Re: Sniffing a windows domain authentication

[Facekhan <facekhan () gmail com>]

My understanding is that the passwords are not sent in plain text but 
are subjected to a one-way hash function (MD5, SHA-1 or something 
similar) and then sent to the PDC. The PDC also does not store passwords 
as plaintext but stores the hash. What is compared are the two hashes 
and if they match, then authentication is successful.

If you want something more interesting check out Diffie Helman key 
exchange, where two parties can decide on a shared secret over an 
insecure connection without exchanging the password itself.

l00t3r wrote:

> LC5 might do what your looking for.  I know they have an option to
> import network sniffer files but not sure if it will actually crack
> what your looking to do.  Might be worth looking into.
>
> Ryan
>
> On 16 Mar 2006 16:32:32 -0000, spambox () barrossecurity com
> <spambox () barrossecurity com> wrote:
>  
>
> > Hello list!
> > Sometime ago I was wondering if it is possible to
> > capture the authentication packets sent from a Windows Workstation to the PDC and then crack the password. I've setup this 
> > scenario in the lab environment and sniffer these packets, but did'n find any referece about cracking the password.. Any   
> > one knows how the authentication works, and if it can be broken??
> >
> > best regards
> >
> > Carlos Barros
> > http://www.barrossecurity.com/
> >
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vulnerability management needs. You have an option to go with a managed 
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