(RADIATOR) Help setting up PEAP (with MSCHAP)
António Fernandes
afernandes at egp.up.pt
Wed Jun 22 04:46:35 CDT 2005
Hi Mike,
I already did. My first iteration was what you suggested:
(near the end of the e-mail appears)
> > AuthSelect SELECT NTLM, CONCAT(User,'@',Domain) AS
> > Username, VLAN
> > FROM users WHERE CONCAT(User,'@',Domain) = '%n' AND AccWiFi='1'
> > AuthColumnDef 0, Encrypted-Password, check
but it still doesn't work.
I suspected (still do) that it has something to do with Challenge process:
1 - Access-Request
2 - Access-Challenge (it's "EAP TTLS Challenge")
3 - Access-Request (switching to "EAP PEAP")
4 - Access-Challenge (this time it's PEAP)
5 - Access-Request
6 - ......
The strange part is that in the debug appears:
Radius::AuthSQL ACCEPT
but in the next line
EAP result: 1, EAP MSCHAP-V2 Authentication failure
Thank you again Mike,
Antonio Fernandes
Oporto Management School
Oporto University
-----Original Message-----
From: Mike McCauley [mailto:mikem at open.com.au]
Sent: terça-feira, 21 de Junho de 2005 23:55
To: António Fernandes
Cc: 'Hugh Irvine'; radiator at open.com.au
Subject: Re: (RADIATOR) Help setting up PEAP (with MSCHAP)
Hello Antonio,
I think the problem is that you have specified that the SQL nthash is to be
used as Encrypted-Password, but you have prefixed it with {nthash} as if it
were to be used as User-Password. If the passwords have {nthash} in front,
you should use User-Password like this:
AuthColumnDef 0, User-Password, check
Encryted-Pasword should only be used if there is no other indication that
the
password is encrypted.
Actually I would think it would be better if you had:
AuthSelect SELECT NTLM,\
CONCAT(User,'@',Domain) AS Username, VLAN FROM users where\
CONCAT(User,'@',Domain)='%n' AND AccWiFi='1'
AuthColumnDef 0, Encrypted-Password, check
and use the NTLM hash directly?
Your choice.
Cheers.
On Tuesday 21 June 2005 18:36, António Fernandes wrote:
> Hi Hugh,
>
> Thanks... I've done the changes but I can't seem to get it to work.
> Can you help me?
>
> Yours,
>
> Antonio Fernandes
> Oporto Management School
> Oporto University
>
>
>
>
> <AuthBy SQL>
> #identificador
> Identifier authby_MYSQL_PEAP_eu
> # No default
> NoDefault
> NoDefaultIfFound
> #EAP
> EAPType MSCHAP-V2
> EAPTLS_PEAPVersion 0
> # Definicao da BD
> DBSource dbi:mysql:EGP_Sistema:mysql.egp.up.pt
> DBUsername XXXXXXXX
> DBAuth XXXXXXXXX
> #SQL de acesso
> AuthSelect SELECT CONCAT('{nthash}',NTLM) AS NTLM,
> CONCAT(User,'@',Domain) AS Username, VLAN FROM users where
> CONCAT(User,'@',Domain)='%n' AND AccWiFi='1'
> AuthColumnDef 0, Encrypted-Password, check
> AuthColumnDef 1, User-Name, reply
> AuthColumnDef 2, Tunnel-Private-Group-ID, reply
> # Se nao tiver VLAN retorna para default
> AllowInReply Tunnel-Private-Group-ID
> AddToReplyIfNotExist Tunnel-Private-Group-ID = "1:5"
> AddToReply Tunnel-Type = "1:VLAN", Tunnel-Medium-Type
> = "1:Ether_802"
> # Only one session per user at a time
> DefaultSimultaneousUse 1
> </AuthBy>
> <Handler TunnelledByPEAP=1>
> RewriteUsername s/^([^@]+).*/$1/
> UsernameCharset a-zA-Z0-9\._\@-
> SessionDatabase NULL
> AuthByPolicy ContinueUntilAccept
> AuthBy authby_MYSQL_PEAP_eu
> # <AuthBy FILE>
> # RewriteUsername s/^([^@]+).*/$1/
> # Filename /etc/radiator/users_OK
> # EAPType MSCHAP-V2
> # AddToReply User-Name=%u
> # </AuthBy>
> AuthLog log_LocalUsers
> </Handler>
> <Handler Realm = /egp\.up\.pt.*/i>
> # Stripoff de realm
> RewriteUsername s/^([^@]+).*/$1/
> SessionDatabase NULL
> MaxSessions 1
> AuthByPolicy ContinueUntilAccept
> <AuthBy FILE>
> EAPType TTLS, PEAP, TLS
> EAPTLS_CAFile /etc/radiator/certEGP/EGP-ROOT-CA.crt
> EAPTLS_CertificateFile /etc/radiator/certEGP/radiator.pem
> EAPTLS_CertificateType PEM
> EAPTLS_PrivateKeyFile /etc/radiator/certEGP/radiator.pem
> EAPTLS_PrivateKeyPassword XXXXXXXXXX
> EAPTLS_MaxFragmentSize 1000
> AutoMPPEKeys
> SSLeayTrace 4
> </AuthBy>
> <Log SYSLOG>
> Facility radius
> </Log>
> </Handler>
>
>
>
>
>
>
> -----Original Message-----
> From: Hugh Irvine [mailto:hugh at open.com.au]
> Sent: sábado, 18 de Junho de 2005 15:06
> To: António Fernandes
> Cc: radiator at open.com.au
> Subject: Re: (RADIATOR) Help setting up PEAP (with MSCHAP)
>
>
> Hello Antonio -
>
> Radiator supports NT hash passwords with a prefix of "{nthash}".
>
> See section 13.1.1 in the Radiator 3.13 reference manual ("doc/
> ref.html").
>
> regards
>
> Hugh
>
> On 18 Jun 2005, at 19:46, António Fernandes wrote:
> > I'm currently using Radiator for wireless authentication (EAP-TTLS)
> > using
> > SecureW2 in WinXP SP2. Since the beginning I would also like to add
> > PEAP
> > using MSCHAP. The problem with MSCHAP comes with the need of clear
> > text
> > passwords. Recently I've came across with a FreeRadius
> > implementation that
> > allows to do MSCHAP authentication using NTLM style passwords (NT/LM
> > hashes). I understand that NTLM are reversible and if so, it should
> > work
> > also with Radiator?
> >
> > Is this possible with Radiator? I tried to get passwords from the
> > MySQL with
> > no success. When the password is in plain text it works fine but
> > when I
> > change it to NTLM it rejects...
> >
> > Any ideas?
> >
> >
> > Yours,
> >
> > Antonio Fernandes
> > Oporto Management School
> > Oporto University
> >
> >
> >
> >
> > Config:
> > <AuthBy SQL>
> > #identifier
> > Identifier authby_MYSQL_PEAP_eu
> > # No default
> > NoDefault
> > NoDefaultIfFound
> > #EAP
> > EAPType MSCHAP-V2
> > # DB
> > DBSource dbi:mysql:XXXXX:XXXXXX
> > DBUsername XXXXXX
> > DBAuth XXXXXXX
> > # SQL
> > AuthSelect SELECT NTLM, CONCAT(User,'@',Domain) AS
> > Username, VLAN
> > FROM users WHERE CONCAT(User,'@',Domain) = '%n' AND AccWiFi='1'
> > AuthColumnDef 0, Encrypted-Password, check
> > AuthColumnDef 1, User-Name, reply
> > AuthColumnDef 2, Tunnel-Private-Group-ID, reply
> > AddToReply Tunnel-Type = "1:VLAN", Tunnel-Medium-Type =
> > "1:Ether_802"
> > # Only one session per user at a time
> > DefaultSimultaneousUse 1
> > </AuthBy>
> > <Handler TunnelledByPEAP=1, Client-Identifier=LocaL>
> > UsernameCharset a-zA-Z0-9\._\@-
> > SessionDatabase NULL
> > AuthBy authby_MYSQL_PEAP_eu
> > </Handler>
> > <Handler Realm = /egp\.up\.pt.*/i>
> > # Stripoff de realm
> > RewriteUsername s/^([^@]+).*/$1/
> >
> > SessionDatabase NULL
> >
> > MaxSessions 1
> > <AuthBy FILE>
> > EAPType TTLS, PEAP, TLS
> > EAPTLS_CAFile /etc/radiator/certEGP/EGP-ROOT-CA.crt
> > EAPTLS_CertificateFile /etc/radiator/certEGP/
> > radiator.pem
> > EAPTLS_CertificateType PEM
> > EAPTLS_PrivateKeyFile /etc/radiator/certEGP/
> > radiator.pem
> > EAPTLS_PrivateKeyPassword XXXXXXXXXXXX
> > EAPTLS_MaxFragmentSize 1000
> > AutoMPPEKeys
> > SSLeayTrace 4
> > </AuthBy>
> > <Log SYSLOG>
> > Facility radius
> > </Log>
> > </Handler>
> >
> >
> >
> >
> >
> > Snipet.... (http://forum.chupa.nl/showthread.php?t=1141&page=3)
> >
> > passwd etc_smbpasswd_with_domain {
> > filename = /opt/etc/smbpasswd
> > format = "*Stripped-User-Name:NT-Password"
> > authtype = MS-CHAP
> > hashsize = 100
> > ignorenislike = no
> > allowmultiplekeys = no
> > }
> >
> > My "smbpasswd" (far from it now) looks like this:
> > # Sample smbpasswd file.
> > # To use this, set 'encrypt passwords = yes' in the [global]-section
> > # of /etc/smb.conf
> > Tommy:NTLMPASS
> > Connie:NTLMPASS
> > PocketPC:NTLMPASS
>
> NB: I am travelling this week, so there may be delays in our
> correspondence.
--
Mike McCauley mikem at open.com.au
Open System Consultants Pty. Ltd Unix, Perl, Motif, C++, WWW
9 Bulbul Place Currumbin Waters QLD 4223 Australia http://www.open.com.au
Phone +61 7 5598-7474 Fax +61 7 5598-7070
Radiator: the most portable, flexible and configurable RADIUS server
anywhere. SQL, proxy, DBM, files, LDAP, NIS+, password, NT, Emerald,
Platypus, Freeside, TACACS+, PAM, external, Active Directory, EAP, TLS,
TTLS, PEAP etc on Unix, Windows, MacOS etc.
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