AlmaLinux OS 9 must disable the graphical user interface automount function unless required.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269377 | ALMA-09-034890 | SV-269377r1050260_rule | Medium |
| Description |
| Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity. Satisfies: SRG-OS-000378-GPOS-00163, SRG-OS-000114-GPOS-00059 |
| STIG | Date |
| CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide | 2025-05-22 |
Details
| Check Text (C-73408r1049581_chk) |
| Note: This requirement assumes the use of the AlmaLinux OS 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 AlmaLinux OS 9 disables the graphical user interface automount function with the following command: $ gsettings get org.gnome.desktop.media-handling automount-open false If "automount-open" is set to "true", and is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding. |
| Fix Text (F-73309r1048508_fix) |
| Configure the GNOME desktop to disable automated mounting of removable media. The dconf settings can be edited in the /etc/dconf/db/* location. Update the [org/gnome/desktop/media-handling] section of the "/etc/dconf/db/local.d/00-security-settings" database file and add or update the following lines: [org/gnome/desktop/media-handling] automount-open=false Then update the dconf system databases: $ dconf update |