Graphical desktop environments provided by the system must automatically lock after 15 minutes of inactivity and the system must require users to re-authenticate to unlock the environment.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-4083	GEN000500	SV-39096r1_rule	PESL-1	Medium

Description
If graphical desktop sessions do not lock the session after 15 minutes of inactivity, requiring re-authentication to resume operations, the system or individual data could be compromised by an alert intruder who could exploit the oversight. This requirement applies to graphical desktop environments provided by the system to locally attached displays and input devices, as well as, to graphical desktop environments provided to remote systems, including thin clients.

Description

If graphical desktop sessions do not lock the session after 15 minutes of inactivity, requiring re-authentication to resume operations, the system or individual data could be compromised by an alert intruder who could exploit the oversight. This requirement applies to graphical desktop environments provided by the system to locally attached displays and input devices, as well as, to graphical desktop environments provided to remote systems, including thin clients.

STIG	Date
AIX 5.3 Security Technical Implementation Guide	2012-05-25

Details

Check Text ( C-8205r2_chk )
Log into a graphical desktop environment provided by the system. Allow the session to remain idle for 15 minutes. If the desktop session is not automatically locked after 15 minutes, or does not require re-authentication to resume operations, this is a finding.

Fix Text (F-4016r2_fix)
Consult vendor documentation to determine the settings required for the system to lock graphical desktop environments. Configure the system to lock graphical desktop environments after 15 minutes of inactivity and require re-authentication to resume operations.