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This is a helper module to construct conditional ACEs that can't be
created from SDDL.
There is a semi-infinite number of valid conditional ACEs that don't
have SDDL representations, and an even larger number of invalid (or
borderline invalid) ACEs.
This allows us to create those ACEs without having to deal with too
many array of numbers.
The next commit provides an example of its use.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
When a test fails, this prints a little stanza like
static void test_something(void **state)
{
INIT();
USER_SIDS("WD", "AA");
DEVICE_SIDS("BA", "BG");
SD("D:(XA;;0x1f;;;AA;(! Member_of{SID(AA)}))");
DENY_CHECK(0x10);
}
which is exactly right for copying into
libcli/security/tests/test_run_conditional_ace.c
which is much easier to iterate over with compiling and debugging.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Sometimes we need security tokens for tests, and the raw constructor
is not very ergonomic. This wraps it so you can do this:
from samba.tests.token_factory import token as Token
t = Token(['WD', 'AA'],
privileges=['SEC_PRIV_DEBUG'],
rights=0x840,
device_claims={'wheels': 2, 'smelly': 'no'},
device_sids=['BG'])
and get a security.token object with the expected qualities.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Before we had to do this in an environment variable. In that case we
are probably wanting to monitor changes, so we like it to print more
messages than we want to see in an autobuild run that will hopefully
never do anything interesting.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Currently a test suite needs a strings list in order to import new
strings. This lets us avoid that and have the actual tests defined
only in external lists, making it easier to see we're testing the same
thing on Windows and reducing duplication.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These tests were named in the superclass, but were not actually run,
nor was the file in git.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This makes it easy to separate a large number of examples into
successes and knownfails.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We have two sets of tests: one that will succeed, and one that is going
to remain a knownfail. The latter involves Resource Attribute ACEs that
have the TX type, meaning "byte string".
In MS-DTYP, a bytestring is defined like "#6869210a", with a hash,
followed by an even number of hex digits. In other places on the web, it
is mentioned that zeroes in the string can be replaced by hashes, like so
"#686921#a". We discover via indirect fuzzing that a TX RA ACE can also
take bare integers, like "6869210a" or "2023". As it would be tricky to
support this, and there is no evidence of this occurring in the wild, we
will probably leave this as a knownfail.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
ACL revision 4 (SECURITY_ACL_REVISION_ADS) is effectively a superset
of revision 2 (SECURITY_ACL_REVISION_NT4), so any revision 2
ACL can be called revision 4 without any problem. But not vice versa:
a revision 4 ACL can contain ACE types that a revision 2 ACL can't. The
extra ACE types relate to objects.
Samba currently simplifies things by calling all its ACLs revision 4,
even if (as is commonly the case) the ACLs contain only revision 2 ACEs.
On the other hand, Windows will use revision 2 whenever it can. In other
tests we skip past this by forcing Windows ACLs to v4 before comparison.
This test is to remind us of the incompatibility.
It would not be hard to fix.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If there are multiple identical ACEs in an SDDL ACL, Windows will decode
them all and put extra trailing zeroes at the end of the ACL.
In contrast, Samba will decode the ACEs and not put extra zeroes at the
end.
The problem comes when Samba tries to read a binary ACL from Windows that
has the extra zeroes, because Samba's ACL size calculation is based on
the size of its constituent ACEs, not the ACL size field.
There is no good reason for an ACL to have repeated ACEs, but they could
be added accidentally.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This matters when we have a millions failures.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Always offer it, it's a client thing to ask for it or not.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-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 Sep 21 17:43:23 UTC 2023 on atb-devel-224
This variable is used not only for client claims, but for device claims
as well.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
384 bytes is not a strict threshold below which claims are never to be
compressed. Windows has been known to compress claims a mere 368 bytes
in size.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The blob was taken from a smbclient allinfo command for a Windows
symlink. Show that reparse_data_buffer_parse() is broken.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This way we can run the tests and more easily put them into knownfail
individually. Before this, everything went into the error category,
which was not so easy to catch in something like knownfail.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The '2' is a version number, but there is not yet a version 2, so we
can't even say what the rest of the string should look like.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Inexplicable behaviour could result when the same arguments were passed
in across multiple calls.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Because ‘found_logon_info’ was invariably true, we would miss the case
in which set_pac_sids() failed to accomplish anything, having been
unable to find the LOGON_INFO PAC buffer.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We can now rely on having MIT Kerberos 1.20 available.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
readfp() is deprecated and could be removed in a future version of
Python.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
assertEquals() is deprecated and could be removed in a future version of
Python.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We were intending to check the keys, not the certificates.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Rename a variable that shadows an import of ‘gp_ext’.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We were passing in as the name parameter to assert_tombstoned() an NDR
Python object, rather than a string. This meant that the LDAP search
filter would look something like this:
(&(objectClass=dnsNode)(name=<dnsp.DnssrvRpcRecord talloc based object at 0x29abee0>))
and we would fail to find any records.
These searches should have a better chance of working if we pass in the
name of the record instead.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
`cache_get_all_attribute_values` returns a dict whereas we need to pass
a list of keys to `remove`. These will be interpolated in the gpdb search.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Aug 28 03:01:22 UTC 2023 on atb-devel-224
For this we need to stage a Registry.pol file with certificate
autoenrollment enabled, but with checkboxes unticked.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
If certificate templates are added or removed, the autoenroll extension
should react to this and reapply the policy. Previously this wasn't
taken into account.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
Ensure that cepces-submit reporting additional templates and re-applying
will enforce the updated policy.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
I don't know whether this applies universally, but in our case the
contents of `es['cACertificate'][0]` are binary, so cleanly converting
to a string fails with the following:
'utf-8' codec can't decode byte 0x82 in position 1: invalid start byte
We found a fix to be encoding the certificate to base64 when
constructing the CA list.
Section 4.4.5.2 of MS-CAESO also suggests that the content of
`cACertificate` is binary (OCTET string).
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
This fails all GPO-related tests that call `gpupdate --rsop`.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
On Ubuntu, certificates must end in '.crt' in order to be considered by
the `update-ca-certificates` helper.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
This is used on RHEL/Fedora instead of update-ca-certificates. They
behave similarly so it's enough to change the command name.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
In addition to the SUSE global trust directory, add support for RHEL and
Debian-based distributions (including Ubuntu).
To determine the correct directory to use, we iterate over the variants
and stop at the first which is a directory.
In case none is found, fallback to the first option which will produce a
warning as it did previously.
Signed-off-by: Gabriel Nagy <gabriel.nagy@canonical.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@samba.org>
Can Samba understand Windows security descriptors? Does it parse SDDL
the same way?
Here we test on over 7000 SDDL/descriptor pairs and find the answer
is pleasing. In later commits we will add more tests using different
classes of ACE.
The test cases are derived from fuzz seeds, exported to Windows via
the script in the last commit, with the Windows descriptor bytes found
using libcli/security/tests/windows/windows-sddl-test.py.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Sometimes colour can help show what is different between two strings.
This is roughly the same as
`git diff --no-index --color-words=. <a> <b>`.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We want realistic examples for sddl fuzzing seeds, and we want
realistic examples for sddl tests, so hopefully we only need to get
it right once.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We had a stupid system involving test functions with side-effects,
that needed to be enabled by editing the file. Now you get the same
effects by setting environment variables, the names of which you can
only learn by reading the file closely.
This works better because some stuff needs to happen at class-time
rather than instance-time.
Also the environment variables specify the import and export locations.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We presumably here meant to use the variable ‘contents’, not
‘test_contents’.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We now create the claims in setUp() only once, preserving them so as to
reuse them across all of the tests using this class. Then we finally
delete them all in tearDownClass().
addClassCleanup() could make this cleaner, but it’s available only in
Python 3.8 and above.
This change reduces the time taken by my machine to run
samba.tests.samba_tool.domain_auth_policy from two minutes to ten
seconds.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We now create the claims in setUp() only once, preserving them so as to
reuse them across all of the tests in this class. Then we finally delete
them all in tearDownClass().
addClassCleanup() could make this cleaner, but it’s available only in
Python 3.8 and above.
This change reduces the time taken by my machine to run these tests from
four minutes to twenty seconds.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Now that the INT64 claim IDL definition has been corrected, these tests
should pass against Windows.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15452
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): Tue Aug 15 19:41:50 UTC 2023 on atb-devel-224
This class provides a useful base for other tests to build upon.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We want to be able to reuse them across several tests.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should not have two unrelated classes both named SimpleKerberosTests.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We might want to create an account with an assigned silo or policy in
setUp() or setUpClass() to be reused in subsequent tests.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is the version we test with in CI after the image update
in the next commit. This addresses the issues that were
fixed in CVE-2022-37967 (KrbtgtFullPacSignature) and ensures
that Samba builds against the MIT version that allows us to
avoid that attack.
The hooks to allow these expectations to be disabled in the tests
are kept for now, to allow this to be reverted or to test
older servers.
With MIT 1.21 as the new test standard for the MIT KDC build
we update the knownfail_mit_kdc - this was required regadless
after the CI image update.
Any update to the CI image, even an unrelated one, brings in
a new MIT Krb5, version 1.21-3 in this case. This has new
behaviour that needs to be noted in the knownfail files or
else the tests, which haven't changed, will fail and
pipelines won't pass.
(The image generated by the earlier bootstrap commit brought
in krb5-1.21-2 which was buggy with CVE-2023-39975)
Further tweaks to tests or the server should reduce the number
of knownfail entries, but this keeps the pipelines passing for now.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15231
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sun Aug 13 22:54:55 UTC 2023 on atb-devel-224
