> Am I going about this the wrong way?

Yes, yes you are.

#1) You will REALLY want to check your local laws, you may have just committed 
from a class B misdemeanor to a class C felony. Here is a link for states in 
the US:
http://www.irongeek.com/i.php?page=computerlaws/state-hacking-laws

#2) It is almost always simpler to get the user to reset their password

#3) A tcp dump will not give you all the info you need to crack a PW depending 
on the encryption method in use.

To summarize:

Don't crack user's passwords without the backing of a bunch of high paid 
lawyers and metric ton of signed notarized paperwork saying that the parties 
involved have given you specific permission to do so.

Jake Sallee
Godfather of Bandwidth
System Engineer
University of Mary Hardin-Baylor
900 College St.
Belton TX. 76513
Fone: 254-295-4658
Phax: 254-295-4221
HTTP://WWW.UMHB.EDU

From: freeradius-users-bounces+jake.sallee=umhb....@lists.freeradius.org 
[mailto:freeradius-users-bounces+jake.sallee=umhb....@lists.freeradius.org] On 
Behalf Of Chris Taylor
Sent: Friday, November 9, 2012 1:37 PM
To: [email protected]
Subject: Best way to capture RADIUS passwords

I am migrating from one RADIUS setup that checks against a flat file with 
usernames and passwords inside it . Over to a RADIUS server with and LDAP 
backend. I have used JTR to crack most of the passwords but I still have some 
left over that JTR cant crack.

I was thinking of trying to run a packet capture to get the remaining usernames 
and passwords. What would be the best way to do this? Run RADIUS in debug mode 
Radius -X? Or try to use tcpdump and pick it up that way or is it even possible 
to do? I have been trolling the internet for a few days and have not come up 
with a good way to do it.

I setup tcpdump to dump to a file (tcpdump -i eth0 -n -s0 port radius -w 
rad-capture.lpc) , but when I check it out with wireshark I am unable to see 
the password (just the username). Am I going about this the wrong way?

Thanks,

Chris


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