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Graphical desktop environments provided by the system must automatically lock after 15 minutes of inactivity.


Overview

Finding ID Version Rule ID IA Controls Severity
V-216102 SOL-11.1-040180 SV-216102r603268_rule Medium
Description
Allowing access to a graphical environment when the user is not attending the system can allow unauthorized users access to the system.
STIG Date
Solaris 11 X86 Security Technical Implementation Guide 2020-12-04

Details

Check Text ( C-17340r372688_chk )
If the system is not running XWindows, this check does not apply.

Determine if the screen saver timeout is configured properly.

# grep "^\*timeout:" /usr/share/X11/app-defaults/XScreenSaver

If the output is not:
*timeout: 0:15:00
this is a finding.

# grep "^\*lockTimeout:" /usr/share/X11/app-defaults/XScreenSaver

If the output is not:
*lockTimeout: 0:00:05
this is a finding.

# grep "^\*lock:" /usr/share/X11/app-defaults/XScreenSaver

If the output is not:
*lock: True
this is a finding.

For each existing user, check the configuration of their personal .xscreensaver file.
# grep "^lock:" $HOME/.xscreensaver

If the output is not:
*lock: True
this is a finding.

grep "^lockTimeout:" $HOME/.xscreensaver
If the output is not:
*lockTimeout: 0:00:05
this is a finding.
Fix Text (F-17338r372689_fix)
The root role is required.

Edit the global screensaver configuration file to ensure 15 minute screen lock.

# pfedit /usr/share/X11/app-defaults/XScreenSaver

Find the timeout control lines and change them to read:

*timeout: 0:15:00
*lockTimeout:0:00:05
*lock: True

For each user on the system, edit their local $HOME/.xscreensaver file and change the timeout values.

# pfedit $HOME/.xscreensaver

Find the timeout control lines and change them to read:

timeout: 0:15:00
lockTimeout:0:00:05
lock: True