STIGUI
V-271678CAT II — Medium severitySV-271678r1091746_rule

OL 9 must prevent a user from overriding the disabling of the graphical user interface automount function.

Rule version OL09-00-002120 · STIG v1 · 2026-08-21

Discussion

A nonprivileged account is any operating system account with authorizations of a nonprivileged user.

Satisfies: SRG-OS-000114-GPOS-00059, SRG-OS-000378-GPOS-00163

Check

This requirement assumes the use of the OL 9 default graphical user interface—the GNOME desktop environment. If the system does not have any graphical user interface installed, this requirement is Not Applicable.

Verify that OL 9 disables ability of the user to override the graphical user interface automount setting.

Determine which profile the system database is using with the following command:

$ grep system-db /etc/dconf/profile/user system-db:local

Check that the automount setting is locked from nonprivileged user modification with the following command:

Note: The example below is using the database "local" for the system, so the path is "/etc/dconf/db/local.d". This path must be modified if a database other than "local" is being used.

$ grep 'automount-open' /etc/dconf/db/local.d/locks/* /org/gnome/desktop/media-handling/automount-open

If the command does not return at least the example result, this is a finding.

Fix

Configure the GNOME desktop to not allow a user to change the setting that disables automated mounting of removable media.

Add the following line to "/etc/dconf/db/local.d/locks/00-security-settings-lock" to prevent user modification:

/org/gnome/desktop/media-handling/automount-open

Update the dconf system databases:

$ sudo dconf update

Identifiers

Group ID
V-271678
Group title
SRG-OS-000114-GPOS-00059
Rule ID
SV-271678r1091746_rule
Check ID
C-75728r1091744_chk
Fix ID
F-75635r1091745_fix