ldap auto header MS-CHAPv2

nf-vale nf-vale at critical-links.com
Mon Mar 15 15:37:39 CET 2010


On Monday 15 March 2010 13:42:11 Alan Buxey wrote:
> Hi,
> 
> > no i don't have AD.
> >
> > in other word, i cannot use windows xp supplicant  EAP-MSCHAPv2 to make
> > the authentication protocol to authenticate users in openldap database
> > using ssha1 password, that's right?
> 
> correct: http://deployingradius.com/documents/protocols/oracles.html
> 
> 
> PEAPv0/MS-CHAPv2 requires MSCHAPv2 - thats challenge response.
> 
> 
> the client never supplies the real password - therefore you cannot compare
> to a password stored in LDAP.
> 
> 
> what you need to use is an EAP method that uses PAP....eg EAP-TTLSv0/PAP

You can use EAP-PEAP as long as you store also samba NT/LM hashes in LDAP 
(sambaLMPassword and sambaNTPassword). If you have these hashes you may use 
Windows XP built-in supplicant.

> 
> try using a supplicant on the windows machine that gives you this eg
> 
> http://open1x.sourceforge.net/
> 
> http://www.securew2.com/
> 
> ...or grab a Mac OSX machine to do further testing - they have TTLS/PAP
> support natively.
> 
> 
> alan
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