RHEL 9 must prevent a user from overriding the disabling of the graphical user interface autorun function.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-258017 | RHEL-09-271035 | SV-258017r1045088_rule | CCI-000778 | medium |
| Description | ||||
| Techniques used to address this include protocols using nonces (e.g., numbers generated for a specific one-time use) or challenges (e.g., TLS, WS_Security). Additional techniques include time-synchronous or challenge-response one-time authenticators. Satisfies: SRG-OS-000114-GPOS-00059, SRG-OS-000378-GPOS-00163, SRG-OS-000480-GPOS-00227 | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2025-05-14 | |||
Details
Check Text (C-258017r1045088_chk)
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 ability of the user to override the graphical user interface autorun setting.
Determine which profile the system database is using with the following command:
$ gsettings writable org.gnome.desktop.media-handling autorun-never
false
If "autorun-never" is writable, the result is "true". If this is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.
Fix Text (F-61682r926037_fix)
Configure the GNOME desktop to not allow a user to change the setting that disables autorun on 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/autorun-never
Then update the dconf system databases:
$ sudo dconf update