The .Xauthority files must not have extended ACLs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-216310 | SOL-11.1-020520 | SV-216310r959010_rule | Medium |
| Description |
| .Xauthority files ensure the user is authorized to access the specific X Windows host. Extended ACLs 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 SPARC Security Technical Implementation Guide | 2025-05-05 |
Details
| Check Text (C-17546r371018_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. # ls -lL .Xauthority If the permissions include a "+", the file has an extended ACL and this is a finding. |
| Fix Text (F-17544r371019_fix) |
| Remove the extended ACL from the file. # chmod A- .Xauthority |