Cisco Cloud Services Platform (CSP) 2100 2.0 allows remote attackers to execute arbitrary code via a crafted dnslookup command in an HTTP request, aka Bug ID CSCuz89093.
http://www.securitytracker.com/id/1036864
http://www.securityfocus.com/bid/93095
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160921-csp2100-2