Any X Windows host must write .Xauthority files.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-850	GEN005160	SV-850r2_rule	ECCD-1 ECCD-2	Medium

Description
.Xauthority files ensure the user is authorized to access the specific X Windows host. If .Xauthority files are not used, it may be possible to obtain unauthorized access to the X Windows host.

STIG	Date
Solaris 10 X86 Security Technical Implementation Guide	2014-04-04

Details

Check Text ( C-718r2_chk )
Check for .Xauthority files being utilized by looking for such files in the home directory of a user that uses X. Procedure: # cd ~someuser # ls -la .Xauthority If the .Xauthority file does not exist, ask the SA if the user is using X Windows. If the user is utilizing X Windows and the .Xauthority file does not exist, this is a finding.

Fix Text (F-1004r2_fix)
Ensure the X Windows host is configured to write .Xauthority files into user home directories. Edit the Xaccess file. Ensure the line that writes the .Xauthority file is uncommented.