The operating system session lock mechanism, when activated on a device with a display screen, must place a publicly viewable pattern onto the associated display, hiding what was previously visible on the screen.

From Solaris 11 SPARC Security Technical Implementation Guide

Associated with: CCI-000060

SV-61011r1_rule The operating system session lock mechanism, when activated on a device with a display screen, must place a publicly viewable pattern onto the associated display, hiding what was previously visible on the screen.

Vulnerability discussion

A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the system but does not log out because of the temporary nature of the absence. The session lock will also include an obfuscation of the display screen to prevent other users from reading what was previously displayed.

Check content

Using the: System>Preferences>Screensaver Menu item the user can select other screens or disable screensaver. Check that "Disable Screensaver" is not selected in the Gnome Screensaver preferences. If "Disable Screensaver" is selected or "Blank Screen Only" is not selected, this is a finding.

Fix text

Using the: System>Preferences>Screensaver Click on Mode's pull-down and select: Blank Screen Only. Ensure that "Blank Screen Only" is selected.

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