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24 Commits

Author SHA1 Message Date
Stefan Metzmacher
1557d67b81 gensec/spnego: work around missing server mechListMIC in SMB servers
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11994

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Christian Ambach <ambi@samba.org>

Autobuild-User(master): Christian Ambach <ambi@samba.org>
Autobuild-Date(master): Fri Sep  2 18:10:44 CEST 2016 on sn-devel-144

(cherry picked from commit 9b45ba5cd53bd513eb777590815a0b8408af64e2)
2016-09-16 12:05:33 +02:00
Stefan Metzmacher
cdc3194934 auth/spnego: add spnego:simulate_w2k option for testing
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11849

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
(cherry picked from commit db9c01a51975a0a3ec2564357617958c2f466091)
2016-04-29 09:34:30 +02:00
Stefan Metzmacher
ac8db7a20c auth/spnego: only try to verify the mechListMic if signing was negotiated.
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>
(cherry picked from commit 65462958522baee6eedcedd4193cfcc8cf0f510e)
2016-04-29 09:34:30 +02:00
Stefan Metzmacher
37cc6b55cd auth/spnego: handle broken mechListMIC response from Windows 2000
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11870

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
(cherry picked from commit 032c2733dea834e2c95178cdd0deb73e7bb13621)
2016-04-29 09:34:29 +02:00
Stefan Metzmacher
5593c60f9a auth/spnego: change log level for 'Failed to setup SPNEGO negTokenInit request: NT_STATUS_INTERNAL_ERROR'
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>
(cherry picked from commit 9930bd17f2d39e4be1e125f83f7de489a94ea1d1)
2016-04-29 09:34:29 +02:00
Stefan Metzmacher
3ae39afbe7 CVE-2016-2110: auth/gensec: add gensec_may_reset_crypto() infrastructure
[MS-SPNG] requires the NTLMSSP RC4 states to be reset after
the SPNEGO exchange with mechListMic verification (new_spnego).

This provides the infrastructure for this feature.

The 'reset_full' parameter is needed to support the broken
behavior that windows only resets the RC4 states but not the
sequence numbers. Which means this functionality is completely
useless... But we want to work against all windows versions...

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>
2016-03-29 16:25:39 +02:00
Stefan Metzmacher
f32ad5ca49 CVE-2016-2110: auth/gensec: require spnego mechListMIC exchange for new_spnego backends
This used to work more or less before, but only for krb5 with the
server finishing first.

With NTLMSSP and new_spnego the client will finish first.

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>
2016-03-29 16:25:39 +02:00
Stefan Metzmacher
3673533644 CVE-2016-2110: auth/gensec: fix the client side of a spnego downgrade
New servers response with SPNEGO_REQUEST_MIC instead of
SPNEGO_ACCEPT_INCOMPLETE to a downgrade.

With just KRB5 and NTLMSSP this doesn't happen, but we
want to be prepared for the future.

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>
2016-03-29 16:25:39 +02:00
Stefan Metzmacher
9440fa898f CVE-2016-2110: auth/gensec: fix the client side of a new_spnego exchange
Even for SMB where the server provides its mech list,
the client needs to remember its own mech list for the
mechListMIC calculation.

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>
2016-03-29 16:25:38 +02:00
Stefan Metzmacher
2e6af15eb0 auth/gensec: keep a pointer to a possible child/sub gensec_security context
This is a hack in order to temporary implement something like:
gensec_ntlmssp_server_domain(), which may be used within spnego.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11804

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 5e913af833721733c4f79f2636fc3ae19d5f42f0)
2016-03-29 16:24:35 +02:00
Volker Lendecke
7ef1333019 asn1: Make asn1_peek_full_tag return 0/errno
We don't need the full power of NTSTATUS here. This was the only
NTSTATUS in asn1.h, so I think it's worth removing it.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11804

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit ad630a681e345cc7765f2a2f2dc1ba25ee0200c2)
2016-03-29 16:24:28 +02:00
Jeremy Allison
3fb7397302 auth: gensec: Parameters out_mem_ctx and ev are passed in the wrong order to gensec_spnego_server_try_fallback().
Fix suggested by <lev@zadarastorage.com>. Fixes a memory leak.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11565

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Oct 22 11:27:19 CEST 2015 on sn-devel-104

(cherry picked from commit d4059e1a53ea8940b1b147d797efa1b39a5cabd1)
2015-10-28 10:56:23 +01:00
Stefan Metzmacher
2cd3e51e19 auth/gensec: remove unused gensec_[un]wrap_packets() hooks
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2015-06-23 22:12:08 +02:00
Andrew Bartlett
c3baddf271 auth: Pass though error from GENSEC sub-mechanism
This allows wrong-password or account-locked-out errors to be passed
though from Kerberos (gssapi).

Andrew Bartlett

Change-Id: I4bc11a1ad98dfbcc5a4ad9101cd843a7a59f0b59
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2014-04-02 17:12:45 +02:00
Stefan Metzmacher
01c029993c auth/gensec/spnego: map SPNEGO_REJECT to NT_STATUS_LOGON_FAILURE
This is what NTLMSSP also gives.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Mar 27 02:34:36 CET 2014 on sn-devel-104
2014-03-27 02:34:36 +01:00
Stefan Metzmacher
b2b239a854 auth/gensec: make use of gensec_update_ev() in spnego.c
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-03-27 00:36:31 +01:00
Stefan Metzmacher
966faef9c6 auth/gensec: treat struct gensec_security_ops as const if possible.
Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:19:04 +02:00
Stefan Metzmacher
c81b6f7448 auth/gensec: use 'const char * const *' for function parameters
Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:19:04 +02:00
Stefan Metzmacher
71c63e85e7 auth/gensec: introduce gensec_internal.h
We should treat most gensec related structures private.

It's a long way, but this is a start.

Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:19:02 +02:00
Volker Lendecke
8a6a13ab51 auth: Fix some nonempty blank lines
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2012-09-20 19:49:32 -07:00
Andrew Bartlett
ab80b99815 auth/gensec: Remove unused gensec_security parameter 2012-07-03 08:13:01 +10:00
Stefan Metzmacher
9ac855c8b8 auth/gensec: implement gensec_spnego_expire_time()
metze
2012-05-17 20:04:33 +02:00
Stefan Metzmacher
342be2851a s3:build: add auth/gensec/spnego.o
metze

Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Fri Jan 13 06:32:30 CET 2012 on sn-devel-104
2012-01-13 06:32:30 +01:00
Stefan Metzmacher
01f246e873 auth/gensec: move spnego.c to the toplevel
metze
2012-01-13 04:58:41 +01:00