Check: UBTU-16-010050
Canonical Ubuntu 16.04 LTS STIG:
UBTU-16-010050
(in versions v2 r3 through v1 r3)
Title
All users must be able to directly initiate a session lock for all connection types. (Cat II impact)
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 want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Rather than be forced to wait for a period of time to expire before the user session can be locked, Ubuntu operating systems need to provide users with the ability to manually invoke a session lock so users may secure their session should the need arise for them to temporarily vacate the immediate physical vicinity. Satisfies: SRG-OS-000028-GPOS-00009, SRG-OS-000030-GPOS-00011, SRG-OS-000031-GPOS-00012
Check Content
Verify the Ubuntu operating system has the 'vlock' package installed, by running the following command: # dpkg -l | grep vlock vlock_2.2.2-7 If "vlock" is not installed, this is a finding.
Fix Text
Install the "vlock" (if it is not already installed) package by running the following command: # sudo apt-get install vlock
Additional Identifiers
Rule ID: SV-214944r610931_rule
Vulnerability ID: V-214944
Group Title: SRG-OS-000028-GPOS-00009
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000056 |
The information system retains the session lock until the user reestablishes access using established identification and authentication procedures. |
| CCI-000058 |
The information system provides the capability for users to directly initiate session lock mechanisms. |
| CCI-000060 |
The information system conceals, via the session lock, information previously visible on the display with a publicly viewable image. |