Free DISA STIG and SRG Library | Vaulted

V-56637

The operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image.

Finding ID
SRG-OS-000031-GPOS-00012
Rule ID
SV-70897r1_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-OS-000031-GPOS-00012
CCI
CCI-000060
Target Key
(None)
Documentable
No
Discussion

A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. The operating system session lock event must include an obfuscation of the display screen so as to prevent other users from reading what was previously displayed. Publicly viewable images can include static or dynamic images, for example, patterns used with screen savers, photographic images, solid colors, a clock, a battery life indicator, or a blank screen, with the additional caveat that none of the images convey sensitive information.

Fix Text

Configure the operating system to conceal, via the session lock, information previously visible on the display with a publicly viewable image.

Check Content

Verify the operating system conceals, via the session lock, information previously visible on the display with a publicly viewable image. If it does not, this is a finding.