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Will be used later by s3 netlogon server.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 121e7b0e39478c5291100652ac92c263f406076b)
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit d9e6b490db3ead7e79bb3ff0c1f9ef8ab8bdc65b)
By default we'll now require schannel connections with
privacy/sealing/encryption.
But we allow exceptions for specific computer/trust accounts.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit b3ed90a0541a271a7c6d4bee1201fa47adc3c0c1)
It's enough to warn the admin once per connection.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 3c57608e1109c1d6e8bb8fbad2ef0b5d79d00e1a)
We'll soon add some additional contraints in dcesrv_netr_check_schannel(),
which are also required for dcesrv_netr_LogonSamLogonEx().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 689507457f5e6666488732f91a355a2183fb1662)
This will allow us to reuse the function in other places.
As it will also get some additional checks soon.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit f43dc4f0bd60d4e127b714565147f82435aa4f07)
This allows the admin to notice what's wrong in order to adjust the
configuration if required.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 43df4be35950f491864ae8ada05d51b42a556381)
This makes it more flexible when we change the global default to
'reject md5 servers = yes'.
'allow nt4 crypto = no' is already the default.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 69b36541606d7064de9648cd54b35adfdf8f0e8f)
We'll soon make it possible to use 'reject md5 servers:CLIENTACCOUNT$ = no',
which means we'll need use the account name from our SAM.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit b09f51eefc311bbb1525efd1dc7b9a837f7ec3c2)
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 4c7f84798acd1e3218209d66d1a92e9f42954d51)
We'll soon make it possible to use 'reject md5 servers:CLIENTACCOUNT$ = no',
which means we'll need the downgrade detection in more places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit b6339fd1dcbe903e73efeea074ab0bd04ef83561)
In order to avoid generating useless debug messages during make test,
we will use 'CVE_2020_1472:warn_about_unused_debug_level = 3'
and 'CVE_2020_1472:error_debug_level = 2' in order to avoid schannel warnings.
Review with: git show -w
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 16ee03efc194d9c1c2c746f63236b977a419918d)
This will simplify the following changes.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit ec62151a2fb49ecbeaa3bf924f49a956832b735e)
This will simplify the following changes.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 0e6a2ba83ef1be3c6a0f5514c21395121621a145)
This will simplify the following changes.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 7baabbe9819cd5a2714e7ea4e57a0c23062c0150)
This will simplify the following changes.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit e060ea5b3edbe3cba492062c9605f88fae212ee0)
This emulates older verions of Samba that fail to implement
DRSUAPI_DRS_GET_ANC correctly and totally fails to support
DRSUAPI_DRS_GET_TGT.
This will allow testing of a client-side fallback, allowing migration
from sites that run very old Samba versions over DRSUAPI (currently
the only option is to attempt an in-place upgrade).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15189
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15189
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
(cherry picked from commit 314bc44fa9b8fc99c80bfcfff71f2cec67bbda36)
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 1aa403517ffc0d43df72ddc9fa2ce86ab5c33873)
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 1b3d7f811680f9ac66ca5822950b3eee081a06b0)
This will be used in the following commits.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit a246ae993fd8553bf66aa8ee1700eb68b85f2857)
Now the initial account search is performed under the transaction,
ensuring the overall password change is atomic. We set DSDB_SESSION_INFO
to drop our privileges to those of the user before we perform the actual
password change, and restore them afterwards if we need to update the
bad password count.
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>
(cherry picked from commit fcabcb326d385c1e1daaa8dae9820e33a3868f56)
[jsutton@samba.org Included dsdb/common/util.h header for
DSDB_SESSION_INFO define]
If the account has been locked out in the meantime (indicated by
NT_STATUS_ACCOUNT_LOCKED_OUT), we should return the appropriate error
code.
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>
(cherry picked from commit a268a1a0e304d0702469e4ac146d8af5e7384c39)
This helps the bad password and audit log handling code as it
allows assumptions to be made about the attributes found in
the variable "msg", such as that DSDB_SEARCH_SHOW_EXTENDED_DN
was used.
This ensures we can re-search on the DN via the embedded GUID,
which in in turn rename-proof.
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>
(cherry picked from commit 439f96a2cfe77f6cbf331d965a387512c2db91c6)
[jsutton@samba.org Adapted to LM hash still being present]
This aims to minimise usage of the error-prone pattern of searching for
a just-added message element in order to make modifications to it (and
potentially finding the wrong element).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15009
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
mapped_state is completely irrelevant for audit logging and
will also be removed in the next commits.
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>
(cherry picked from commit 52787b9c1e9370133ff4481c62c2e7b9393c2439)
This is important for the source3/rpc_server code as it might
be called embedded in smbd and may not run as root with access
to our private tdb/ldb files.
Note this is only really needed for 4.15 and older, as
we no longer run the rpc_server embedded in smbd,
but we better be consistent for now.
This should be able to fix the problem the printing no longer works
on Windows 7 with 2021-10 monthly rollup patch (KB5006743).
Windows uses NTLMSSP with privacy at the DCERPC layer on top
of NCACN_NP (smb).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14867
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 0651fa474cd68b18d8eb9bdc7c4ba5b847ba9ad9)
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14936
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): Tue Jan 11 22:03:03 UTC 2022 on sn-devel-184
This allows us to let DS_DIRECTORY_SERVICE_{8,9,10}_REQUIRED through
based on the manual changed msDS-Behavior-Version of our NTDSA object.
We still need to have tests depending on the msDS-Behavior-Version
value if the DSGETDC_VALID_FLAGS is really correct at all.
But for now this allows us to test krb5 FAST from Windows clients.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Autobuild-User(master): Joseph Sutton <jsutton@samba.org>
Autobuild-Date(master): Fri Dec 24 03:03:50 UTC 2021 on sn-devel-184
Note that this doesn't change the logic as we still reject
DS_DIRECTORY_SERVICE_{8,9,10}_REQUIRED via the initial DSGETDC_VALID_FLAGS
check. The may change that in future, but may need some tests for it.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This avoids a crash that's triggered by windows clients using
handles from samr_Connect*() on across multiple connections within
an association group.
In other cases is not strictly required, but it makes it easier to audit that
source4/rpc_server no longer calls samdb_connect() directly and also
improves the auditing for the dcesrv_samdb_connect_as_system() case.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14468
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Jule Anger <janger@samba.org>
Autobuild-Date(master): Tue Nov 9 20:37:30 UTC 2021 on sn-devel-184
This is not strictly required, but it makes it easier to audit that
source4/rpc_server no longer calls samdb_connect() directly and
also improves auditing for the dcesrv_samdb_connect_as_system() case.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14468
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This avoids a crash that's triggered by windows clients using
handles from OpenPolicy[2]() on across multiple connections within
an association group.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14468
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly required, but it makes it easier to audit that
source4/rpc_server no longer calls samdb_connect() directly.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14468
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This avoids a crash that's triggered by windows clients using
DsCrackNames across multiple connections within an association group
on the same DsBind context(policy) handle.
It also improves the auditing for the dcesrv_samdb_connect_as_system() case.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14468
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We already had dcesrv_samdb_connect_as_system(), but it uses the per
connection memory of auth_session_info and remote_address.
But in order to use the samdb connection on a per association group
context/policy handle, we need to make copies, which last for the
whole lifetime of the 'samdb' context.
We need the same logic also for all cases we make use of
the almost same logic where we want to create a samdb context
on behalf of the authenticated user (without allowing system access),
so we introduce dcesrv_samdb_connect_as_user().
In the end we need to replace all direct callers to samdb_connect()
from source4/rpc_server.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14468
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These common routines will assist the KDC to do the same access
checking as the RPC servers need to do regarding which accounts
a RODC can act with regard to.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14558
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
These are added for the uncommon cases.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14558
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
In particular the objectGUID is no longer used, and in the NETLOGON case
the special case for msDS-KrbTgtLink does not apply.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14558
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
This shares the lookup of the tokenGroups attribute.
There will be a new caller that does not want to do this step,
so this is a wrapper of samdb_confirm_rodc_allowed_to_repl_to_sid_list()
rather than part of it
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14558
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
While these checks were not in the NETLOGON case, there is no sense where
an RODC should be resetting a bad password count on either a
UF_INTERDOMAIN_TRUST_ACCOUNT nor a RODC krbtgt account.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14558
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
This will allow the creation of a common helper routine that
takes the token SID list (from tokenGroups or struct auth_user_info_dc)
and returns the allowed/denied result.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14558
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
This is instead of an array of struct dom_sid *.
The reason is that auth_user_info_dc has an array of struct dom_sid
(the user token) and for checking if an RODC should be allowed
to print a particular ticket, we want to reuse that a rather
then reconstruct it via tokenGroups.
This also avoids a lot of memory allocation.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14558
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
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>
Make this available as a shared structure for both source3 and source4
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
