The triggers functionality in Perforce Server 2008.1 allows remote authenticated users with super privileges to execute arbitrary operating-system commands by using a "p4 client" command in conjunction with the form-in trigger script.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-0959
http://www.securityfocus.com/bid/36261
http://lists.immunitysec.com/pipermail/dailydave/2010-March/006063.html