STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

OL 8 must prevent a user from overriding the session lock-enabled setting for the graphical user interface.

DISA Rule

SV-248684r958402_rule

Vulnerability Number

V-248684

Group Title

SRG-OS-000029-GPOS-00010

Rule Version

OL08-00-020082

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

10

Fix Recommendation

Configure OL 8 to prevent a user from overriding settings for graphical user interfaces.

Create a database to contain the system-wide screensaver settings (if it does not already exist) with the following command.

Note: The example below is using the database "local" for the system, so if the system is using another database in "/etc/dconf/profile/user", the file should be created under the appropriate subdirectory.

$ sudo touch /etc/dconf/db/local.d/locks/session

Add the following setting to prevent non-privileged users from modifying it:

/org/gnome/desktop/screensaver/lock-enabled

Check Contents

Note: This requirement assumes the use of the OL 8 default graphical user interface, Gnome Shell. If the system does not have any graphical user interface installed, this requirement is Not Applicable.

Verify the operating system prevents a user from overriding settings for graphical user interfaces.

Determine which profile the system database is using with the following command:

$ sudo grep system-db /etc/dconf/profile/user

system-db:local

Check that graphical settings are locked from non-privileged user modification with the following command.

Note: The example below is using the database "local" for the system, so the path is "/etc/dconf/db/local.d". This path must be modified if a database other than "local" is being used.

$ sudo grep -i lock-enabled /etc/dconf/db/local.d/locks/*

/org/gnome/desktop/screensaver/lock-enabled

If the command does not return at least the example result, this is a finding.

Vulnerability Number

V-248684

Documentable

False

Rule Version

OL08-00-020082

Severity Override Guidance

Note: This requirement assumes the use of the OL 8 default graphical user interface, Gnome Shell. If the system does not have any graphical user interface installed, this requirement is Not Applicable.

Verify the operating system prevents a user from overriding settings for graphical user interfaces.

Determine which profile the system database is using with the following command:

$ sudo grep system-db /etc/dconf/profile/user

system-db:local

Check that graphical settings are locked from non-privileged user modification with the following command.

Note: The example below is using the database "local" for the system, so the path is "/etc/dconf/db/local.d". This path must be modified if a database other than "local" is being used.

$ sudo grep -i lock-enabled /etc/dconf/db/local.d/locks/*

/org/gnome/desktop/screensaver/lock-enabled

If the command does not return at least the example result, this is a finding.

Check Content Reference

M

Target Key

5416