On Friday 25 July 2003 09:14, Federico Sevilla III wrote:
> Just note that SMB isn't really secure, either. Most setups (not saying
> all because I don't know how the newer authentication things work) will
> have passwords sent in NT4 hashes going over the wire, and from what
> I've read NT4 hashes are "good as plaintext". 

yeah, i saw a thread on that in full-disclosure the last few days.  the gist
was that windows (didn't specify, but i assume SMB hashed passwords
so they're sniffable) don't have a salt, so they're always the same hash
going over the wire and (worse) the same password on any windows
box hashes to the same hash, so it's possible to pre-calculate hashes.  
another recent exploit involved editing the samba source (or a handcrafted
program that sends the samba password) to send the sniffed hash (instead 
of calculating the hash from the user's password).

>You have to trust your local network with these things.

i guess so, but see, i don't trust myself, let alone anyone else.  but
seriously, i prefer not to leave things to trust if it's not necessary.
e.g., in any company, there will ALWAYS be a motivated person who
will want to sneak a look into the accounting/personnel/salary
information.

> Luckily, a number of projects that aim to fix the security problems of
> NFS exist. The most obvious is SFS[1] which stands for "Self-Certifying
> File System". 

thanks!  that's very interesting.  i'm definitely looking into that :).

tiger

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