Aruba Mobility Controller running ArubaOS 3.3.1.16, and possibly other versions, installs the same default X.509 certificate for all installations, which allows remote attackers to bypass authentication. NOTE: this is only a vulnerability when the administrator does not follow recommendations in the product's security documentation.
http://www.securityfocus.com/bid/31336
http://www.securityfocus.com/archive/1/496622/100/0/threaded
http://www.securityfocus.com/archive/1/496604/100/0/threaded