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These pointers can be set by implementing functions in order for them to
be logged in auth_check_password_recv().
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Jun 15 06:30:35 UTC 2023 on atb-devel-224
Currently, we rely on ‘stored_nt’ being NULL to give an
NT_STATUS_WRONG_PASSWORD error.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This fixes a use after free problem introduced by
commit 7b8e32efc336fb728e0c7e3dd6fbe2ed54122124,
which has msg = current; which means the lifetime
of the 'msg' memory is no longer in the scope of th
caller.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15253
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The error code may be NT_STATUS_ACCOUNT_LOCKED_OUT, which we use in
preference to NT_STATUS_WRONG_PASSWORD.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Since we don't store a salt per-key, but only a single salt, when we do
not have the NT hash in the unicodePwd (eg ntlm auth = disabled), the check
will fail for a previous password if the account was renamed prior to a
newer password being set.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
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>
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>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Mar 29 03:32:57 UTC 2022 on sn-devel-184
With the NT hash becoming optional we cannot make blind assumptions that
a missing value means we are on an RODC needing the password replicated.
Instead, check for supplementalCredentials as well.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We also move the authentication to after checking whether the user is
protected, so that if a user in the Protected Users group tries to
authenticate with a wrong password, the bag password count is not
incremented and the account is not locked out. This does not match
MS-APDS, but matches the behaviour of Windows.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This means Samba will essentially ignore this attribute, not even attempting
to read it from the AD DC sam.ldb
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This still passes in the value in the LM field for checking
in case it is an NT response or LMv2.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
LM authentication is very weak and a very bad idea, so has been deprecated since
Samba 4.11.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This makes it much clearer what it is used for and
it is a special hack for authenticate_ldap_simple_bind_send()
in order to avoid some additional work in
authsam_check_password_internals().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13879
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Using != AUTH_PASSWORD_RESPONSE is not the correct indication
due to the local mappings from AUTH_PASSWORD_PLAIN via
AUTH_PASSWORD_HASH to AUTH_PASSWORD_RESPONSE.
It means an LDAP simble bind will now honour
'old password allowed period'.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13879
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15001
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Fix a ubsan detected integer overflow.
../../source4/auth/ntlm/auth_sam.c:445:56: runtime error:
signed integer overflow: 60 * 600000000
cannot be represented in type 'int'
In practice this meant that the default for the smb.conf parameter
"old password allowed period" was approximately 16 seconds, rather than
the intended 60 minutes. Similarly the value used would be 22.5 times
less than the value specified in smd.conf.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Jan 13 23:52:38 UTC 2021 on sn-devel-184
LDAP Simple BIND authentications have already been mapped to a
DOMAIN\username pair and should not be mapped twice.
This appears to be a regression in 09e24ce40f89ac2f03d0c5fefa8b59f0d113fa6b
included in Samba 4.7.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13598
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Isaac Boukris <iboukris@samba.org>
Autobuild-User(master): Isaac Boukris <iboukris@samba.org>
Autobuild-Date(master): Fri Feb 14 17:13:33 UTC 2020 on sn-devel-184
It turns out that an empty domain name maps to the local SAM.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13206
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): Fri Feb 23 04:08:26 CET 2018 on sn-devel-144
There's no point in creating a temporary ldb_context as
all direct callers already have a valid struct ldb_context for
the local sam.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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>
This requires as a pre-requisite that the auth stack is not run twice.
We remove the knownfail introduced in the earlier patch.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We rely on the other SAM modules to increment the badPwdCount locally,
but we must reset to 0 if the remote sends a success (to override our
failure).
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Use the talloc context passed into all modules.
Remove one more talloc_autofree_context().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Not currently used - no logic changes inside.
This will make it possible to pass down a long-lived talloc
context from the loading function for modules to use instead
of having them internally all use talloc_autofree_context()
which is a hidden global.
Updated all known module interface numbers, and added a
WHATSNEW.
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Böhme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Apr 22 01:17:00 CEST 2017 on sn-devel-144
We need to check if the upn suffix is within our forest.
The check if it's within our domain is done in
authsam_check_password_internals() after calling
crack_name_to_nt4_name().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=2976
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12709
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This fails the authentication for any known domain with
NT_STATUS_NO_TRUST_LSA_SECRET.
This will be used on an AD_DC to fail authentication
for users of trusted domains sanely, instead of silently
mapping them to local users.
This is just a temporary solution, until we have full
async support in the gensec/auth4.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=2976
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12709
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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>
