AlmaLinux OS 9 must disable the ability of a user to restart the system from the login screen.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269279 | ALMA-09-022460 | SV-269279r1050161_rule | CCI-000366 | medium |
| Description | ||||
| A user who is at the console can reboot the system at the login screen. If restart or shutdown buttons are pressed at the login screen, this can create the risk of short-term loss of availability of systems due to reboot. | ||||
| STIG | Date | |||
| CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide | 2025-05-22 | |||
Details
Check Text (C-269279r1050161_chk)
Note: This requirement assumes the use of the AlmaLinux OS 9 default graphical user interface, Gnome Shell. If the system does not have any graphical user interface installed, this requirement is Not Applicable.
Verify AlmaLinux OS 9 disables a user's ability to restart the system with the following command:
$ grep -R disable-restart-buttons /etc/dconf/db/*
/etc/dconf/db/distro.d/20-authselect:disable-restart-buttons='true'
If the "disable-restart-button" setting is not set to "true", is missing or commented out from the dconf database files, this is a finding.
Fix Text (F-73211r1049430_fix)
Configure AlmaLinux OS 9 to disable a user's ability to restart the system.
Add or update the [org/gnome/settings-daemon/] section of the /etc/dconf/db/local.d/00-security-settings" database file and add or update the following lines:
[org/gnome/login-screen]
disable-restart-buttons=true
Then update the dconf system databases:
$ dconf update