Finding ID | Version | Rule ID | IA Controls | Severity |
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V-230529 | RHEL-08-040170 | SV-230529r627750_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. |
STIG | Date |
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Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2021-12-03 |
Check Text ( C-33198r568333_chk ) |
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Verify RHEL 8 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-33173r619888_fix) |
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Configure the system to disable the Ctrl-Alt-Delete sequence for the command line with the following command: $ sudo systemctl mask ctrl-alt-del.target Created symlink /etc/systemd/system/ctrl-alt-del.target -> /dev/null Reload the daemon for this change to take effect. $ sudo systemctl daemon-reload |