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Creates a 2-element ALLOW + DENY ACE showing that when calculating
effective permissions and maximum access already seen allow bits are not
removed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13812
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit b205d695d7)
Creates a 3-element ALLOW + ALLOW + DENY ACE showing that when
calculating maximum access already seen allow bits are not removed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13812
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 0ebd8c99ae)
We basically must process the Owner Rights ACEs as any other ACE wrt to the
order of adding granted permissions and checking denied permissions. According
to MS-DTYP 2.5.3.2 Owner Rights ACEs must be evaluated in the main loop over
the ACEs in an ACL and the corresponding access_mask must be directly applied
to bits_remaining. We currently defer this to after the loop over the ACEs in
ACL, this is wrong.
We just have to do some initial magic to determine if an ACL contains and
Owner Rights ACEs, and in case it doesn't we grant SEC_STD_WRITE_DAC |
SEC_STD_READ_CONTROL at the *beginning*. MS-DTYP:
-- the owner of an object is always granted READ_CONTROL and WRITE_DAC.
CALL SidInToken(Token, SecurityDescriptor.Owner, PrincipalSelfSubst)
IF SidInToken returns True THEN
IF DACL does not contain ACEs from object owner THEN
Remove READ_CONTROL and WRITE_DAC from RemainingAccess
Set GrantedAccess to GrantedAccess or READ_CONTROL or WRITE_OWNER
END IF
END IF
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13812
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 9722f75757)
Shows that owner and SID_OWNER_RIGHTS ACE
entries interact in max permissions requests.
Tested against Windows.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13812
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit fadc4c1bc5)
This was missing in 44590c1b70.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13812
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Autobuild-User(master): David Disseldorp <ddiss@samba.org>
Autobuild-Date(master): Thu Feb 28 19:18:16 UTC 2019 on sn-devel-144
(cherry picked from commit 5cf0764bc4)
This only properly covers the small-message nonblocking case. Covering
the large-message and the blocking case is a much larger effort assuming
we want to re-send the failed message if parts of the message has gone
through properly. Don't do that for now.
This was found by sanba_dnsupdate constantly recreating its irpc handle to
winbindd in the RODC case.
The messaging_dgm code cached connected datagram sockets based on the
destination pid for 1 second. Which means the IRPC responses from
winbindd are never delivered to samba_dnsupdate,
which will then hit a timeout.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13786
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 2543bba036)
Do ping_pong a hundred times, re-initializing the msg_ctx every time.
https://bugzilla.samba.org/show_bug.cgi?id=13786
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 8d8f62c4b9)
Stacked VFS modules might use the file name, not the file
handle. Looking at you, vfs_fruit...
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13455
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit aa1fac6969)
Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-9-test): Thu Dec 13 16:47:40 CET 2018 on sn-devel-144
Without this eg "NT Authority" didn't work:
$ bin/wbinfo -n "NT Authority/Authenticated Users"
failed to call wbcLookupName: WBC_ERR_DOMAIN_NOT_FOUND
Could not lookup name NT Authority/Authenticated Users
$ bin/wbinfo --group-info="NT Authority/Authenticated Users"
failed to call wbcGetgrnam: WBC_ERR_DOMAIN_NOT_FOUND
Could not get info for group NT Authority/Authenticated Users
With the patch:
$ bin/wbinfo -n "NT Authority/Authenticated Users"
S-1-5-11 SID_WKN_GROUP (5)
$ bin/wbinfo --group-info="NT Authority/Authenticated Users"
NT AUTHORITY\authenticated users❌10002:
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12164
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: David Mulder <dmulder@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed Dec 5 11:27:22 CET 2018 on sn-devel-144
(cherry picked from commit 8b8d9fdad4)
Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-9-test): Mon Dec 10 13:43:15 CET 2018 on sn-devel-144
The loop prevention should only be done for CNAME records!
Otherwise we truncate the answer records for A, AAAA or
SRV queries, which is a bad idea if you have more than 20 DCs.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13600
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Dec 4 08:52:29 CET 2018 on sn-devel-144
(cherry picked from commit 34f4491d79)
These tests expose the regression described by Stefan Metzmacher in
discussion on the bugzilla paged linked below.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13600
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 14399fd818)
The original commit c5cd22b5bb from bug
9175 never worked, as the preceeding signing check overwrote the status
variable.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=9175
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Nov 13 17:28:45 CET 2018 on sn-devel-144
(cherry picked from commit 5a8583ed70)
This adds a simple test that verifies that after having set
smbXcli_session_set_disconnect_expired() a session gets disconnected
when it expires.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=9175
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit a5d1bb5c5b)
Fix a remaining place where we were trying to read the
msDS-LockoutObservationWindow as an int instead of an int64.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13683
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Commit 442a38c918 refactored some code into a new
get_lockout_observation_window() function. However, in moving the code,
an ldb_msg_find_attr_as_int64() inadvertently got converted to a
ldb_msg_find_attr_as_int().
ldb_msg_find_attr_as_int() will only work for values up to -2147483648
(about 3.5 minutes in MS timestamp form). Unfortunately, the automated
tests used a low enough timeout that they still worked, however,
password lockout would not work with the Samba default settings.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13683
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Sanity-check that when we use the default lockOutObservationWindow that
user lockout actually works.
The easiest way to do this is to reuse the _test_login_lockout()
test-case, but stop at the point where we wait for the lockout duration
to expire (because we don't want the test to wait 30 mins).
This highlights a problem currently where the default values don't work.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13683
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Fixes for
Bug 13669 - (CVE-2018-16852) NULL
pointer de-reference in Samba AD DC DNS management
The presence of the ZONE_MASTER_SERVERS property or the
ZONE_SCAVENGING_SERVERS property in a zone record causes the server to
follow a null pointer and terminate.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13669
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Tests to verify
Bug 13669 - (CVE-2018-16852) NULL
pointer de-reference in Samba AD DC DNS management
The presence of the ZONE_MASTER_SERVERS property or the
ZONE_SCAVENGING_SERVERS property in a zone record causes the server to
follow a null pointer and terminate.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13669
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Count number of answers generated by internal DNS query routine and stop at
20 to match Microsoft's loop prevention mechanism.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13600
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This is the final step in implementing the needed macOS semantics on the
FinderInfo stream: as long as the client hasn't written a non-zero
FinderInfo blob to the stream, there mustn't be a visible filesystem
entry for other openers.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Nov 1 01:14:23 CET 2018 on sn-devel-144
(cherry picked from commit 1b2de44ea8)
One to rule them all: consistently test critical operations on all
streams relevant to macOS clients: the FinderInfo stream, the Resource
Fork stream and an arbitrary stream that macOS maps to xattrs when
written to on a macOS SMB server.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 9d8751db64)
First step in achieving macOS compliant behaviour wrt to empty streams:
- hide empty streams in streaminfo
- prevent opens of empty streams
This means that we may carry 0-byte sized streams in our streams
backend, but this shouldn't really hurt.
The previous attempt of deleting the streams when an SMB setinfo eof to
0 request came in, turned out be a road into desaster.
We could set delete-on-close on the stream, but that means we'd have to
check for it for every write on a stream and checking the
delete-on-close bits requires fetching the locking.tdb record, so this
is expensive and I'd like to avoid that overhead.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit ebfcf75e99)
o Adds checks verifying that after setting eof to 0 on a stream, a
subsequent open gets ENOENT, before and after closing the handle that
had been used to set eof to 0.
o Verify that a write to a handle succeeds after that handle has been
used to set eof to 0 on a stream.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit b35d9e7402)
macOS SMB server versions supports this since 10.12, so we adapt our
behaviour.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 055ca448f1)
While this operation failed against older macOS versions, it passes
against versions 10.12 and newer. Update the test accordingly, a
subsequent commit will then update our implementation.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit c3cf09a079)
As we currently don't attempt to cancel the internal aio request, we
must ignore the SMB2 cancel request and continue to process the SMB2
request, cf MS-SM2 3.3.5.16:
If the target request is not successfully canceled, processing of the
target request MUST continue and no response is sent to the cancel
request.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13667
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 07eb805cde)
Rename the parameter names and adjust the return codes from dn_compare
so that:
dn_compare(a, b) =>
LESS_THAN means a is less than b.
GREATER_THAN means a is greater than b.
Thanks to metze for suggesting the correct semantics for dn_compare
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13664
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 8420a4d0fd)
The group audit code incorrectly logs member additions and deletions.
Thanks to metze for the debugging that isolated the issue, and for
suggesting the fix to dn_compare.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13664
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit eeb4089daf)
Correctly handle "ldb://" and "mdb://" schemes in the file path when
determining the path for the encrypted secrets key file.
When creating a new user and specifying the local file path of the
sam.ldb DB, it was possible to create an account that you could not
login with. The path for the key file was incorrectly calculated
for the "ldb://" and "mdb://" schemes, the scheme was not stripped from
the path and the subsequent open of the key file failed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13653
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Oct 19 09:34:46 CEST 2018 on sn-devel-144
(cherry picked from commit 7b59cd74f9)
When creating a new user and specifying the local file path of the
sam.ldb DB, it's possible to create an account that you can't actually
login with.
This commit contains tests to verify the bug.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13653
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit e1eee614ca)
This is important, otherwise we'll loose the <SID=> component of the
linked attribute.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13418
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 7a36cb30b7)
This will be used by dbcheck in the next commits.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13418
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 0386307e34)
This demonstrates the bug, that happens when the primaryGroupID
of a user is changed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13418
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 364ed537e0)
Add the 'reveal_internals' controls when performing objectclass-based
checks of mandatory attributes. This prevents the extended_dn DSDB
module from suppressing attributes that point to deleted (i.e.
non-existent/expunged) objects.
This ensures that, when modifying an object (and often not even
touching the mandatory attribute) that the fact that an attribute is a
DN, and the DN target is deleted, that the schema check will still pass.
Otherwise a fromServer pointing at a dead server can cause failures,
i.e. you can't modify the affected object at all, because the DSDB
thinks a mandatory attribute is missing.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13621
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
(cherry picked from commit 4092b369ae)
The fromServer attribute is slightly unique, in that it's a DN (similar
to a one-way link), but it is also a mandatory attribute.
Currently, if fromServer gets a bad value (i.e. a dead server that has
been expunged), the DSDB rejects any attempts to modify the associated
nTDSConnection object (regardless of whether or not you're actually
changing the fromServer attribute).
This patch adds a test-case that demonstrates how the DB can get into
such a state.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13621
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
(cherry picked from commit dec3eda1f7)
Currently the whole conversion is skipped if the FinderInfo entry in the
AppleDouble file is of the default size (ie not containing xattrs).
That also means we never converted FinderInfo from the AppleDouble file
to stream format. This change finally fixes this.
Note that this keeps failing with streams_depot, much like the existing
known-fail of "samba3.vfs.fruit streams_depot.OS X AppleDouble file
conversion". Fixing the conversion to work with vfs_streams_depot is a
task for another day.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Thu Oct 11 01:30:13 CEST 2018 on sn-devel-144
(cherry picked from commit 31daab88e6)
Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-9-test): Thu Oct 18 16:16:16 CEST 2018 on sn-devel-144
This testcase demonstrates that the AppleDouble conversion in vfs_fruit
doesn't correctly convert the FinderInfo data from the AppleDouble file
to a stream.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 8b9728480f)
The STATUS_SESSION_EXPIRED error was returned unencrypted,
if the request was encrypted.
If clients use SMB3 encryption and the kerberos authenticated session
expires, clients disconnect the connection instead of doing a reauthentication.
From https://blogs.msdn.microsoft.com/openspecification/2012/10/05/encryption-in-smb-3-0-a-protocol-perspective/
The sender encrypts the message if any of the following conditions is
satisfied:
- If the sender is sending a response to an encrypted request.
- If Session.EncryptData is TRUE and the request or response being
sent is not NEGOTIATE.
- If Session.EncryptData is FALSE, the request or response being sent
is not NEGOTIATE or SESSION_SETUP or TREE_CONNECT, and
<TreeConnect|Share>.EncryptData is TRUE.
[MS-SMB2] 3.3.4.1.4 Encrypting the Message
If Connection.Dialect belongs to the SMB 3.x dialect family and
Connection.ClientCapabilities includes the SMB2_GLOBAL_CAP_ENCRYPTION
bit, the server MUST encrypt the message before sending, if any of the
following conditions are satisfied:
- If the message being sent is any response to a client request for which
Request.IsEncrypted is TRUE.
- If Session.EncryptData is TRUE and the response being sent is not
SMB2_NEGOTIATE or SMB2 SESSION_SETUP.
- If Session.EncryptData is FALSE, the response being sent is not
SMB2_NEGOTIATE or SMB2 SESSION_SETUP or SMB2 TREE_CONNECT, and
Share.EncryptData for the share associated with the TreeId in the SMB2
header of the response is TRUE.
The server MUST encrypt the message as specified in section 3.1.4.3,
before sending it to the client.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13624
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Oct 2 14:11:30 CEST 2018 on sn-devel-144
(cherry picked from commit 4ef45e5334)
This reproduces the problem we have with expired encrypted sessions.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13624
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 01b868455c)
Since scavenging is implemented the samba_dnsupdate command always updates all
dns records required by the dc. This is not needed if dns zone scavenging
is not enabled.
This avoids the repeating TSIG error messages:
# samba_dnsupdate --option='dns zone scavenging = yes' 2>&1 | uniq -c
29 ; TSIG error with server: tsig verify failure
1 Failed update of 29 entries
# echo ${PIPESTATUS[0]}
29
# samba_dnsupdate --option='dns zone scavenging = no' 2>&1 | uniq -c
# echo ${PIPESTATUS[0]}
0
Note that this results in about 60 lines in the log file,
which triggered every 10 minutes ("dnsupdate:name interval=600" is the default).
This restores the behavior before 8ef42d4dab,
if "dns zone scavenging" is not switched on (which is still the default).
Avoiding the message from happening at all is subject for more debugging,
most likely they are caused by bugs in 'nsupdate -g' (from the bind package).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13605
Pair-programmed-with: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Björn Baumbach <bb@sernet.de>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
