RHEL 9 must disable the graphical user interface automount function unless required.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-258014 | SRG-OS-000114-GPOS-00059 | RHEL-09-271020 | SV-258014r1045084_rule | 2025-02-27 | 2 |
| 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 |
| ℹ️ Check |
|---|
| Note: This requirement assumes the use of the RHEL 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 RHEL 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 |
|---|
| 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: $ sudo dconf update |