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The SUSE operating system must disable the x86 Ctrl-Alt-Delete key sequence for Graphical User Interfaces.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-217160 | SLES-12-010611 | SV-217160r505931_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 the GNOME 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 |
|---|---|
| SLES 12 Security Technical Implementation Guide | 2020-09-10 |
Details
| Check Text ( C-18388r369636_chk ) |
|---|
| Verify the SUSE operating system is not configured to reboot the system when Ctrl-Alt-Delete is pressed. Check that the ctrl-alt-del.service is disabled in the graphical user interface with the following command: # cat /etc/dconf/db/local.d/00-disable-CAD [org/gnome/settings-daemon/plugins/media-keys] logout='' If logout='' is not defined under "[org/gnome/settings-daemon/plugins/media-keys]", this is a finding. |
| Fix Text (F-18386r369637_fix) |
|---|
| Configure the system to disable the Ctrl-Alt-Delete sequence for the graphical user interface. Create a database to contain the system-wide setting (if it does not already exist) with the following command: # cat /etc/dconf/db/local.d/00-disable-CAD Add the setting to disable the Ctrl-Alt-Delete sequence: [org/gnome/settings-daemon/plugins/media-keys] logout='' |