RHEL 9 must disable the user list at logon for graphical user interfaces.
An XCCDF Rule
Description
Leaving the user list enabled is a security risk since it allows anyone with physical access to the system to enumerate known user accounts without authenticated access to the system.
- ID
- SV-258033r1045120_rule
- Version
- RHEL-09-271115
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Configure RHEL 9 to disable the user list at logon for graphical user interfaces.
Create a database to contain the systemwide screensaver settings (if it does not already exist) with the following command:
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.
$ sudo touch /etc/dconf/db/local.d/02-login-screen