The command line administration interface in Data Domain OS before 4.0.3.6 allows remote authenticated users to execute arbitrary commands via shell metacharacters in certain arguments to various commands, as demonstrated by the interface argument to the (1) ifconfig and (2) ping commands.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33291
http://www.securityfocus.com/bid/23182
http://www.securityfocus.com/archive/1/464085/100/0/threaded
http://securityreason.com/securityalert/2516