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The system must display a publicly-viewable pattern during a graphical desktop environment session lock.


Finding ID Version Rule ID IA Controls Severity
V-38639 RHEL-06-000260 SV-50440r3_rule Low
Setting the screensaver mode to blank-only conceals the contents of the display from passersby.
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2015-05-26


Check Text ( C-46199r4_chk )
If the GConf2 package is not installed, this is not applicable.

To ensure the screensaver is configured to be blank, run the following command:

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

If properly configured, the output should be "blank-only".
If it is not, this is a finding.
Fix Text (F-43588r2_fix)
Run the following command to set the screensaver mode in the GNOME desktop to a blank screen:

# gconftool-2 \
--direct \
--config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory \
--type string \
--set /apps/gnome-screensaver/mode blank-only