This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the bwocxrun.ocx. The control exposes a scriptable method 'CreateProcess'. An attacker can exploit a flaw in the validation code within the method to execute arbitrary commands in the context of the browser.