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Re: NOD32 Antivirus Long Path Name Stack Overflow Vulnerabilities

from [v9] Network Security [Permanent Link]
Subject: Re: NOD32 Antivirus Long Path Name Stack Overflow Vulnerabilities
Date: 23 May 2007 00:11:29 -0000 
Although the vulnerabilities are hard to exploit, > it's not impossible.
There are some restrictions to bypass:

- The path name is formated in Unicode, so we have to find an opcode in an 
address with an unicode format
- The shellcode has to be in the path name so we have to use an Alphanumeric 
shellcode


What's to stop someone from encoding the path(shellcode) in unicode(using both 
bytes of unicode/no null bytes)? Also, is there a special situation why it has 
to be strictly alphanumeric? Because, in general this is not the case.

I've worked with these guidelines myself in the 
past(http://fakehalo.us/xfinder-ds.pl), and I see no specific issue with doing 
similar for this, unless information to the contrary isn't included.
[More messages with this same subject...]




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