Ubuntu 22.04 LTS must allow users to directly initiate a session lock for all connection types.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-260553	UBTU-22-412025	SV-260553r986283_rule		Medium

Description
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 22.04 LTS 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-000030-GPOS-00011, SRG-OS-000031-GPOS-00012

Description

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 22.04 LTS 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-000030-GPOS-00011, SRG-OS-000031-GPOS-00012

STIG	Date
Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide	2024-05-30

Details

Check Text ( C-64282r953470_chk )
Verify Ubuntu 22.04 LTS has the "vlock" package installed by using 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 (F-64190r953471_fix)
Install the "vlock" package by using the following command: $ sudo apt-get install vlock