RES: [Samba] Samba 3.0.2a with ADS w2k3 Active Directory, enctype s

Tue Apr 20 12:04:08 GMT 2004

Hi Jim,

I did what the doc says but the problem is the same.

Does anybody saw this work ? I mean, is the Samba 3.0.2a+Kerberos MIT 1.3.3
able to be accessed by a WXP, W2K or W2K3 machine, using Kerberos tickets
generated in a Windows 2003 KDC (W2K3 AD) ?

Thanks

-----Mensagem original-----
De: Jim McDonough [mailto:jmcd at us.ibm.com] 
Enviada em: segunda-feira, 19 de abril de 2004 17:07
Para: Duran Munoz, Pedro
Cc: Estevam Henrique Carvalho; samba;
samba-bounces+jmcd=samba.org at lists.samba.org
Assunto: RE: [Samba] Samba 3.0.2a with ADS w2k3 Active Directory, enctypes

This is a bug in Win2k3.  See knowledgebase KB833708.  The KB article 
itself isn't correct, because it states that if you request des-cbc-crc 
you'll get des-cbc-md5 tickets, but in reality you get rc4-hmac tickets.

The KB article points you to a hotfix or a registry setting.

----------------------------
Jim McDonough
IBM Linux Technology Center
Samba Team
6 Minuteman Drive
Scarborough, ME 04074
USA

jmcd at us.ibm.com 
jmcd at samba.org

Phone: (207) 885-5565
IBM tie-line: 776-9984

"Duran Munoz, Pedro" <Pedro.Duran at fujitsu-siemens.com> 
Sent by: samba-bounces+jmcd=samba.org at lists.samba.org
04/19/2004 09:42 AM

To
"Estevam Henrique Carvalho" <estevamh at bmf.com.br>
cc
samba <samba at lists.samba.org>
Subject
RE: [Samba] Samba 3.0.2a with ADS w2k3 Active Directory, enctypes

Saludos / Best Regards

Pedro Durán Muñoz
Hello Henrique

 Actually I have the same problem as you. Firts I had tried an ADS w2k3 
and Samba 3.0.2a integration without any success ( Only works IP NTML 
protocol, kerberos does not works ( hostaname instead IP address)) . After 
I tried w2k and Samba 3.0.2a integration and works fine. But I need an ADS 
w2k3 and Samba integration  and for the moment does not works. We need the 
Samba team help for solve this issue ASAP, Is it possible for us Samba 
Team?

-----Original Message-----
From: samba-bounces+pedro.duran=fujitsu-siemens.com at lists.samba.org 
[mailto:samba-bounces+pedro.duran=fujitsu-siemens.com at lists.samba.org] On 
Behalf Of Estevam Henrique Carvalho
Sent: Monday, April 19, 2004 1:59 PM
To: samba
Subject: [Samba] Samba 3.0.2a with ADS w2k3 Active Directory, enctypes

Hi people,

I have a Linux box running Samba 3.0.2a in ADS mode MIT Kerberos 1.3.3. My 
W2K e WXP users can't access the linux box by netbios name, the only 
access that works is by IP address, I know that's caused because access 
thought IP address don't make use of Kerberos. The most strange for me 
it's that the same environment works fine with a W2K Active Directory, I 
read in same list the problem was the kerberos 1.2.x, then I changed to 
1.3.3, but the problem remains.
I also have tried the following combinations of parameters in the 
krb5.conf

Test 1 - No permitted_enctypes

[libdefaults]
                 default_realm = HOME.EHC
# The following krb5.conf variables are only for MIT Kerberos.
                 default_tgs_enctypes = des-cbc-crc des-cbc-md5
                 default_tkt_enctypes = des-cbc-crc des-cbc-md5
                 #permitted_enctypes = des-cbc-crc des-cbc-md5

Result

[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [18] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [17] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [1] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:38:34, 3] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [3] failed to decrypt with error Decrypt 
integrity check failed
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [2] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:38:34, 10] 
passdb/secrets.c:secrets_named_mutex_release(710)
  secrets_named_mutex: released mutex for replay cache mutex
[2004/04/18 10:38:34, 3] libads/kerberos_verify.c:ads_verify_ticket(330)
  ads_verify_ticket: krb5_rd_req with auth failed (Bad encryption type)
[2004/04/18 10:38:34, 1] smbd/sesssetup.c:reply_spnego_kerberos(173)
  Failed to verify incoming ticket!

Test 2 - all enctypes that I know

[libdefaults]
                 default_realm = HOME.EHC
# The following krb5.conf variables are only for MIT Kerberos.
                 default_tgs_enctypes = des-cbc-crc des-cbc-md5
                 default_tkt_enctypes = des-cbc-crc des-cbc-md5
                 permitted_enctypes = aes256-cts-hmac-sha1-96 
aes128-cts-hmac-sha1-96 arcfour-hmac arcfour-hmac-exp arcfour-hmac-md5 des 
des-cbc-crc des-cbc-md4
des-cbc-md5 des-cbc-raw des-cbc-rawv des-hmac-sha1 des3-cbc-raw
des3-cbc-sha1 des3-cbc-sha1-kd des3-hmac-sha1 rc4-hmac

Result

2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [18] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [17] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [24] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 3] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [3] failed to decrypt with error Decrypt 
integrity check failed
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [1] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [2] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 3] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [3] failed to decrypt with error Decrypt 
integrity check failed
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [4] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [8] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [6] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad 
encryption type
[2004/04/18 10:40:10, 10] 
passdb/secrets.c:secrets_named_mutex_release(710)
  secrets_named_mutex: released mutex for replay cache mutex
[2004/04/18 10:40:10, 3] libads/kerberos_verify.c:ads_verify_ticket(330)
  ads_verify_ticket: krb5_rd_req with auth failed (Bad encryption type)
[2004/04/18 10:40:10, 1] smbd/sesssetup.c:reply_spnego_kerberos(173)
  Failed to verify incoming ticket!

Could anybody help me ? 
Does anybody have a list of MIT Kerberos 1.3.3 enctypes ?
Does anybody know what are the enctypes for Windows 2003 Active Directory 
?
What does mean "...failed to decrypt with error Decrypt integrity check 
failed" in the enctype 3 ?

Thanks

Estevam Henrique

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