Cisco Secure Services Client (CSSC) 4.x, Trust Agent 1.x and 2.x, Cisco Security Agent (CSA) 5.0 and 5.1 (when a vulnerable Trust Agent has been deployed), and the Meetinghouse AEGIS SecureConnect Client use an insecure default Discretionary Access Control Lists (DACL) for the connection client GUI, which allows local users to gain privileges by injecting "a thread under ConnectionClient.exe," aka CSCsg20558.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32625
http://www.vupen.com/english/advisories/2007/0690
http://www.securitytracker.com/id?1017684
http://www.securitytracker.com/id?1017683
http://www.securityfocus.com/bid/22648
http://www.cisco.com/warp/public/707/cisco-sa-20070221-supplicant.shtml