Acresso InstallShield Update Agent does not properly verify the authenticity of Rule Scripts obtained from GetRules.asp web pages on FLEXnet Connect servers, which allows remote man-in-the-middle attackers to execute arbitrary VBScript code via Trojan horse Rules.
http://www.vupen.com/english/advisories/2008/2613
http://www.simplicity.net/vuln/CVE-2008-1093.txt
http://www.securitytracker.com/id?1020893
http://www.securityfocus.com/bid/31204
http://www.securityfocus.com/archive/1/496389/100/0/threaded
http://www.kb.cert.org/vuls/id/837092