RHEL-10-700840 - RHEL 10 must disable the user list at login for graphical user interfaces.

Information

Leaving the user list enabled is a security risk because it allows anyone with physical access to the system to enumerate known user accounts without authenticated access to the system.

Solution

Configure RHEL 10 to disable the user list at login for graphical user interfaces.

Note: The example below is using the database "local" for the system. If the system is using another database in "/etc/dconf/profile/user", the file should be created under the appropriate subdirectory.

Create a database to contain the systemwide screensaver settings (if it does not already exist) with the following command:

$ sudo vi /etc/dconf/db/local.d/02-login-screen

[org/gnome/login-screen]
disable-user-list=true

Update the system databases:

$ sudo dconf update

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_RHEL_10_V1R1_STIG.zip