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Ensure Users Cannot Change GNOME3 Screensaver Lock After Idle Period

An XCCDF Rule

Description

If not already configured, ensure that users cannot change GNOME3 screensaver lock settings by adding 

/org/gnome/desktop/screensaver/lock-enabled
to /etc/dconf/db/local.d/locks/00-security-settings. For example: 
/org/gnome/desktop/screensaver/lock-enabled
After the settings have been set, run dconf update.

Rationale

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 logout because of the temporary nature of the absense.

ID
xccdf_org.ssgproject.content_rule_dconf_gnome_screensaver_lock_locked
Severity
Medium
References
Updated



Remediation - Ansible

- name: Gather the package facts
  package_facts:
    manager: auto
  tags:
  - CCE-90150-4
  - CJIS-5.5.5

Remediation - Shell Script

# Remediation is applicable only in certain platforms
if rpm --quiet -q gdm; then

# Check for setting in any of the DConf db directories
LOCKFILES=$(grep -r "^/org/gnome/desktop/screensaver/lock-enabled$" "/etc/dconf/db/" \
            | grep -v 'distro\|ibus\|local.d' | grep ":" | cut -d":" -f1)