.Xauthority or X*.hosts (or equivalent) file(s) must be used to restrict access to the X server.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-216077 | SOL-11.1-020540 | SV-216077r959010_rule | CCI-000297 | medium |
| Description | ||||
| If access to the X server is not restricted, a user's X session may be compromised. | ||||
| STIG | Date | |||
| Solaris 11 X86 Security Technical Implementation Guide | 2025-05-05 | |||
Details
Check Text (C-216077r959010_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
Determine if xauth is being used.
Procedure:
# xauth
xauth> list
If the above command sequence does not show any host other than the localhost, then xauth is not being used.
Search the system for an X*.hosts files, where * is a display number that may be used to limit X window connections.
If no files are found, X*.hosts files are not being used.
If the X*.hosts files contain any unauthorized hosts, this is a finding.
If both xauth and X*.hosts files are not being used, this is a finding.
Fix Text (F-17313r372614_fix)
Create an X*.hosts file, where * is a display number that may be used to limit X window connections.
Add the list of authorized X clients to the file.