Detections
Analytics

OL09-00-002102 - OL 9 must disable the user list at logon for graphical user interfaces.

Information

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://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Oracle_Linux_9_V1R6_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

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

Plugin: Unix

Control ID: f2046c1e5f3354b0a7ff05a01947466ccbe4ab35b8fad98c0d6d67d9dc6dd82e