All .Xauthority files must have mode 0600 or less permissive.

From Solaris 11 X86 Security Technical Implementation Guide

Part of SRG-OS-999999

Associated with: CCI-000225

SV-75473r1_rule All .Xauthority files must have mode 0600 or less permissive.

Vulnerability discussion

.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.

Check content

If X Windows is not used on the system, this is not applicable. Check the file permissions for the .Xauthority files in the home directories of users of X. Procedure: # cd ~ # ls -lL .Xauthority If the file mode is more permissive than 0600, this is finding.

Fix text

Change the mode of the .Xauthority files. Procedure: # chmod 0600 .Xauthority

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