Check Text ( C-61526r925340_chk ) |
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Verify RHEL 9 is not configured to reboot the system when Ctrl-Alt-Delete is pressed with the following command: $ sudo systemctl status ctrl-alt-del.target ctrl-alt-del.target Loaded: masked (Reason: Unit ctrl-alt-del.target is masked.) Active: inactive (dead) If the "ctrl-alt-del.target" is loaded and not masked, this is a finding. |
Fix Text (F-61450r925341_fix) |
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Configure RHEL 9 to disable the ctrl-alt-del.target with the following command: $ sudo systemctl disable --now ctrl-alt-del.target $ sudo systemctl mask --now ctrl-alt-del.target |