Indusoft Thin Client allows access to Indusoft Web Studio projects without requiring Web Studio to be installed. It includes the ISSymbol ActiveX control, which is also included in Indusoft Web Studio and Advantech Studio.
A buffer overflow vulnerability allows command execution when a user loads a web page which invokes the ISSymbol ActiveX control with a long, specially crafted InternationalSeparator parameter.
Apply hotfix 70.1.02.12.
Exploit works on InduSoft Thin Client v7.0 build 70.1.0 on Windows XP SP3 and Windows 7 SP1 and requires a user to load the exploit page in Internet Explorer 8 or 9. JRE 6 must be installed on Windows 7.