Check: UBTU-24-101000
Canonical Ubuntu 24.04 LTS STIG:
UBTU-24-101000
(in version v1 r1)
Title
Ubuntu 24.04 LTS must allow users 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 24.04 LTSs need to provide users with the ability to manually invoke a session lock so users may secure their session if they need to temporarily vacate the immediate physical vicinity. Satisfies: SRG-OS-000031-GPOS-00012, SRG-OS-000030-GPOS-00011
Check Content
Verify Ubuntu 24.04 LTS has the "vlock" package installed with the following command: $ dpkg -l | grep vlock ii vlock 2.2.2-10 amd64 Virtual Console locking program If "vlock" is not installed, this is a finding.
Fix Text
Install the "vlock" package (if it is not already installed) by running the following command: $ sudo apt install -y vlock
Additional Identifiers
Rule ID: SV-270674r1067167_rule
Vulnerability ID: V-270674
Group Title: SRG-OS-000031-GPOS-00012
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000057 |
Prevent further access to the system by initiating a device lock after organization-defined time period of inactivity; and/or requiring the user to initiate a device lock before leaving the system unattended. |
| CCI-000060 |
Conceal, via the device lock, information previously visible on the display with a publicly viewable image. |