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This implements the note from MS-NRPC 3.1.4.1 Session-Key Negotiation:
7. If none of the first 5 bytes of the client challenge is unique, the
server MUST fail session-key negotiation without further processing of
the following steps.
It lets ./zerologon_tester.py from
https://github.com/SecuraBV/CVE-2020-1472.git
report: "Attack failed. Target is probably patched."
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14497
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This is the check Windows is using, so we won't generate challenges,
which are rejected by Windows DCs (and future Samba DCs).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14497
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This is not strictly needed, but makes things more clear.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14497
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This is not strictly needed, but makes things more clear.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14497
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This will avoid getting rejected by the server if we generate
a weak challenge.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14497
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This will avoid getting flakey tests once our server starts to
reject weak challenges.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14497
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
It's good to have just a single isolated function that will generate
random challenges, in future we can add some logic in order to
avoid weak values, which are likely to be rejected by a server.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14497
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Without printShareName attribute in LDAP, Windows doesn't list the pinters at all.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=9771
Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Sep 18 01:58:22 UTC 2020 on sn-devel-184
Otherwise the test fails because the client is authenticated using
spnego and gse_krb5, not triggering the weak crypto restrictions.
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Autobuild-User(master): David Disseldorp <ddiss@samba.org>
Autobuild-Date(master): Thu Sep 17 00:05:51 UTC 2020 on sn-devel-184
Set a pid file directory to avoid the following testparm error:
ERROR: pid directory /usr/local/samba/var/run does not exist
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
All callers already correctly initialize them.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Autobuild-User(master): Noel Power <npower@samba.org>
Autobuild-Date(master): Tue Sep 15 11:33:35 UTC 2020 on sn-devel-184
Wrapper function internal_resolve_name() is now commented out,
along with the now unused ip_service_to_samba_sockaddr() and
convert_ss2service() functions.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Not yet used. Will help convert _internal_resolve_name() to internal_resolve_name().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Always allocate the return_salist off the frame pointer.
Only talloc_move() to return ctx on successful return.
Cleans up a nasty else in the exit path that caused
problems in the past - we can now always TALLOC_FREE(return_salist)
without remembering if we need to return it.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
NB. sort_service_list() and ip_service_compare() are now no
longer used so comment them out for removal.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Change the internal version from internal_resolve_name() -> _internal_resolve_name().
Only external caller calls internal_resolve_name_sa().
After this we can rename internal_resolve_name_sa() back to internal_resolve_name()
as all internal use in namequery.c is via _internal_resolve_name().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
All callers of internal_resolve_name() are now internal to namequery.c
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Not yet used. Now to fix the callers, and convert internal_resolve_name().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <jra@samba.org>
Re-arranges a samba_sockaddr array in IPv4 preference.
Not yet used so compiles but ifdef'ed out. Needed for conversion
of internal_resolve_name().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Not yet used, will be used when we migrate internal_resolve_name()
to samba_sockaddr.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Callers now don't need to convert. Getting closer to making internal_resolve_name()
return samba_sockaddr array.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <npower@samba.org>
`
Now only get_sorted_dc_list_sa() left.
Now we can remove get_sorted_dc_list() and rename
get_sorted_dc_list_sa() back to get_sorted_dc_list().
One more external user of struct ip_service gone.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
We no longer use cldap_ping_list(), comment it out
for removal.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
Preparing for get_sorted_dc_list() returning such an array.
ifdef'ed out as not yet used.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
