Symantec AppStream 5.2.x and Symantec Workspace Streaming (SWS) 6.1.x before 6.1 SP4 do not properly perform authentication, which allows remote Workspace Streaming servers and man-in-the-middle attackers to download arbitrary executable files onto a client system, and execute these files, via unspecified vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/59504
http://www.vupen.com/english/advisories/2010/1511
http://www.securityfocus.com/bid/40611