Check: SRG-APP-000002-NDM-000201
Network Device Management SRG:
SRG-APP-000002-NDM-000201
(in versions v4 r3 through v2 r7)
Title
The network device must conceal, via the session lock, information previously visible on the display with a publicly viewable image. (Cat II impact)
Discussion
A session lock is a temporary network device or administrator-initiated action taken when the administrator stops work but does not log out of the network device. The network management session lock event must include an obfuscation of the display screen to prevent other users from reading what was previously displayed. Permitted publicly viewable images can include static or dynamic images, for example, patterns used with screen savers, photographic images, solid colors, a clock, or a blank screen, with the additional caveat that none of the images convey sensitive information.
Check Content
Review the network device configuration to see if the device conceals information previously visible on the display with a publicly viewable image during the session lock. This can be demonstrated by the network administrator. If previously visible information is not concealed with a publicly viewable image by the session lock, this is a finding.
Fix Text
Configure the network device to conceal information previously visible on the display with a publicly viewable image during the session lock.
Additional Identifiers
Rule ID: SV-202006r879512_rule
Vulnerability ID: V-202006
Group Title: SRG-APP-000002
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000060 |
The information system conceals, via the session lock, information previously visible on the display with a publicly viewable image. |
Controls
Number | Title |
---|---|
AC-11 (1) |
Pattern-Hiding Displays |