Graphical desktop environments provided by the system must have automatic lock enabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-27284	GEN000500-3	SV-48551r1_rule	PESL-1	Medium

Description
If graphical desktop sessions do not lock the session after 15 minutes of inactivity, requiring re-authentication to resume operations, the system or individual data could be compromised by an alert intruder who could exploit the oversight. This requirement applies to graphical desktop environments provided by the system to locally attached displays and input devices as well as to graphical desktop environments provided to remote systems, including thin clients.

Description

If graphical desktop sessions do not lock the session after 15 minutes of inactivity, requiring re-authentication to resume operations, the system or individual data could be compromised by an alert intruder who could exploit the oversight. This requirement applies to graphical desktop environments provided by the system to locally attached displays and input devices as well as to graphical desktop environments provided to remote systems, including thin clients.

STIG	Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide	2014-01-09

Details

Check Text ( C-45195r1_chk )
If the "xorg-x11-server-Xorg" package is not installed, this is not applicable. For the Gnome screen saver, check the lock_enabled flag. Procedure: # gconftool-2 --direct --config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory --get /apps/gnome-screensaver/lock_enabled If this does not return "true", this is a finding.

Fix Text (F-33042r1_fix)
For the Gnome screen saver, set the lock_enabled flag. Procedure: # gconftool-2 --direct --config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory --type bool --set /apps/gnome-screensaver/lock_enabled true