STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

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

DISA Rule

SV-258023r1155656_rule

Vulnerability Number

V-258023

Group Title

SRG-OS-000029-GPOS-00010

Rule Version

RHEL-09-271065

Severity

CAT II

CCI(s)

CCI-000057 - The information system initiates a session lock after the organization-defined time period of inactivity.
CCI-000060 - Conceal, via the device lock, information previously visible on the display with a publicly viewable image.

Weight

Fix Recommendation

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

Check Contents

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.

Vulnerability Number

V-258023

Documentable

False

Rule Version

RHEL-09-271065

Severity Override Guidance

Check Content Reference

Target Key

5551