Detections
Analytics

1.104 ALMA-09-014430

Information

AlmaLinux OS 9 must disable the user list at logon for graphical user interfaces.

GROUP ID: V-269207
RULE ID: SV-269207r1050089

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.

Solution

Configure AlmaLinux OS 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, so if the system is using another database in "/etc/dconf/profile/user", the file should be created under the appropriate subdirectory.

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

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

Update the system databases:

$ dconf update

See Also

https://workbench.cisecurity.org/benchmarks/27039

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CCI|CCI-000366, Rule-ID|SV-269207r1050089_rule, STIG-ID|ALMA-09-014430, Vuln-ID|V-269207

Plugin: Unix

Control ID: f6531745aec51f0fb0bcfa82eb245b38ebafee19f3c9ff7472aecfd2a58f87b1