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RHEL-09-271065 RHEL 9 must automatically lock graphical user sessions after 10 minutes of inactivity.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to AC-11, AC-11(1) via CCI-000057, CCI-000060

Title

RHEL 9 must automatically lock graphical user sessions after 10 minutes of inactivity.

Control

Verify RHEL 9 initiates a session lock after a 10-minute period of inactivity for graphical user interfaces with the following command: Note: This requirement assumes the use of the RHEL 9 default graphical user interface, the GNOME desktop environment. If the system does not have any graphical user interface installed, this requirement is Not Applicable. $ sudo gsettings get org.gnome.desktop.session idle-delay uint32 600 If "idle-delay" is set to "0" or a value greater than "600", this is a finding.

Discussion

A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not logout because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, the GNOME desktop can be configured to identify when a user's session has idled and take action to initiate a session lock. Satisfies: SRG-OS-000029-GPOS-00010, SRG-OS-000031-GPOS-00012

Related controls

CCI-000057, CCI-000060

Fix

Configure RHEL 9 to initiate a screensaver after a 10-minute period of inactivity for graphical user interfaces. Create a database to contain the systemwide screensaver settings (if it does not already exist) with the following command: $ sudo touch /etc/dconf/db/local.d/00-screensaver Edit /etc/dconf/db/local.d/00-screensaver and add or update the following lines: [org/gnome/desktop/session] # Set the lock time out to 600 seconds before the session is considered idle idle-delay=uint32 600 Update the system databases: $ sudo dconf update