OL 9 must disable the user list at logon for graphical user interfaces.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-271672 | OL09-00-002102 | SV-271672r1092631_rule | CCI-000366 | medium |
| 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. | ||||
| STIG | Date | |||
| Oracle Linux 9 Security Technical Implementation Guide | 2025-05-08 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-6
1.00
- DISA · 1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.4.1
1.00
- DISA · 1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.4.2
1.00
- DISA · 1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000366
1.00
- DISA · 1 · disa_xccdf · related
Details
Check Text (C-271672r1092631_chk)
This requirement assumes the use of the OL 9 default graphical user interface—the GNOME desktop environment. If the system does not have any graphical user interface installed, this requirement is Not Applicable.
Verify that OL 9 disables the user logon list for graphical user interfaces with the following command:
$ gsettings get org.gnome.login-screen disable-user-list
true
If the setting is "false", this is a finding.
Fix Text (F-75629r1092630_fix)
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