GEN005220 - .Xauthority or X*.hosts (or equivalent) file(s) must be used to restrict access to the X server.

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Information

If access to the X server is not restricted, a user's X session may be compromised.
NOTE: Nessus has not performed this query, and this check is only provided for informational purposes.

Solution

Create an X*.hosts file, where '*' is a display number used to limit X window connections. Add the list of authorized X clients to the file.

See Also

http://iasecontent.disa.mil/stigs/zip/U_RedHat_5_V1R17_STIG.zip