escalating IUSR to admin rights via unicode and iis4

From: ewvtwvi@hushmail.com
Date: Tue Jul 09 2002 - 13:18:15 EDT


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Hello,

 I understand that this topic has been discussed in great deal, however i searched the archives and was unable to find anything.

 In doing a security assessment - I came across a web server running iis4 that is vulnerable to the unicode exploit. I was able to get it to tftp back to my tftp server and pull down nc and a few other things...then got nc listening with a shell and was able to connect to that shell...I didnt go any further and reported it as it was. I was then questioned on the possibility of it being used to escalate rights to administrator..and asked for a demo... i repeated the above steps, but was unable to stop services and such. I couldnt even delete a file I had uploaded using unicode with tftp.
 Could someone please point me to info that would explain what i have to do to
accomplish this. I have been searching...but apparently not well enough.

Again, I hope this gets through..As it has prolly been discussed very much. I apologize in advance for this question.. but im stuck :(

Thanks much!
t
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