[Samba] sambar4: user creation with ldap and initial password

[Andrew Bartlett]

On Mon, 2012-11-05 at 08:18 +0100, Thomas Mueller wrote:
> Am 05.11.2012 04:31, schrieb Andrew Bartlett:
> > On Thu, 2012-11-01 at 12:44 +0000, Thomas Mueller wrote:
> >> hi
> >>
> >> trying to create a user with ldap from a remote server. The user is
> >> created successfully. I'm failing setting the initial password.
> >>
> >> Setting the unicodePwd with kerberos administrator credentials with
> >> ldbmodify and the ldif below results in "00002035: setup_io: it's not
> >> allowed to set the NT hash password directly".
> >>
> >> searching the web I've found s4 mailinglist entries telling "do not set
> >> unicodePwd with ldap".  this KB article tells in AD it's possible to set
> >> it:  http://support.microsoft.com/kb/263991/en-us
> >>
> >> Is there a supported method to supply the initial user password with s4
> >> and ldap?
> >>
> >> - Thomas
> >>
> >> LDIF:
> >> dn: CN=Thomas Mueller,OU=Users,DC=test,DC=testing
> >> changetype: modify
> >> replace: unicodePwd
> >> unicodePwd:: $IlRlc3QxMjMtLSIK
> > To set it via unicodePwd, you need to have it as UTF16, not ascii/utf8.
> i was using the following command to address this utf16-le requirement:
> 
> echo \"PASSWORD\" | iconv -t UTF16LE | base64

Either way, the base64 string just doesn't look long enough for that.

This seems closer:
//4iAFQAZQBzAHQAMQAyADMALQAtACIA

> > See however the userPassword, which is a normal, utf8 unquoted string
> > (ie, sane :-)
> Just tried it. Problems:
> 
> 1) the userPassword attribute is plaintext readable with ldap afterwards
> 2)  the kerberos password is not set ("kinit user" fails)

You may not have the userPassword feature enabled.  It's odd that we let
it stick in ldap however - can you confirm exactly what AD does here, so
I can match it?

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org