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The graphical desktop environment must set the idle timeout to no more than 15 minutes.


Finding ID Version Rule ID IA Controls Severity
V-218011 RHEL-06-000257 SV-218011r505923_rule Medium
Setting the idle delay controls when the screensaver will start, and can be combined with screen locking to prevent access from passersby.
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2020-09-03


Check Text ( C-19492r377048_chk )
If the GConf2 package is not installed, this is not applicable.

To check the current idle time-out value, run the following command:

$ gconftool-2 --direct --config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory --get /apps/gnome-screensaver/idle_delay

If properly configured, the output should be "15".

If it is not, this is a finding.
Fix Text (F-19490r377049_fix)
Run the following command to set the idle time-out value for inactivity in the GNOME desktop to 15 minutes:

# gconftool-2 \
--direct \
--config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory \
--type int \
--set /apps/gnome-screensaver/idle_delay 15