Information
The autorun-never setting allows the GNOME Desktop Display Manager to disable autorun through GDM.
Malware on removable media may taking advantage of Autorun features when the media is inserted into a system and execute.
Solution
- IF - A user profile exists run the following command to set autorun-never to true for GDM users:
# gsettings set org.gnome.desktop.media-handling autorun-never true
Note:
- gsettings commands in this section MUST be done from a command window on a graphical desktop or an error will be returned.
- The system must be restarted after all gsettings configurations have been set in order for CIS-CAT Assessor to appropriately assess.
- If the dconf database is not updating correctly due to umask requirements contain in the benchmark, then use (umask 0022 && gsetting set) commands from above to temporarily set umask ensuring that any files or directories created by gsettings will have the required permissions.
- OR/IF - A lock does not exist:
- create the file /etc/dconf/db/local.d/locks/00-media-autorun with the following content:
[org/gnome/desktop/media-handling]
autorun-never=true <xhtml:ol start="2"> - Update the systems databases:
# dconf update
Note: Users must log out and back in again before the system-wide settings take effect.