By design the F5 BIG-IP web management interface allows a logged-in user with Resource Manager or Administrator privileges to execute an arbitrary bigpipe shell command through the web "Console" feature. It is possible to craft URL links that would execute the command with a simple HTTP GET request. Cross-site attacks may leverage this functionality to reconfigure the BIG-IP appliance, including creating new administrators.

http://www.securiteam.com/securitynews/5NP0F0UNGO.html