Hi,
I think I've found the problem with the non-plain ldap authentication.
I tried DIGEST-MD5 authentication with LDAP, and it also failed when the password in LDAP wasn't in PLAIN. It seems that if the password in LDAP wasn't PLAIN, then instead of providing a copy of the encrypted password onwards, the password cached inside auth_request was being used. This meant that it was being cleared a bit later in auth_request_handle_passdb_callback, before being passed to the mech-??? callbacks.
By the time verification was attempted, it was done with a blank password.
Lior
On 3/7/06, Andrey Panin <pazke@donpac.ru> wrote:
On 066, 03 07, 2006 at 10:04:38AM +0200, Lior Okman wrote:
I applied the patch, and retried the NTLM in LDAP authentication.
Here are the additional entries from the log:
Mar 7 09:58:47 office dovecot: auth(default): client in: AUTH^I1^INTLM^Iservice=IMAP^Isecured^Ilip=x.x.x.x^Irip=x.x.x.x Mar 7 09:58:47 office dovecot: auth(default): client out: CONT^I1^I Mar 7 09:58:47 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:47 office dovecot: auth(default): client out: CONT^I1^ITlRMTVNTUAACFAKADAABADAAAAAFAooAeOC7i82KuAcAAWRONGAAABQAFAA8AAAAbwBmAGYAaQBjAGUAAwAMAG8AZgBmAGkAYwBlAAAAAAA= Mar 7 09:58:47 office dovecot: auth(default): client in: AUTH^I1^INTLM^Iservice=IMAP^Isecured^Ilip=x.x.x.x^Irip=x.x.x.x Mar 7 09:58:47 office dovecot: auth(default): client out: CONT^I1^I Mar 7 09:58:47 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:47 office dovecot: auth(default): client out: CONT^I1^ITlRMTVNTUAACAABADAAFAKEAAAAFAooAlM4BWKmQWTMAWRONGAAAABQAFAA8AAAAbwBmAGYAaQBjAGUAAwAMAG8AZgBmAGkAYwBlAAAAAAA= Mar 7 09:58:47 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:47 office dovecot: auth(default): ldap(lior,x.x.x.x): base=dc=example,dc=com scope=subtree filter=(&(objectClass=sambaSamAccount)(uid=lior)) fields=uid,sambaNTPassword Mar 7 09:58:47 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:47 office dovecot: auth(default): ldap(lior,x.x.x.x): base=dc=example,dc=com scope=subtree filter=(&(objectClass=sambaSamAccount)(uid=lior)) fields=uid,sambaNTPassword Mar 7 09:58:47 office dovecot: auth(default): ldap(lior,x.x.x.x): uid(user)=lior sambaNTPassword(password)=<valid NTLM hash> Mar 7 09:58:47 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm creds:
Ooops... <valid NTLM hash> should be shown here too. Timo, we probably need your help.
Mar 7 09:58:47 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm negotiated Mar 7 09:58:47 office dovecot: auth(default): ntlm(lior,x.x.x.x): performing ntlm2 authetication Mar 7 09:58:47 office dovecot: auth(default): ldap(lior,x.x.x.x): uid(user)=lior sambaNTPassword(password)=<valid NTLM hash> Mar 7 09:58:47 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm creds:
And here too.
Mar 7 09:58:47 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm negotiated Mar 7 09:58:47 office dovecot: auth(default): ntlm(lior,x.x.x.x): performing ntlm2 authetication Mar 7 09:58:48 office dovecot: auth(default): client out: FAIL^I1^Iuser=lior Mar 7 09:58:48 office dovecot: auth(default): client out: FAIL^I1^Iuser=lior Mar 7 09:58:48 office dovecot: auth(default): client in: AUTH^I2^INTLM^Iservice=IMAP^Isecured^Ilip=x.x.x.x^Irip=x.x.x.x Mar 7 09:58:48 office dovecot: auth(default): client out: CONT^I2^I Mar 7 09:58:48 office dovecot: auth(default): client in: AUTH^I2^INTLM^Iservice=IMAP^Isecured^Ilip=x.x.x.x^Irip=x.x.x.x Mar 7 09:58:48 office dovecot: auth(default): client out: CONT^I2^I Mar 7 09:58:48 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:48 office dovecot: auth(default): client out: CONT^I2^ITlRMTVNTUAACAAAADAABADAaAAAAFAooALL2N8pBm8n4AAFAKEAAABQAFAA8AAAAbwBmAGYAaQBjAGUAAwAMAG8AZgBmAGkAYwBlAAAAAAA= Mar 7 09:58:48 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:48 office dovecot: auth(default): ldap(lior,x.x.x.x): base=dc=example,dc=com scope=subtree filter=(&(objectClass=sambaSamAccount)(uid=lior)) fields=uid,sambaNTPassword Mar 7 09:58:48 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:48 office dovecot: auth(default): client out: CONT^I2^ITlRMTVNTUAACAABADAABADAAAAAFAooAXljMNOEfMmcAWRONGAAAABQAFAA8AAAAbwBmAGYAaQBjAGUAAwAMAG8AZgBmAGkAYwBlAAAAAAA= Mar 7 09:58:48 office dovecot: auth(default): ldap(lior,x.x.x.x): uid(user)=lior sambaNTPassword(password)=<valid NTLM hash> Mar 7 09:58:48 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm creds: Mar 7 09:58:48 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm negotiated Mar 7 09:58:48 office dovecot: auth(default): ntlm(lior,x.x.x.x): performing ntlm2 authetication Mar 7 09:58:48 office dovecot: auth(default): client in: CONT<hidden> Mar 7 09:58:48 office dovecot: auth(default): ldap(lior,x.x.x.x): base=dc=example,dc=com scope=subtree filter=(&(objectClass=sambaSamAccount)(uid=lior)) fields=uid,sambaNTPassword Mar 7 09:58:48 office dovecot: auth(default): ldap(lior,x.x.x.x): uid(user)=lior sambaNTPassword(password)=<valid NTLM hash> Mar 7 09:58:48 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm creds: Mar 7 09:58:48 office dovecot: auth(default): ntlm(lior,x.x.x.x): ntlm negotiated Mar 7 09:58:48 office dovecot: auth(default): ntlm(lior,x.x.x.x): performing ntlm2 authetication Mar 7 09:58:50 office dovecot: auth(default): client out: FAIL^I2^Iuser=lior Mar 7 09:58:50 office dovecot: auth(default): client out: FAIL^I2^Iuser=lior Mar 7 09:58:50 office dovecot: auth(default): client in: AUTH^I3^INTLM^Iservice=IMAP^Isecured^Ilip=x.x.x.x^Irip=x.x.x.x Mar 7 09:58:50 office dovecot: auth(default): client out: CONT^I3^I Mar 7 09:58:50 office dovecot: auth(default): client in: AUTH^I3^INTLM^Iservice=IMAP^Isecured^Ilip=x.x.x.x^Irip=x.x.x.x Mar 7 09:58:50 office dovecot: auth(default): client out: CONT^I3^I Mar 7 09:59:10 office dovecot: imap-login: Authenticate NTLM failed: Authentication aborted: user=<lior>, method=NTLM, rip=x.x.x.x, lip=x.x.x.x, TLS Mar 7 09:59:10 office dovecot: imap-login: Disconnected: user=<lior>, method=NTLM, rip=x.x.x.x, lip=x.x.x.x, TLS
Thanks, Lior
On 3/7/06, Andrey Panin <pazke@donpac.ru> wrote:
On 066, 03 07, 2006 at 08:20:51AM +0200, Lior Okman wrote:
On 3/6/06, Timo Sirainen <tss@iki.fi> wrote:
On Mon, 2006-03-06 at 15:26 +0200, Lior Okman wrote:
When I compare the NTLM hash provided by the dovecotpw utility to the one I have in my SAMBA ldap, it appears to be exactly the same.
When I use the LDAP passdb backend, I can see in the log file that dovecot has received the correct NTLM hash value, but outlook fails to authenticate successfully.
I'm using the debianized dovecot version v1.0.beta2.
It shouldn't matter if it's in LDAP or in passwd-file. I'd guess it reads the scheme wrong. The passwords in LDAP probably aren't prefixed with {NTLM}? Have you set default_pass_scheme = NTLM in dovecot-ldap.conf?
Have you tried if plaintext logins work with NTLM hashes in LDAP? If they don't, try setting auth_debug=yes and auth_debug_passwords=yes and check if the logs help.
I've tried putting plaintext passwords in LDAP, and this time it works. Putting the NTLM hash in LDAP still fails, but the value in LDAP is exactly the same as the value generated by dovecotpw.
What should I try next?
Could you try -beta3 with attached patch applied ?
-- Andrey Panin | Linux and UNIX system administrator pazke@donpac.ru | PGP key: wwwkeys.pgp.net
-- Andrey Panin | Linux and UNIX system administrator pazke@donpac.ru | PGP key: wwwkeys.pgp.net
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