Problem with MSCHAP

[Mark Holmes]

Alan,

Thanks for your reply.

>how are you testing this - a real client, command line tool etc?  when you run it in full
>debug mode - and you arent helping yourself by failing to post that here

I'm testing with a real client and access point.

OK - I wasn't sure posting the whole debug would be appreciated, but I have posted it at

http://www.nuffield.ox.ac.uk/scratch/debug-log-2.txt

> you should see the incantation of the ntlm_auth line - if not, then it's not being called

I can only see two references to ntlm_auth, this:-


Module: Instantiating ntlm_auth
  exec ntlm_auth {
	wait = yes
	program = "/usr/bin/ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{mschap:User-Name} --password=%{User-Password}"
	input_pairs = "request"
	shell_escape = yes
  }

And another line indicating the ntlm_auth config file is being included:-

including configuration file /etc/raddb/modules/ntlm_auth

Should I also see ntlm_auth being called during the authentication - presumably I should...

Thanks,

Mark


-----Original Message-----
From: freeradius-users-bounces+mark.holmes=nuffield.ox.ac.uk at lists.freeradius.org [mailto:freeradius-users-bounces+mark.holmes=nuffield.ox.ac.uk at lists.freeradius.org] On Behalf Of Alan Buxey
Sent: 12 October 2010 10:41
To: FreeRadius users mailing list
Subject: Re: Problem with MSCHAP

Hi,

> I've pasted my debug output into the web tool and it picks out the following in red
> 
> security {
>         max_attributes = 200
>         reject_delay = 1 (This line in red)
>         status_server = yes
>  }
> 
> 
> (all in red)
> Module: Instantiating attr_filter.access_reject
>   attr_filter attr_filter.access_reject {
>         attrsfile = "/etc/raddb/attrs.access_reject"

ignore those - the word 'reject' is being flagged without context.

> [pap] WARNING! No "known good" password found for the user.  Authentication may fail because of this. (In yellow)

okay.

> I also see (not highlighted) that I'm still getting
> 
> [mschap] No Cleartext-Password configured.  Cannot create LM-Password.
> [mschap] No Cleartext-Password configured.  Cannot create NT-Password.
> [mschap] Told to do MS-CHAPv2 for holmes at mydomain.ox.ac.uk with NT-Password
> [mschap] FAILED: No NT/LM-Password.  Cannot perform authentication.
> [mschap] FAILED: MS-CHAP2-Response is incorrect

and that will mean that MSCHAPv2 wont be working

> I have configured modules/mschap to use ntlm_auth as follows
> 
> ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --username=%{mschap:User-Name:-None} --domain=%{%{mschap:NT-Domain}:-MYDOMAIN} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
> 
> Am I missing something in the MSCHAP config?

how are you testing this - a real client, command line tool etc?  when you run it in full
debug mode - and you arent helping yourself by failing to post that here - you should
see the incantation of the ntlm_auth line - if not, then its not being called...and it
would be with the default configuration files.

alan
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