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Reported and proposed fix by Shilpa K <shilpa.krishnareddy@gmail.com>.
When processing DENY ACE entries for owner rights SIDs (S-1-3-4) the
code OR's in the deny access mask bits without taking into account if
they were being requested in the requested access mask.
E.g. The current logic has:
An ACL containining:
[0] SID: S-1-3-4
TYPE: DENY
MASK: WRITE_DATA
[1] SID: S-1-3-4
TYPE: ALLOW
MASK: ALLOW_ALL
prohibits an open request by the owner for READ_DATA - even though this
is explicitly allowed.
Furthermore a non-canonical ACL containing:
[0] SID: User SID 1-5-21-something
TYPE: ALLOW
MASK: READ_DATA
[1] SID: S-1-3-4
TYPE: DENY
MASK: READ_DATA
[2] SID: User SID 1-5-21-something
TYPE: ALLOW
MASK: WRITE_DATA
prohibits an open request by the owner for READ_DATA|WRITE_DATA - even
though READ_DATA is explicitly allowed in ACE no 0 and is thus already
filtered out of the "access-still-needed" mask when the deny ACE no 1 is
evaluated.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12466
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12373
Signed-off-by: Moritz Beller <moritzbeller@gmx.de>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Simo <simo@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Oct 13 18:13:45 CEST 2016 on sn-devel-144
Add Samba specific well known SIDs for
Unix UID and GID owner.
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Guenther Deschner <gd@samba.org>
SECURITY_GUEST is not exactly the same as SECURITY_ANONYMOUS.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11847
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11677
definitions taken from [MS-DTYP]: Windows Data Types,
2.4.2.4 Well-Known SID Structures.
Guenther
Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
sid_parse takes a binary blob, uint8_t reflects this a bit
better than char * does
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Volker, apologies for the mistake.
Spotted by Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Apr 29 08:20:23 CEST 2015 on sn-devel-104
This prepares a possibly stripped security descriptor for a client.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
TODO: we should import the whole lists from [MS-DTYP].
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Bug: https://bugzilla.samba.org/show_bug.cgi?id=10773
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Aug 22 02:52:50 CEST 2014 on sn-devel-104
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jun 10 21:46:15 CEST 2014 on sn-devel-104
This function is a duplicate of security_ace_equal(), and is no longer
used.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu May 29 03:34:38 CEST 2014 on sn-devel-104
Both offer the same functionality, sec_ace_equal() will be removed.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This change cleans up the white-space damage, and converts the single
line if-then statements to match Samba's coding conventions.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
With sec_desc_del_sid() now gone, this can also be removed.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The function is unused, and shares mostly the same behaviour as
security_descriptor_acl_del().
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
With make_sec_desc() converted to use security_acl_dup(), which offers
the same behaviour, this function is no longer needed.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
It currently leaks memory onto the provided talloc context on error, fix
this.
Use X_acl_dup() functions provided by secuity_descriptor.c, rather than
the redundant secdesc.c calls. Also, use the IDL generated functions to
calculate the security descriptor structure size.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
With all callers converted to use security_descriptor_copy(), this
function can be removed.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Use security_descriptor_copy() instead, which is also provided by
libcli.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
This function adds a new allow-type ACE to an existing ACE list. With
the removal of sec_desc_add_sid(), this is no longer used internally.
The same behaviour can be achieved via the much cleaner
security_ace_create() function.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
This function adds an ACE to a security descriptor DACL. The same can be
achieved via the more flexible and much cleaner security_ace_create()
and security_descriptor_dacl_add() functions.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
struct security_ace has a struct dom_sid, not a pointer to it. So we don't have
to talloc it first and then not free it.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue May 27 12:54:55 CEST 2014 on sn-devel-104
This avoids a complex if-expression
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Dec 14 00:10:21 CET 2013 on sn-devel-104
Restore and backup privileges are not relevant to ldap
access checks, and the TakeOwnership privilege should
grant write_owner right
Signed-off-by: Nadezhda Ivanova <nivanova@symas.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Richard Sharpe <realrichardsharpe@gmail.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Apr 2 20:05:13 CEST 2013 on sn-devel-104
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Mar 28 19:43:41 CET 2013 on sn-devel-104
Signed-off-by: Richard Sharpe <rsharpe@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Feb 23 19:28:15 CET 2013 on sn-devel-104
Names seems to be a bit cryptic and misleading (at least for me).
So documenting them should remove at least partially this problem.
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The for loop does this implicitly when comparing for (i = 0; i < root->num_of_children; i++)
Andrew Bartlett
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This removes special-case for initalising the children array in
insert_in_object_tree(). talloc_realloc() handles the intial allocate
case perfectly well, so there is no need to have this duplicated.
This also restores having just one place were the rest of the elements
are intialised, to ensure uniform behaviour.
To do this, we have to rework insert_in_object_tree to have only one
output variable, both because having both root and new_node as output
variables was too confusing, and because otherwise the two pointers
were being allowed to point at the same memory.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The inherited_type is only used to decide if aces should be inherited
effectively or not (INHERIT_ONLY) for the specified object.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Matthieu Patou <mat@matws.net>
It is critically important that we initialise this element as otherwise
all access is permitted.
Andrew Bartlett
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit a75805490d)
there is a libsecurity on OSF1 which clasheѕ with our security lib. see bug #9023.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Björn Jacke <bj@sernet.de>
Autobuild-Date(master): Fri Aug 10 14:22:21 CEST 2012 on sn-devel-104
Signed-off-by: Jeremy Allison <jra@samba.org>
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Mar 14 02:26:34 CET 2012 on sn-devel-104
Signed-off-by: Jeremy Allison <jra@samba.org>
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Sat Mar 10 01:33:45 CET 2012 on sn-devel-104
Ensure we process the entire ACE list instead of returning ACCESS_DENIED
and terminating the walk - ensure we only return the exact bits that cause
the access to be denied. Some of the S3 fileserver needs to know if we
are only denied DELETE access before overriding it by looking at the
containing directory ACL.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Jan 11 19:24:53 CET 2012 on sn-devel-104
The s3-waf build system is a key component of the top level build, but
with this commit is is no longer available directly. This reduces the
number of build system combinations in master as we prepare for the
Samba 4.0 release.
Andrew Bartlett
This changes auth_session_info_transport to just be a wrapper, rather
than a copy that has to be kept in sync.
As auth_session_info was already wrapped in python, this required
changes to the existing pyauth wrapper and it's users.
Andrew Bartlett
In the file server SEC_STD_DELETE is granted on the file/directory
or by FILE_DELETE_CHILD on the parent directory.
metze
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Mon Mar 21 23:25:05 CET 2011 on sn-devel-104
Some tests showed that these ACEs are not removed if the DACL_PROTECTED flag is provided at the same time.
This is not documented but tests prove it and it has been observerd in deployment.
Logical consequence of the previous commit
Signed-off-by: Michael Adam <obnox@samba.org>
Autobuild-User: Michael Adam <obnox@samba.org>
Autobuild-Date: Mon Feb 7 19:24:19 CET 2011 on sn-devel-104
When an ACE gontaining GA, GE, GR, GW, CO or CG is provided by a user or inherited
the final SD actually has to have 2 ACEs, one is an effective expanded one, and the
original one with IO flag added.
It *always* returned "SID *TYPE* is INVALID".
Guenther
Autobuild-User: Günther Deschner <gd@samba.org>
Autobuild-Date: Mon Jan 10 12:47:00 CET 2011 on sn-devel-104
here can be NULL (become_root() sets the current security token to
NULL for example). Ensure we don't crash.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Thu Dec 2 03:26:03 CET 2010 on sn-devel-104
The new waf-based build system now has all the same functionality, and
the old build system has been broken for quite some time.
Autobuild-User: Jelmer Vernooij <jelmer@samba.org>
Autobuild-Date: Sun Oct 31 02:01:44 UTC 2010 on sn-devel-104
This was orphaned by changing sec_desc_equal() to the stricter
security_descriptor_equal() by
f4195183a4 in 2009.
(The difference here was that sec_acl_equal allowed for equivilent ordering. I've checked the callers, and this function is only used to skip actual ACL sets, or to reference a cache, so this seems
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Sun Oct 24 22:21:23 UTC 2010 on sn-devel-104
The location in MS-DTYPE changed.
Autobuild-User: Matthias Dieter Wallnöfer <mdw@samba.org>
Autobuild-Date: Sat Oct 23 21:33:46 UTC 2010 on sn-devel-104
open and get/set NT security descriptor code.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Thu Oct 21 00:15:57 UTC 2010 on sn-devel-104
Jeremy, you put a #if 0 around this logic in this commit:
8344e945 (Jeremy Allison 2008-10-31 10:51:45 -0700 181)
is this still needed?
Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Thu Oct 14 03:16:41 UTC 2010 on sn-devel-104
The source3/ code uses these constants in a lot of places, and it will
take time and care to rename them, if that is desired. Linking the
macros here will at least allow common code to use the IDL based macros,
and preserve a documentary link between the constants (other than just their value)
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
This will reduce the noise from merges of the rest of the
libcli/security code, without this commit changing what code
is actually used.
This includes (along with other security headers) dom_sid.h and
security_token.h
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Tue Oct 12 05:54:10 UTC 2010 on sn-devel-104
The source3 code repsects the limit of a maximum of 15 subauths,
while the source4 code does not, creating a security issue as
we parse string-form SIDs from clients.
Andrew Bartlett
These are related, but slightly different concepts. The biggest difference
is that rights are not enumerated as a system-wide list.
This moves the rights to security.idl due to dependencies.
Andrew Bartlett
These functions work on the bitmap, and are only exposed because
the source3/ privileges storage uses the bitmap in account_policy.tdb
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
The idea here to to make it very clear how they differ from the
enumerated LUID values.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
This removes some logic recently added that was just too smart - it
is easier to just walk the table and do a bit match here.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
Instead, provide access functions for the LSA and net sam callers
for the information they need.
They still only enumerate the first 8 privileges that have traditionally
been exposed.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
The LSA enumeration in source3 will not show the new privileges,
but otherwise, they are now in common, and can be set by name.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
This ensures there isn't a behaviour change when the source3 list is combined
with the longer source4 list.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
As Samba only deals with the lower 32 bits of the LUID, just return those
and let the LSA layer deal with the upper 0 bits.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
This avoids the use of SE_END, and has all callers walking the
array using the same termination condition.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
