All .Xauthority files must have mode 0600 or less permissive.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-216074 | SOL-11.1-020510 | SV-216074r959010_rule | CCI-000366 | medium |
| Description | ||||
| .Xauthority files ensure the user is authorized to access the specific X Windows host. Excessive permissions may permit unauthorized modification of these files, which could lead to Denial of Service to authorized access or allow unauthorized access to be obtained. | ||||
| STIG | Date | |||
| Solaris 11 X86 Security Technical Implementation Guide | 2025-05-05 | |||
Details
Check Text (C-216074r959010_chk)
If X Display Manager (XDM) is not used on the system, this is not applicable.
Determine if XDM is running.
Procedure:
# ps -ef | grep xdm
Check the file permissions for the .Xauthority files in the home directories of users of X. Procedure:
# cd ~<X user>
# ls -lL .Xauthority
If the file mode is more permissive than 0600, this is finding.
Fix Text (F-17310r372605_fix)
Change the mode of the .Xauthority files.
Procedure:
# chmod 0600 .Xauthority