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This may return an error if we find the account is locked out.
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>
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>
These variables are not important to protect against a race with
and a double-read can easily be avoided by moving them up the file
a little.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
By bringing this function inline it can then be split out in a
subsequent commit.
Based on work by Gary Lockyer <gary@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
authsam_calculate_lastlogon_sync_interval() is split out of authsam_update_lastlogon_timestamp()
Based on work by Gary Lockyer <gary@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Ensure that the bad password count is incremented atomically,
and that the successful logon accounting data is updated atomically.
Use bad password indicator (in a distinct TDB) to determine if to open a transaction
We open a transaction when we have seen the hint that this user
has recorded a bad password. This allows us to avoid always
needing one, while not missing a possible lockout.
We also go back and get a transation if we did not take out
one out but we chose to do a write (eg for lastLogonTimestamp)
Based on patches by Gary Lockyer <gary@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
cmocka unit tests for the authsam_reread_user_logon_data in
source4/auth/sam.c
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As is, this is pointless, as we need a transaction to make this
any less of a race, but this provides the steps towards that goal.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
To ensure that the bad password count is incremented atomically,
and that the successful logon accounting data is updated atomically,
without always opening a transaction, we will need to make a note
of all bad and successful passwords in a side-DB outside the
transaction lock.
This provides the functions needed for that and hooks them in
(future commits will handle errors and use the results).
Based on patches by Gary Lockyer <gary@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
This is not a shared library. This only worked because we use
'--as-needed' as linker option.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We use the presence or absence of a REQUESTER_SID PAC buffer to
determine whether the ticket is a TGT. We will later use this to reject
TGTs where a service ticket is expected.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15049
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
This field may be used to convey whether we were provided with a TGT or
a non-TGT. We ensure both structures are zeroed out to avoid incorrect
results being produced by an uninitialised field.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15049
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@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
This is a silly module for provoking NTSTATUS replies for testing and
was useful many moons ago for determining the NTSTATUS -> DOS table that
windows uses.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
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>
authenticate_ldap_simple_bind*() needs to pass the
result of the cracknames operation into the auth stack
as user_info->client.{account,domain}_name, because
user_info->client.{account,domain}_name is also used
when forwarding the request via netrLogonSamLogon*
to a remote server, for exactly that the values are
also used in order to map a AUTH_PASSWORD_PLAIN into
AUTH_PASSWORD_RESPONSE, where the NTLMv2 response
contains the account and domain names passed in the
netr_IdentityInfo value.
Otherwise it would not be possible to forward the
LDAP simple bind authentication request to a remote
DC.
Currently this only applies to an RODC that forwards
the request to an RWDC.
But note that LDAP simple binds (as on Windows) only
work for users in the DCs forest, as the DsCrackNames
need to work and it can't work for users of remote
forests. I tested that in a DC of a forest root domain,
if rejected the LDAP simple bind against a different forest,
but allowed it for a users of a child domain in the
same forest. The NTLMSSP bind worked in both cases.
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>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Mar 10 04:10:54 UTC 2022 on sn-devel-184
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>
mapped_state is a special hack for authenticate_ldap_simple_bind_send()
in order to avoid some additional work in authsam_check_password_internals().
But that code will be changed in the next commits, so we can simplify
the logic and only check for user_info->mapped.account_name being NULL.
As it's the important factor that user_info->mapped.account_name is
non-NULL down in the auth stack.
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>
user_info->mapped_state has nothing to do with enum auth_password_state,
user_info->password_state is the one that holds the auth_password_state value.
Luckily user_info->password_state was never referenced in the
encrypt_user_info() callers.
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>
I've seen that in LogonSamLogonEx request triggered
by a simple bind with a user of a trusted domain
within the same forest. Note simple binds don't
work with users for another forest/external domain,
as the DsCrackNames call on the bind_dn fails.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13879
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14641
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>
Pair-Programmed-With: Andreas Schneider <asn@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
It went wrong in 366f8cf090
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Jan 26 12:39:52 UTC 2022 on sn-devel-184
With the recent heimdal upgrade we better try to use the send_to_realm()
hooks as it allows us to handle the KDC lookup as well as only getting
each logical request just once in the testing code, which makes it
let dependend on the heimdal internal kdc lookup logic.
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
In future we need a real configure check for Heimdal 8.
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
These changes were submitted in a patch by
Stefan Metzmacher <metze@samba.org> in his lorikeet-heimdal
import branch of patches to upgrade to a modern Heimdal.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Thu Dec 9 14:14:12 UTC 2021 on sn-devel-184
As we want to reduce use of 'classic domain controller' role but FreeIPA
relies on it internally, add a separate role to mark FreeIPA domain
controller role.
It means that role won't result in ROLE_STANDALONE.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
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>
We need to make sure that temporary failures don't trigger a fallback
to the local SAM that silently ignores the domain name part for users.
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>
gensec_update() and gensec_unwrap() can both modify their input buffers
(for example, during the inplace RRC operation on GSSAPI tokens).
However, buffers obtained from Python bytes objects must not be modified
in any way. Create a copy of the input buffer so the original isn't
modified.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
