Detections
Analytics

1.236 OL09-00-002102

Information

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

GROUP ID: V-271672
RULE ID: SV-271672r1092631

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 OL 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.

$ sudo touch /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://workbench.cisecurity.org/benchmarks/27024

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CCI|CCI-000366, Rule-ID|SV-271672r1092631_rule, STIG-ID|OL09-00-002102, Vuln-ID|V-271672

Plugin: Unix

Control ID: a70d1adaebb981826d29a86268784e0c33c1be38bc07518115331d56445a66d6