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1828 Commits

Author SHA1 Message Date
Andreas Schneider
82898b87a5 s4:gensec_gssapi: Correctly handle external trusts with MIT
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12554

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 2dd4887648bf006a577e03fc027e881738ca04ab)
2017-03-14 12:18:27 +01:00
Andreas Schneider
be1e1586eb s4:gensec_gssapi: Use smb_krb5_get_realm_from_hostname()
With credentials for administrator@FOREST1.EXAMPLE.COM
this patch changes the target_principal for
the ldap service of host dc2.forest2.example.com
from

  ldap/dc2.forest2.example.com@FOREST1.EXAMPLE.COM

to

  ldap/dc2.forest2.example.com@FOREST2.EXAMPLE.COM

Typically ldap/dc2.forest2.example.com@FOREST1.EXAMPLE.COM
should be used in order to allow the KDC of FOREST1.EXAMPLE.COM
to generate a referral ticket for
krbtgt/FOREST2.EXAMPLE.COM@FOREST1.EXAMPLE.COM.

The problem is that KDCs only return such referral tickets
if there's a forest trust between FOREST1.EXAMPLE.COM
and FOREST2.EXAMPLE.COM. If there's only an external domain
trust between FOREST1.EXAMPLE.COM and FOREST2.EXAMPLE.COM
the KDC of FOREST1.EXAMPLE.COM will respond with S_PRINCIPAL_UNKNOWN
when being asked for ldap/dc2.forest2.example.com@FOREST1.EXAMPLE.COM.

In the case of an external trust the client can still ask
explicitly for krbtgt/FOREST2.EXAMPLE.COM@FOREST1.EXAMPLE.COM
and the KDC of FOREST1.EXAMPLE.COM will generate it.

From there the client can use the
krbtgt/FOREST2.EXAMPLE.COM@FOREST1.EXAMPLE.COM
ticket and ask a KDC of FOREST2.EXAMPLE.COM for a
service ticket for ldap/dc2.forest2.example.com@FOREST2.EXAMPLE.COM.

With Heimdal we'll get the fallback on S_PRINCIPAL_UNKNOWN behavior
when we pass ldap/dc2.forest2.example.com@FOREST2.EXAMPLE.COM as
target principal. As _krb5_get_cred_kdc_any() first calls
get_cred_kdc_referral() (which always starts with the client realm)
and falls back to get_cred_kdc_capath() (which starts with the given realm).

MIT krb5 only tries the given realm of the target principal,
if we want to autodetect support for transitive forest trusts,
we'll have to do the fallback ourself.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=12554

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 3781eb250173981a8890b82d1ff9358f144034cd)
2017-03-14 12:18:27 +01:00
Andreas Schneider
43bc67a79b s4:gensec_gssapi: Move setup of service_principal to update function
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12554

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit bf6358bf035e7ad48bd15cc2164afab2a19e7ad6)
2017-03-14 12:18:27 +01:00
Andreas Schneider
825bfed5cb s4:gensec-gssapi: Create a helper function to setup server_principal
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12554

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 8f7c4529420316b553c80cd3d19b6996525b029a)
2017-03-14 12:18:27 +01:00
Stefan Metzmacher
202604daaa s4:gensec_gssapi: require a realm in gensec_gssapi_client_start()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 3a870baee8d9dbe5359f04a108814afc27e57d46)
2017-03-14 12:18:26 +01:00
Stefan Metzmacher
22e473e2e5 s4:gensec_gssapi: the value gensec_get_target_principal() should overwrite gensec_get_target_hostname()
If gensec_get_target_principal() has a value, we no longer have to verify
the gensec_get_target_hostname() value, it can be just an ipadress.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 48bcca566ebb3a5385b15b0525d7fbdd06361e04)
2017-03-14 12:18:26 +01:00
Volker Lendecke
efb5f38f1f auth4: Use "all_zero" where appropriate
... Saves a few bytes of footprint

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2017-01-03 16:04:29 +01:00
Andreas Schneider
fd98174443 auth/gensec: Fix typo in log message
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2016-12-24 17:16:06 +01:00
David Mulder
99d8788028 auth/gensec: Remove unneeded cli_credentials_set_conf() call
The cli_credentials_set_client_gss_creds() will set the correct realm
from the gss creds.

Pair-Programmed-With: Andreas Schneider <asn@samba.org>
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: David Mulder <dmulder@suse.com>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
2016-12-24 17:16:06 +01:00
Stefan Metzmacher
6459543b5a CVE-2016-2125: s4:gensec_gssapi: don't use GSS_C_DELEG_FLAG by default
This disabled the usage of GSS_C_DELEG_FLAG by default, as
GSS_C_DELEG_POLICY_FLAG is still used by default we let the
KDC decide if we should send delegated credentials to a remote server.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=12445

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Simo Sorce <idra@samba.org>
2016-12-20 07:51:14 +01:00
Garming Sam
683fcad3ca doc: Add doxygen for functions in srv_keytab.c
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=10882
2016-11-22 02:10:16 +01:00
Garming Sam
b02da11498 s4-auth: Don't check for NULL saltPrincipal if it doesn't need it
This check causes 4.1 domains to be unable to change their DNS backend
correctly as they do not have the saltPrincipal value stored.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=10882
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-11-22 02:10:16 +01:00
Stefan Metzmacher
558e78c7e3 s4:gensec_gssapi: We need to use the users realm in the target_principal
This is important in order to let the kdc of the users realm start with
the trust referral routing.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2016-11-15 11:00:26 +01:00
Stefan Metzmacher
f0afefefe4 s4:gensec_gssapi: pass gss_got_flags to gssapi_get_sig_size()
We need to calculate the signature length based on the negotiated
flags. This is most important on the server side where,
gss_accept_sec_context() doesn't get gss_want_flags, but fills
gss_got_flags.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2016-10-26 11:20:12 +02:00
Stefan Metzmacher
cca980eb51 s4:gensec_krb5: also report support for GENSEC_FEATURE_SIGN as krb5_mk_priv() provides sign and seal
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2016-10-26 11:20:12 +02:00
Andreas Schneider
28eae08ef7 gensec_krb5: Implement smb_krb5_rd_req_decoded() with MIT Kerberos
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>

Autobuild-User(master): Günther Deschner <gd@samba.org>
Autobuild-Date(master): Thu Sep 29 11:56:41 CEST 2016 on sn-devel-144
2016-09-29 11:56:41 +02:00
Andreas Schneider
64b2b0dacd gensec_krb5: Create a MIT Kerberos gensec_krb5_session_info()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2016-09-29 08:02:18 +02:00
Volker Lendecke
0a42a4c14b wbclient: "ev" is no longer used in wbc_sids_to_xids
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2016-09-28 00:04:36 +02:00
Andreas Schneider
4a8b588dc0 gensec_krb5: Do not leak memory of target_principal
CID 1372504

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Sep  9 04:20:04 CEST 2016 on sn-devel-144
2016-09-09 04:20:04 +02:00
Andreas Schneider
2ac297562f krb5_wrap: Rename kerberos_kinit_s4u2_cc()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-31 20:59:16 +02:00
Andreas Schneider
696cfcb3c0 krb5_wrap: Rename kerberos_kinit_password_cc()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-31 20:59:16 +02:00
Andreas Schneider
15c5dd700c krb5_wrap: Rename kerberos_kinit_keyblock_cc()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-31 20:59:16 +02:00
Andreas Schneider
1877950250 krb5_wrap: Rename get_krb5_smb_session_key()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-31 20:59:14 +02:00
Andreas Schneider
e8632e2af5 krb5_wrap: Rename kerberos_free_data_contents()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-31 20:59:13 +02:00
Andreas Schneider
81917a1162 krb5_wrap: Rename setup_kaddr()
Use a better and consistent name and switch the arguments to reflect the
name.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-31 20:59:13 +02:00
Andreas Schneider
faa3bef690 gensec_krb5: Use get_krb5_smb_session_key() in gensec_krb5_session_key()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Aug 30 15:24:02 CEST 2016 on sn-devel-144
2016-08-30 15:24:02 +02:00
Andreas Schneider
7f9a075d9c gensec_krb5: Use implementation idependent krb5_mk_req_extended()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-30 11:34:15 +02:00
Andreas Schneider
739a7adaef gensec_krb5: Use kerberos_free_data_contents() to free krb5 data
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-30 11:34:15 +02:00
Andreas Schneider
8268501972 gensec_krb5: Only set the event context with Heimdal
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-30 11:34:15 +02:00
Andreas Schneider
7ea7b60649 gensec_krb5: Use krb5_wrap setup_kaddr() to convert address
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-30 11:34:15 +02:00
Andreas Schneider
ab8628ac7a gensec_krb5: Rename smb_rd_req_return_stuff()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-30 11:34:14 +02:00
Andreas Schneider
de224d7006 gensec_krb5: Rename gensec_krb5_util to gensec_krb5_heimdal
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-08-30 11:34:14 +02:00
Stefan Metzmacher
8b1f5cad95 auth/auth_sam_reply: fill user_principal_* and dns_domain_name in make_user_info_dc_pac()
This is required in order to support netr_SamInfo6 and PAC_UPN_DNS_INFO
correctly.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-07-22 23:34:22 +02:00
Stefan Metzmacher
3eba60aa65 auth/wbc_auth_util: change wbcAuthUserInfo_to_netr_SamInfo* from level 3 to 6
This includes user_principal_name and dns_domain_name.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:26 +02:00
Stefan Metzmacher
b67ea0e123 s4:auth/kerberos: improve error message in kerberos_pac_to_user_info_dc()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:26 +02:00
Stefan Metzmacher
6257003dff s4:auth: fill user_principal_* and dns_domain_name in authsam_make_user_info_dc()
This is required in order to support netr_SamInfo6 and PAC_UPN_DNS_INFO
correctly.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:26 +02:00
Stefan Metzmacher
432e83bf5b s4:auth: make use of lpcfg_sam_name() in authsam_get_user_info_dc_principal()
This is more generic and matches all other places.

As this is only used in the KDC it's not a real logic change.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:26 +02:00
Stefan Metzmacher
853c2a6d8a s4:auth/sam: update the logonCount for interactive logons
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:24 +02:00
Stefan Metzmacher
869616ceb9 s4:auth/sam: don't update lastLogon just because it's 0 currently
Non interactive logons doesn't trigger an update
unless the (effective) badPwdCount is not 0 and lockoutTime is 0.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:24 +02:00
Stefan Metzmacher
1acd477960 s4:auth/sam: only reset badPwdCount when the effetive value is not 0 already
Non interactive logons doesn't reset badPwdCount to 0
when the effective badPwdCount is already 0
(with (badPasswordTime + lockOutObservationWindows) < now).

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:24 +02:00
Stefan Metzmacher
b73cb40dd2 s4:auth_sam: don't allow interactive logons with UF_SMARTCARD_REQUIRED
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11441

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:23 +02:00
Stefan Metzmacher
9be4860511 s4:auth/sam: use "msDS-UserPasswordExpiryTimeComputed" instead of samdb_result_force_password_change()
The logic in samdb_result_force_password_change() is incomplete
and the correct logic is already available via the constructed
"msDS-UserPasswordExpiryTimeComputed" attribute.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11441

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-06-30 03:30:23 +02:00
Andreas Schneider
a737efe2bd s4-ntlm: Fix a NULL pointer dereference in error path
Found by clang compiler.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Jun 22 23:21:33 CEST 2016 on sn-devel-144
2016-06-22 23:21:33 +02:00
Stefan Metzmacher
d247dceaaa s4:auth_anonymous: anonymous authentication doesn't allow a password
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11847

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
2016-04-28 16:51:16 +02:00
Stefan Metzmacher
8704958fb3 s4:gensec_tstream: allow wrapped messages up to a size of 0xfffffff
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11872

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
2016-04-28 16:51:15 +02:00
Stefan Metzmacher
4c4829634f CVE-2016-2110: libcli/auth: pass server_timestamp to SMBNTLMv2encrypt_hash()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
2016-04-12 19:25:23 +02:00
Stefan Metzmacher
0f6713826d s4:pygensec: make sig_size() and sign/check_packet() available
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-03-10 06:52:27 +01:00
Aurelien Aptel
34ae5c5083 s4/auth/ntlm/auth_unix.c: add parens
operator | has lower precedence than ?:
so add parens to have the expected result.

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
2016-03-10 00:08:11 +01:00
Andrew Bartlett
ffc7536330 pyauth: Use pytalloc_BaseObject_PyType_Ready()
This changes pyauth to use talloc.BaseObject() just like the PIDL output

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
2016-03-08 01:58:29 +01:00
Andrew Bartlett
0f35167d76 pygensec: Use pytalloc_BaseObject_PyType_Ready()
This changes pygensec to use talloc.BaseObject() just like the PIDL output

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
2016-03-08 01:58:29 +01:00