Re: Re: 3COM TFTPD Overflow: SEH Overwrite

[email protected] Fri, 08 Feb 2008 10:08:40 +0100
Newsgroups gmane.comp.security.vulnerabilities
Message-ID <[email protected]>
Quoting [email protected]:

> I was asking if ws2_32.dll was compiled with SafeSEH (didn't know    
> about the Olly plugin).  Regarding the return address...I already    
> have control of EIP, but can't point it directly to the stack, so    
> I'm searching for a module with a suitable return address (with    
> pop/pop/ret) to help me get back to that buffer.  The issue was with  
>   the return address I was pointing to, and the fact that it the    
> module was compiled with SafeSEH.  Is that enough detail?
>


Nope, you didn't answer my question regarding the vulnerability you
are trying to exploit. If it turns out to be the transporting mode
issue, than the best place to look for a working return address is the
binary itself. Very reliable and still enough space for the shellcode.

regards
-S

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