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Commit Graph

728 Commits

Author SHA1 Message Date
Andreas Schneider
448d67bae7 s4:kdc: Fix size type for num_bind in kdc-heimdal
This fixes a compile error on sn-devel184.

Signed-off-by: Andreas Schneider <asn@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Sat Jan 19 15:36:51 CET 2019 on sn-devel-144
2019-01-19 15:36:51 +01:00
Swen Schillig
357fe04bd4 s4: Add kerberos tracing
Replace kerberos context initialization from
raw krb5_init_context() to smb_krb5_init_context_basic()
which is adding common tracing as well.

Signed-off-by: Swen Schillig <swen@linux.ibm.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>

Autobuild-User(master): Christof Schmitt <cs@samba.org>
Autobuild-Date(master): Thu Dec 20 01:31:17 CET 2018 on sn-devel-144
2018-12-20 01:31:17 +01:00
Volker Lendecke
a167014554 krb5_wrap: Add a talloc_ctx to smb_krb5_principal_get_realm()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2018-11-28 17:44:15 +01:00
Isaac Boukris
6ab51b2af9 CVE-2018-16853: fix crash in expired passowrd case
When calling encode_krb5_padata_sequence() make sure to
pass a null terminated array as required.

Fixes expired passowrd case in samba4.blackbox.kinit test.

Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2018-11-28 08:22:25 +01:00
Andreas Schneider
7cddbcf039 CVE-2018-16853: Do not segfault if client is not set
This can be triggered with FAST but we don't support this yet.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13571

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2018-11-28 08:22:24 +01:00
Isaac Boukris
6c453aeb0c CVE-2018-16853: The ticket in check_policy_as can actually be a TGS
This happens when we are called from S4U2Self flow, and in that case
kdcreq->client is NULL.  Use the name from client entry instead.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13571

Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2018-11-28 08:22:24 +01:00
Andrew Bartlett
b6e9c4b8bb CVE-2018-16841 heimdal: Fix segfault on PKINIT with mis-matching principal
In Heimdal KRB5_KDC_ERR_CLIENT_NAME_MISMATCH is an enum, so we tried to double-free
mem_ctx.

This was introduced in 9a0263a7c3 for the
MIT KDC effort.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13628

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
2018-11-28 08:22:23 +01:00
Gary Lockyer
6c850b77c4 source4 smbd prefork: restart on non zero exit code
Restart any pre-fork master or worker process that exits with a non
zero exit code.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-11-23 08:25:19 +01:00
Philipp Gesang
f8f2c5620c s4-kdc: restore MIT KDC backend
Fix fallout from the KDC prefork patchset (99aea42520fc..).

GCC warns when Samba is being built with --with-system-mitkrb5.
Fix this by adapting the signature of mitkdc_task_init() to match
task_init which has been extended to return a status code.

Status codes try to mimick those of kdc-heimdal.c:kdc_task_init()
as closely as possible.

Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
2018-11-09 17:52:30 +01:00
Gary Lockyer
b003134e0d source4 smbd: pass instance number to post_fork
Pass the instance number to the post_fork hook. This is required to
allow the rpc_server to support the prefork process model.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-11-07 17:55:09 +01:00
Gary Lockyer
325e928db9 kdc: Update debug calls
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
2018-11-01 23:49:25 +01:00
Gary Lockyer
7366de3310 source4 smbd kdc: allow the kdc to run in prefork
Modify the kdc to allow it to run in the prefork process model. The
task_init function has been split up and code moved into the post_fork
function.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
2018-11-01 23:49:25 +01:00
Gary Lockyer
99aea42520 source4 smdb: Add a post fork hook to the service API
Add a post fork hook to the service API this will be called:

 - standard process model
   immediately after the task_init.

- single process model
  immediately after the task_init

- prefork process model, inhibit_pre_fork = true
  immediately after the task_init

- prefork process model, inhibit_pre_fork = false
  after each service worker has forked. It is not run on the service
  master process.

The post fork hook is not called in the standard model if a new process
is forked on a new connection. It is instead called immediately after
the task_init.

The task_init hook has been changed to return an error code. This ensures
the post_fork code is only run if the task_init code completed successfully.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
2018-11-01 23:49:24 +01:00
Gary Lockyer
d6777a66c0 source4 smbd: Make the service_details structure constant.
Make the service_details structure a static const.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
2018-11-01 23:49:24 +01:00
Andrew Bartlett
aa07400f73 kdc: Improve code clarity with extra brackets
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Sep  5 16:17:59 CEST 2018 on sn-devel-144
2018-09-05 16:17:59 +02:00
Andrew Bartlett
1bb2a1c6b3 auth: For NTLM and KDC authentication, log the authentication duration
This is not a general purpose profiling solution, but these JSON logs are already being
generated and stored, so this is worth adding.

Some administrators are very keen to know how long authentication
takes, particularly due to long replication transactions in other
processes.

This complements a similar patch set to log the transaction duration.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
2018-06-25 08:32:14 +02:00
Volker Lendecke
3aae048a43 kdc: Fix CID 1435720 Unchecked return value
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2018-05-24 00:43:52 +02:00
Mathieu Parent
fd46fd0941 Fix spelling s/fowarding/forwarding/
Signed-off-by: Mathieu Parent <math.parent@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
2018-05-12 02:09:26 +02:00
Gary Lockyer
5c0345ea9b samdb: Add remote address to connect
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-05-10 20:02:23 +02:00
Stefan Metzmacher
63de04c01c s4:kdc: make sure we expand group memberships of the local domain
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13300

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2018-03-19 20:30:52 +01:00
Stefan Metzmacher
a5f803e9e9 s4:kdc: pass krbtgt and server to samba_kdc_update_pac_blob()
This will be used for SID expanding and filtering.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13300

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2018-03-19 20:30:52 +01:00
Stefan Metzmacher
396fd8f4ff s4:kdc: remember is_krbtgt, is_rodc and is_trust samba_kdc_entry
This can later be used for sid filtering and similar things.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13300

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2018-03-19 20:30:52 +01:00
Stefan Metzmacher
31b5328c46 s4:kdc: disable support for CROSS_ORGANIZATION domains
We don't support selective authentication yet,
so we shouldn't silently allow domain wide authentication
for such a trust.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13299

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Wed Feb 28 19:45:13 CET 2018 on sn-devel-144
2018-02-28 19:45:13 +01:00
Stefan Metzmacher
d0a813a173 s4:kdc: only support LSA_TRUST_TYPE_UPLEVEL domains in samba_kdc_trust_message2entry()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13299

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2018-02-28 14:33:19 +01:00
Stefan Metzmacher
274209f5cd s4:kdc: make use of dsdb_trust_parse_tdo_info() in samba_kdc_trust_message2entry()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13299

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2018-02-28 14:33:19 +01:00
Alexander Bokovoy
7c1c8c6817 mit-kdb: support MIT Kerberos 1.16 KDB API changes
MIT Kerberos 1.16 adds ability to audit local and remote addresses
during AS_REQ processing. As result, audit_as_req callback signature
was changed to include the addresses and KDB API version was increased.

Change mit-kdb code to properly expose audit_as_req signature KDC
expects in 1.16 version. Also update #ifdefs to account for the new
KDB API version.

This commit does not add actual audit of the local and remote IP
addresses, it only makes it possible to compile against MIT Kerberos
1.16.

Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Jan 19 01:36:22 CET 2018 on sn-devel-144
2018-01-19 01:36:22 +01:00
Stefan Metzmacher
aaa946bb9e s4:kdc: only map SDB_ERR_NOT_FOUND_HERE to HDB_ERR_NOT_FOUND_HERE
HDB_ERR_NOT_FOUND_HERE indicated a very specific error on an RODC.

We should not map any error to HDB_ERR_NOT_FOUND_HERE,
we should just pass errors along unmapped.

Otherwise we'll hit the logic bug in:

    if (ret == KDC_PROXY_REQUEST) {
        uint16_t port;

        if (!sock->kdc_socket->kdc->am_rodc) {
            DEBUG(0,("kdc_udp_call_loop: proxying requested when not RODC"));
                    talloc_free(call);
            goto done;
        }

And just don't send an error message to the client.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13132

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Dec  6 23:16:54 CET 2017 on sn-devel-144
2017-12-06 23:16:54 +01:00
David Mulder
e60f49783e gpo: Apply kerberos settings
Add kdc kerberos settings to gpo.tdb, then retrieve those settings in
lpcfg_default_kdc_policy.

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2017-11-20 21:41:15 +01:00
Andreas Schneider
ab44be7a27 s4:kdc: Pass down the task to get access to model_ops for kpasswd server
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2017-10-27 11:29:12 +02:00
Gary Lockyer
0840252670 source4/smbd: Do not overstamp the process model with "single"
Instead, except in RPC which is a special SNOWFLAKE, we rely on the struct
service_details in the init function.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
2017-10-19 05:33:10 +02:00
Gary Lockyer
b852ad044b source4/smbd: refactor the process model for prefork
Refactor the process model code to allow the addition of a prefork
    process model.

    - Add a process context to contain process model specific state
    - Add a service details structure to allow service to indicate which
      process model options they can support.

    In the new code the services advertise the features they support to the
    process model.  The process model context is plumbed through to allow the
    process model to keep track of the supported options, and any state
    the process model may require.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
2017-10-19 05:33:09 +02:00
Andreas Schneider
9b64b11c2f mit-kdb: Fix NULL pointer check after malloc
This fixes building with GCC 7.1.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=12930

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon Jul 24 18:45:34 CEST 2017 on sn-devel-144
2017-07-24 18:45:33 +02:00
Andreas Schneider
822f8cdfea mit_samba: Fix the MIT KDC build with the latest changes
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>

Autobuild-User(master): Garming Sam <garming@samba.org>
Autobuild-Date(master): Thu Jun  1 07:12:47 CEST 2017 on sn-devel-144
2017-06-01 07:12:47 +02:00
Garming Sam
fd29e28d52 netlogon: Implement SendToSam along with its winbind forwarding
This allows you to forward bad password count resets to 0. Currently,
there is a missing access check for the RODC to ensure it only applies
to cached users (msDS-Allowed-Password-Replication-Group).

(further patches still need to address forcing a RWDC contact)

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2017-05-30 08:06:07 +02:00
Garming Sam
29cccff500 kdc: Send bad password via NETLOGON in RODC
This means that a RWDC will be collecting the badPwdCount to ensure
domain wide lockout.

TODO The parameters should be better constructed.

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2017-05-30 08:06:06 +02:00
Garming Sam
ef0218a512 hdb: Dupe a copy of repl secrets into the KDC
When you have an RODC, this will force the fetch of secrets if not found here

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2017-05-30 08:06:06 +02:00
Andreas Schneider
330d82c1bc python: Create the kdc.conf in the Samba private directory
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2017-05-26 11:26:17 +02:00
Stefan Metzmacher
31c7493094 s4:kdc: make use of gensec_update() in kpasswd_process()
This avoids using gensec_update_ev() with a nested event loop.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2017-05-21 21:05:12 +02:00
Jeremy Allison
560c37524b s4: Add TALLOC_CTX * to register_server_service().
Use the passed in context from callers. Remove one
talloc_autofree_context().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2017-05-11 20:30:13 +02:00
Andreas Schneider
68d0c295fb mit_samba: Fix principal lookup for cross domain referral
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Sun Apr 30 03:29:35 CEST 2017 on sn-devel-144
2017-04-30 03:29:34 +02:00
Andreas Schneider
764e485450 mit-samba: Remove obsolete mit_samba_update_pac_data()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:12 +02:00
Andreas Schneider
0668c460b4 s4-kdc: Use mit_samba_reget_pac() in ks_verify_pac()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:12 +02:00
Andreas Schneider
648388ad00 s4-kdc: Implement mit_samba_reget_pac()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:12 +02:00
Andreas Schneider
9c33e9635e s4-pac-glue: Do not add an empty PAC_TYPE_LOGON_NAME with MIT
MIT Kerberos will insert an empty PAC_TYPE_LOGON_NAME during
krb5_pac_sign().

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:11 +02:00
Andreas Schneider
a72eecd5bf mit-samba: Remove unused mit_samba_get_pac_data()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:11 +02:00
Andreas Schneider
bff4311ec4 s4-kdc: Use mit_samba_get_pac() in ks_get_pac()
This adds UPN_DNS_INFO to the PAC.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:11 +02:00
Andreas Schneider
e240cff591 s4-kdc: Implement mit_samba_get_pac()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:11 +02:00
Andreas Schneider
ecf42cef39 s4-kdc: Fix logging with the KDB driver
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:11 +02:00
Andreas Schneider
dce438e18e s4-kdc: Start the kpasswd service with MIT KDC
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:10 +02:00
Andreas Schneider
a1d9e8814a s4-kdc: Add MIT Kerberos specific kpasswd code
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-04-29 23:31:10 +02:00