The web interface in Cisco Secure Access Control System (ACS) 5.x before 5.4 Patch 3 allows remote attackers to execute arbitrary operating-system commands via a request to this interface, aka Bug ID CSCue65962.
https://exchange.xforce.ibmcloud.com/vulnerabilities/90432
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-0681
http://tools.cisco.com/security/center/viewAlert.x?alertId=32380
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140115-csacs