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Commit Graph

280 Commits

Author SHA1 Message Date
Andrew Bartlett
a21ca8ac9c Remove rudundent check and fallback for AES CFB8 as we now require GnuTLS 3.6.13
This allows us to remove a lot of conditionally compiled code and so
know with more certaintly that our tests are covering our codepaths.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2023-06-30 14:00:38 +00:00
Joseph Sutton
ca9d27ae99 auth: Add functionality to log client and server policy information
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-06-25 23:29:32 +00:00
Andreas Schneider
98c14205a0 auth: Fix code spelling
Best reviewed with: `git show --word-diff`

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Rowland Penny <rpenny@samba.org>
2023-03-28 09:33:31 +00:00
Michael Tokarev
17c733d946 spelling: connnect encrytion exisit expection explicit invalide missmatch paramater paramter partion privilige relase reponse seperate unkown verson authencication progagated
Tree-wide spellcheck for some common misspellings.

source3/utils/status.c has misspelled local variable (unkown_dialect).

"missmatch" is a known historical misspelling, only the incorrect
misspellings are fixed.

source3/locale/net/de.po has the spelling error (unkown) in two msgids -
it probably should be updated with current source.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2022-06-10 18:12:33 +00:00
Joseph Sutton
feb36dbebf lib/util: Change function to mem_equal_const_time()
Since memcmp_const_time() doesn't act as an exact replacement for
memcmp(), and its return value is only ever compared with zero, simplify
it and emphasize the intention of checking equality by returning a bool
instead.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2022-06-09 22:49:29 +00:00
Joseph Sutton
ae6634c787 auth: Use constant-time memcmp when comparing sensitive buffers
This helps to avoid timing attacks.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15010

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2022-06-09 22:49:29 +00:00
Volker Lendecke
fa445f1531 auth: Fix a typo in auth/gensec/ncalrpc.c
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2021-12-10 14:02:30 +00:00
Alexander Bokovoy
c69b66f649 IPA DC: add missing checks
When introducing FreeIPA support, two places were forgotten:

 - schannel gensec module needs to be aware of IPA DC
 - _lsa_QueryInfoPolicy should treat IPA DC as PDC

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14903

Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>

Autobuild-User(master): Alexander Bokovoy <ab@samba.org>
Autobuild-Date(master): Sat Nov 13 07:01:26 UTC 2021 on sn-devel-184
2021-11-13 07:01:26 +00:00
Stefan Metzmacher
e2d271cb6b CVE-2020-25719 CVE-2020-25717: auth/gensec: always require a PAC in domain mode (DC or member)
AD domains always provide a PAC unless UF_NO_AUTH_DATA_REQUIRED is set
on the service account, which can only be explicitly configured,
but that's an invalid configuration!

We still try to support standalone servers in an MIT realm,
as legacy setup.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556

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

[jsutton@samba.org Removed knownfail entries]
2021-11-09 19:45:33 +00:00
Andreas Schneider
2daf3e7975 auth:gensec: Use lpcfg_weak_crypto()
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2021-08-03 09:28:38 +00:00
Volker Lendecke
ad7628b2cb gensec: Slightly simplify gensec_generate_session_info_pac()
Reduce indentation by an early error return and by introducing a
helper variable.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2021-04-27 13:24:35 +00:00
Volker Lendecke
69a3d0fa4b gensec: Remove gensec_security_all(), it was only used internally
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-04-06 22:29:34 +00:00
Andreas Schneider
1298280a22 auth:creds: Rename CRED_USE_KERBEROS values
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
2020-11-03 15:25:37 +00:00
Stefan Metzmacher
515cffb1f2 auth:gensec: If Kerberos is required, keep schannel for machine account auth
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
2020-09-07 12:02:15 +00:00
Stefan Metzmacher
a33a40bbc8 auth:gensec: Pass use_kerberos and keep_schannel to gensec_use_kerberos_mechs()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2020-09-07 12:02:15 +00:00
Stefan Metzmacher
2186d4131a auth:gensec: Make gensec_use_kerberos_mechs() a static function
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2020-09-07 12:02:15 +00:00
Stefan Metzmacher
b34e8dc898 auth:gensec: Add gensec_security_sasl_names()
Pair-Programmed-With: Andreas Schneider <asn@samba.org>

Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
2020-09-07 12:02:15 +00:00
Matthew DeVore
232054c09b lib/util: remove extra safe_string.h file
lib/util/safe_string.h is similar to source3/include/safe_string.h, but
the former has fewer checks. It is missing bcopy, strcasecmp, and
strncasecmp.

Add the missing elements to lib/util/safe_string.h remove the other
safe_string.h which is in the source3-specific path. To accomodate
existing uses of str(n?)casecmp, add #undef lines to source files where
they are used.

Signed-off-by: Matthew DeVore <matvore@google.com>
Reviewed-by: David Mulder <dmulder@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Aug 28 02:18:40 UTC 2020 on sn-devel-184
2020-08-28 02:18:40 +00:00
Volker Lendecke
af34a411b9 gensec: Fix a typo
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2020-08-17 19:35:37 +00:00
Gary Lockyer
f467727db5 CVE-2020-10704: lib util asn1: Add ASN.1 max tree depth
Add maximum parse tree depth to the call to asn1_init, which will be
used to limit the depth of the ASN.1 parse tree.

Credit to OSS-Fuzz

REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20454
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14334

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2020-05-04 02:59:31 +00:00
Andreas Schneider
6ada071d62 gensec: Add a check if a gensec module implements weak crypto
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2020-03-19 20:46:41 +00:00
Stefan Metzmacher
98d2d5a403 auth/gensec: map NT_STATUS_{INVALID_ACCOUNT_NAME,NO_SUCH_DOMAIN} to NT_STATUS_NO_SUCH_USER
This means nt_status_squash() will map NT_STATUS_NO_SUCH_USER to
LOGON_FAILURE later.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2020-02-10 16:32:37 +00:00
Stefan Metzmacher
28d9493d23 gensec/spnego: fallback on INVALID_{ACCOUNT,COMPUTER}_NAME and NO_SUCH_DOMAIN
I think it's better to handle them in spnego.c, instead of squashing
them already in the gssapi/gse modules. This is related to
KRB5KDC_ERR_{C,S}_PRINCIPAL_UNKNOWN and KRB5_REALM_UNKNOWN.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2020-02-10 16:32:37 +00:00
Isaac Boukris
23ea12e98e spnego: fix server handling of no optimistic exchange
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14106

Signed-off-by: Isaac Boukris <iboukris@redhat.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Sat Oct 12 15:51:42 UTC 2019 on sn-devel-184
2019-10-12 15:51:42 +00:00
Isaac Boukris
d7e57ef7dd spnego: add client option to omit sending an optimistic token
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14106

Signed-off-by: Isaac Boukris <iboukris@redhat.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-10-12 14:33:33 +00:00
Isaac Boukris
37daeb220e spnego: ignore server mech_types list
We should not use the mech list sent by the server in the last
'negotiate' packet in CIFS protocol, as it is not protected and
may be subject to downgrade attacks.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14106

Signed-off-by: Isaac Boukris <iboukris@redhat.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-10-12 14:33:32 +00:00
Günther Deschner
f988756599 auth/gensec: fix AES schannel seal and unseal
Workaround bug present in gnutls 3.6.8:

gnutls_cipher_decrypt() uses an optimization
internally that breaks decryption when processing
buffers with their length not being a multiple
of the blocksize.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Pair-Programmed-With: Guenther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2019-10-07 08:13:44 +00:00
Günther Deschner
709d54d68a auth/gensec: fix non-AES schannel seal
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14134

Guenther

Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2019-10-07 08:13:44 +00:00
Mathieu Parent
105bb06318 Spelling fixes s/withing/within/
Signed-off-by: Mathieu Parent <math.parent@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
2019-09-01 22:21:28 +00:00
Andrew Bartlett
fa8eddc39b auth/gensec: Use gnutls_error_to_ntstatus() in netsec_do_seal()
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2019-08-21 09:57:31 +00:00
Andreas Schneider
025f6a135f auth:gensec: Use GnuTLS AES CFB8 in netsec_do_seal()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-08-21 09:57:30 +00:00
Andrew Bartlett
3b27fd8a49 auth/gensec: Use gnutls_error_to_ntstatus() consistently in schannel
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2019-08-21 09:57:30 +00:00
Andreas Schneider
58c781dc93 auth:gensec: Use GnuTLS AES128 CFB8 in netsec_do_seq_num()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-08-21 09:57:30 +00:00
Noel Power
f004f8a234 auth/gensec: clang: Fix 'Value stored to 'status' is never read'
Fixes:

auth/gensec/spnego.c:877:2: warning: Value stored to 'status' is never read <--[clang]
        status = sub_status;
        ^        ~~~~~~~~~~
1 warning generated.

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
2019-07-11 04:08:13 +00:00
Andreas Schneider
ba96534eb3 auth:gensec: Return NTSTATUS for netsec_do_seal()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-06-27 12:54:23 +00:00
Andreas Schneider
6148cd9c97 auth:gensec: Use GnuTLS RC4 in netsec_do_seal()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-06-27 12:54:23 +00:00
Andreas Schneider
d5ca7ff40f auth:gensec: Use GnuTLS RC4 in netsec_do_seq_num()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-06-27 12:54:23 +00:00
Andrew Bartlett
8f4c30f785 lib/crypto: move gnutls error wrapper to own subsystem
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2019-06-27 12:54:22 +00:00
Andreas Schneider
232c3b6f80 auth:gensec: Use gnutls_error_to_ntstatus() in schannel
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-06-24 06:11:16 +00:00
Andreas Schneider
6317095023 auth:gensec: Return NTSTATUS for netsec_do_seq_num()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-05-21 00:03:22 +00:00
Andreas Schneider
6aa30669a1 auth:gensec: Use GnuTLS HMAC MD5 and MD5 in netsec_do_sign()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-05-21 00:03:22 +00:00
Andreas Schneider
71926c6e4f auth:gensec: Use GnuTLS HMAC MD5 in netsec_do_seal()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-05-21 00:03:21 +00:00
Andreas Schneider
6b413dab0b auth:gensec: Use GnuTLS HMAC MD5 in netsec_do_seq_num()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-05-21 00:03:21 +00:00
Andreas Schneider
83d228b66a auth:gensec: Add return code for netsec_do_sign()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-04-30 23:18:28 +00:00
Andreas Schneider
c04571d47c auth:gensec: Use GnuTLS SHA256 HMAC for schannel
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-04-30 23:18:28 +00:00
Andreas Schneider
b451168d72 auth:gensec: Make sure we zero the checksum after use
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-02-27 01:35:19 +01:00
Andreas Schneider
14c7d19b63 auth:gensec: Use C99 initializer in schannel
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
2019-01-28 10:29:21 +01:00
Stefan Metzmacher
be2a67319d auth/gensec: enforce that all DCERPC contexts support SIGN_PKT_HEADER
That's currently always the case and will simplifies the callers.

WORKS now???
TDB_NO_FSYNC=1 buildnice make -j test FAIL_IMMEDIATELY=1 SOCKET_WRAPPER_KEEP_PCAP=1 TESTS='samba4.rpc.lsa.secrets.*ncacn_np.*Kerberos.*Samba3.*fl2000dc'
and
TDB_NO_FSYNC=1 buildnice make -j test FAIL_IMMEDIATELY=1 SOCKET_WRAPPER_KEEP_PCAP=1 TESTS='samba3.rpc.lsa.*ncacn_ip_tcp.*nt4_dc'

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sun Dec 23 21:33:51 CET 2018 on sn-devel-144
2018-12-23 21:33:51 +01:00
Andreas Schneider
2a646a7485 auth:gensec: Add FALL_THROUGH statements in spnego.c
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-03-01 04:37:43 +01:00
kkplein
d39664fc66 define DBGC_AUTH class
Signed-off-by: Mourik Jan C Heupink <heupink@merit.unu.edu>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-01-08 03:34:17 +01:00