CVE-2002-1888
CommonName Toolbar 3.5.2.0 sends unqualified domain name requests to the CommonName organization and possibly other web servers for name resolution, which allows those organizations to obtain internal server names.
Date published : 2005-06-28
http://www.securityfocus.com/bid/5878
http://archives.neohapsis.com/archives/bugtraq/2002-10/0043.html