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The Oracle Linux operating system must disable the graphical user interface automounter unless required.


Overview

Finding ID Version Rule ID IA Controls Severity
V-228567 OL07-00-020111 SV-228567r853730_rule Medium
Description
Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity. Satisfies: SRG-OS-000114-GPOS-00059, SRG-OS-000378-GPOS-00163, SRG-OS-000480-GPOS-00227
STIG Date
Oracle Linux 7 Security Technical Implementation Guide 2023-12-01

Details

Check Text ( C-36333r602592_chk )
Note: If the operating system does not have a graphical user interface installed, this requirement is Not Applicable.

Verify the operating system disables the ability to automount devices in a graphical user interface.

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.

Check to see if automounter service is disabled with the following commands:
# cat /etc/dconf/db/local.d/00-No-Automount

[org/gnome/desktop/media-handling]

automount=false

automount-open=false

autorun-never=true

If the output does not match the example above, this is a finding.

# cat /etc/dconf/db/local.d/locks/00-No-Automount

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

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

/org/gnome/desktop/media-handling/autorun-never

If the output does not match the example, this is a finding.
Fix Text (F-36296r602593_fix)
Configure the graphical user interface to disable the ability to automount devices.

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.

Create or edit the /etc/dconf/db/local.d/00-No-Automount file and add the following:

[org/gnome/desktop/media-handling]

automount=false

automount-open=false

autorun-never=true

Create or edit the /etc/dconf/db/local.d/locks/00-No-Automount file and add the following:
/org/gnome/desktop/media-handling/automount

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

/org/gnome/desktop/media-handling/autorun-never

Run the following command to update the database:

# dconf update