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This is to adapt to Heimdal:
commit 3a5e91eca26284661fd2294dfc485305e5d5cc3d
Author: Nicolas Williams <nico@twosigma.com>
Date: Tue Oct 25 22:20:45 2022 -0500
hcrypto: Remove MD2 with prejudice
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is mainly needed in order to have some interaction
with socket_wrapper 1.4.0 regarding the implementation
of syscall().
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): Wed Jan 18 12:47:48 UTC 2023 on sn-devel-184
The key feature is support for sendmmsg and recvmmsg,
which is required by modern libuv versions, e.g.
nsupdate -g makes use of libuv, so we need this for samba.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
res_randomid() is marked as deprecated in newer glibc.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Dec 21 21:28:42 UTC 2022 on sn-devel-184
ENC_HMAC_SHA1_96_AES256_SK is a flag introduced for by Microsoft in this
CVE to indicate that additionally, AES session keys are available. We
set the etypes available for session keys depending on the encryption
types that are supported by the principal.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15219
Pair-Programmed-With: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15231
Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We need to select server, not client, to compare client etypes against.
(It is not useful to compare the client-supplied encryption types with
the client's own long-term keys.)
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Heimdal's ASN.1 compiler generates code that allows specially
crafted DER encodings of CHOICEs to invoke the wrong free function
on the decoded structure upon decode error. This is known to impact
the Heimdal KDC, leading to an invalid free() of an address partly
or wholly under the control of the attacker, in turn leading to a
potential remote code execution (RCE) vulnerability.
This error affects the DER codec for all CHOICE types used in
Heimdal, though not all cases will be exploitable. We have not
completed a thorough analysis of all the Heimdal components
affected, thus the Kerberos client, the X.509 library, and other
parts, may be affected as well.
This bug has been in Heimdal since 2005. It was first reported by
Douglas Bagnall, though it had been found independently by the
Heimdal maintainers via fuzzing a few weeks earlier.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14929
(cherry-picked from Heimdal commit 9c9dac2b169255bad9071eea99fa90b980dde767)
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Dec 6 13:41:05 UTC 2022 on sn-devel-184
Catch overflows that result from adding PAC_INFO_BUFFER_SIZE.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15203
Heavily edited by committer Nico Williams <nico@twosigma.com>, original by
Joseph Sutton <josephsutton@catalyst.net.nz>.
Signed-off-by: Nico Williams <nico@twosigma.com>
[jsutton@samba.org Zero-initialised header_size in krb5_pac_parse() to
avoid a maybe-uninitialized error; added a missing check for ret == 0]
Autobuild-User(master): Jule Anger <janger@samba.org>
Autobuild-Date(master): Tue Nov 15 17:02:52 UTC 2022 on sn-devel-184
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Nov 9 23:15:07 UTC 2022 on sn-devel-184
We can't unconditionally assume (as we did in
third_party/heimdal_build/wscript_configure) that Heimdal has this type,
since we may have an older system Heimdal that lacks it. We must also
check whether krb5_pac_get_buffer() is usable with krb5_const_pac, and
declare krb5_const_pac as a non-const typedef if not.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is an adaptation to Heimdal:
commit 133f5174820b34e2a12c3f3412bf554cae2ee22f
Author: Daria Phoebe Brashear <dariaphoebe@auristor.com>
Date: Fri Sep 16 09:57:24 2022 -0400
rewrite fallthrough to HEIM_FALLTHROUGH to deal with new Apple SDKs
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): Wed Nov 2 05:21:29 UTC 2022 on sn-devel-184
This commit won't compile on it's own, as we need to fix the build system
to cope in the next commit.
The purpose of this commit is to update to a new lorikeet-heimdal tree
that includes the previous two patches and is rebased on a current
Heimdal master snapshot.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Heimdal's HDB plugin interface, and hence Samba's KDC that depends upon
it, doesn't work on 32-bit builds due to structure fields being arranged
in the wrong order. This problem presents itself in the form of
segmentation faults on 32-bit systems, but goes unnoticed on 64-bit
builds thanks to extra structure padding absorbing the errant fields.
This commit reorders the HDB plugin structure fields to prevent crashes
and introduces a common macro to ensure every plugin presents a
consistent interface.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15110
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We later subtract 8 when calculating the length of the output message
buffer. If padlength is excessively high, this calculation can underflow
and result in a very large positive value.
Now we properly constrain the value of padlength so underflow shouldn't
be possible.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If len_len is equal to total_len - 1 (i.e. the input consists only of a
0x60 byte and a length), the expression 'total_len - 1 - len_len - 1',
used as the 'len' parameter to der_get_length(), will overflow to
SIZE_MAX. Then der_get_length() will proceed to read, unconstrained,
whatever data follows in memory. Add a check to ensure that doesn't
happen.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should make sure that the result of 'total_len - mech_len' won't
overflow, and that we don't memcmp() past the end of the buffer.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
By decrementing 'pad' only when we know it's safe, we ensure we can't
stray backwards past the start of a buffer, which would be undefined
behaviour.
In the previous version of the loop, 'i' is the number of bytes left to
check, and 'pad' is the current byte we're checking. 'pad' was
decremented at the end of each loop iteration. If 'i' was 1 (so we
checked the final byte), 'pad' could potentially be pointing to the
first byte of the input buffer, and the decrement would put it one
byte behind the buffer.
That would be undefined behaviour.
The patch changes it so that 'pad' is the byte we previously checked,
which allows us to ensure that we only decrement it when we know we
have a byte to check.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The surrounding checks all use ct_memcmp(), so this one was presumably
meant to as well.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This allows us to access (and so test) functions internal to GSSAPI by
depending on this subsystem.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As described by the C standard, __func__ is a variable, not a macro.
Hence this #ifndef check does not work as intended, and only serves to
unconditionally disable __func__. A nonoperating __func__ prevents
cmocka operating correctly, so remove this definition.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This allows this type to be used in Samba in the future for
both Kerberos implementations
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This allows the plugin to check the endtime of a ticket against the
KDC's current time, to see if the ticket will expire in the next two
minutes.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Jun 24 22:29:33 UTC 2022 on sn-devel-184
Split lib/krb5/crypto to its own subsystem to built with its own CFLAGS
and avoid the following error:
[1510/4771] Compiling third_party/heimdal/lib/krb5/crypto.c
../../third_party/heimdal/lib/krb5/crypto.c: In function ‘_krb5_internal_hmac’:
../../third_party/heimdal/lib/krb5/crypto.c:302:24: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
302 | iov[0].data.data = (void *) data;
| ^
../../third_party/heimdal/lib/krb5/crypto.c: In function ‘derive_key_sp800_hmac’:
../../third_party/heimdal/lib/krb5/crypto.c:2427:18: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
2427 | label.data = (void *)constant;
| ^
../../third_party/heimdal/lib/krb5/crypto.c: In function ‘decrypt_internal_derived’:
../../third_party/heimdal/lib/krb5/crypto.c:1280:9: error: pointer ‘p’ may be used after ‘realloc’ [-Werror=use-after-free]
1280 | free(p);
| ^~~~~~~
../../third_party/heimdal/lib/krb5/crypto.c:1278:20: note: call to ‘realloc’ here
1278 | result->data = realloc(p, l);
| ^~~~~~~~~~~~~
../../third_party/heimdal/lib/krb5/crypto.c: In function ‘decrypt_internal_enc_then_cksum’:
../../third_party/heimdal/lib/krb5/crypto.c:1365:9: error: pointer ‘p’ may be used after ‘realloc’ [-Werror=use-after-free]
1365 | free(p);
| ^~~~~~~
../../third_party/heimdal/lib/krb5/crypto.c:1363:20: note: call to ‘realloc’ here
1363 | result->data = realloc(p, l);
| ^~~~~~~~~~~~~
../../third_party/heimdal/lib/krb5/crypto.c: In function ‘decrypt_internal’:
../../third_party/heimdal/lib/krb5/crypto.c:1431:9: error: pointer ‘p’ may be used after ‘realloc’ [-Werror=use-after-free]
1431 | free(p);
| ^~~~~~~
../../third_party/heimdal/lib/krb5/crypto.c:1429:20: note: call to ‘realloc’ here
1429 | result->data = realloc(p, l);
| ^~~~~~~~~~~~~
../../third_party/heimdal/lib/krb5/crypto.c: In function ‘decrypt_internal_special’:
../../third_party/heimdal/lib/krb5/crypto.c:1478:9: error: pointer ‘p’ may be used after ‘realloc’ [-Werror=use-after-free]
1478 | free(p);
| ^~~~~~~
../../third_party/heimdal/lib/krb5/crypto.c:1476:20: note: call to ‘realloc’ here
1476 | result->data = realloc(p, sz);
| ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15095
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Samuel Cabrero <scabrero@samba.org>
Autobuild-Date(master): Tue Jun 14 10:16:18 UTC 2022 on sn-devel-184
This fixes building of python libraries with Python 3.11!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15071
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon May 23 09:34:51 UTC 2022 on sn-devel-184
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Apr 4 19:31:28 UTC 2022 on sn-devel-184
find $(pwd) -type f -name "*.sh" | xargs sed -i -e '$a\'
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This fixes the regressions against KDCs without FAST support.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15002
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15005
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Mar 11 18:06:47 UTC 2022 on sn-devel-184
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14865
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Rather than having a 'free_entry' member that can be called to free an
hdb_entry, we now implement the free function in HDB. We perform the
free only if the context pointer is non-NULL.
We also remove the ZERO_STRUCTP() in sdb_entry_to_hdb_entry(), as the
context pointer is now part of the 'hdb_entry' structure itself, and
this would undesirably zero it out.
This is an adaptation to Heimdal commits:
commit c5551775e204d00c7ee8055ab6ddbba7e0590584
Author: Luke Howard <lukeh@padl.com>
Date: Fri Jan 7 12:15:55 2022 +1100
hdb: decorate HDB_entry with context member
Decorate HDB_entry with context and move free_entry callback into HDB structure
itself. Requires updating hdb_free_entry() signature to include HDB parameter.
A follow-up commit will consolidate hdb_entry_ex (which has a single hdb_entry
member) into hdb_entry.
commit 0e8c4ccc6ee0123ea39e53e8917fc3f6bb74e8c8
Author: Luke Howard <lukeh@padl.com>
Date: Fri Jan 7 12:54:40 2022 +1100
hdb: eliminate hdb_entry_ex
Remove hdb_entry_ex and revert to the original design of hdb_entry (except with
an additional context member in hdb_entry which is managed by the free_entry
method in HDB).
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14995
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is an adaptation to Heimdal:
commit 9427796f1a65906f12768b28abdb5a928222f3c6
Author: Jeffrey Altman <jaltman@secure-endpoints.com>
Date: Wed Jan 5 15:45:23 2022 -0500
Generate .x source files as .c source files
The generated .x source and .hx header files are plain C source files.
Generate them as .c source files and avoid unnecessary file copying
and special makefile rules.
Change-Id: Ifc4bbe3c46dd357fdd642040ad964c7cfe1d395c
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14995
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is an adaptation to Heimdal:
commit 0287558838de79313e38026d2f0905ffc987d0b8
Author: Luke Howard <lukeh@padl.com>
Date: Fri Dec 24 13:49:55 2021 +1100
kdc: move Services for User implementation out of krb5tgs.c
Move the Services for User (SFU/S4U) implementation -- protocol transition and
constrained delegation -- into its own compilation unit, with an interface that
only takes an astgs_request_t, so it can be easily factored out into a plugin
module in the future.
This refactoring is also careful to update all client names in the request
structure after the SFU/S4U validation has successfully completed.
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14995
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is an adaptation to Heimdal:
commit fcff5933ade652343d7c169659da92fac0e6e0d4
Author: Luke Howard <lukeh@padl.com>
Date: Mon Jan 3 11:10:18 2022 +1100
kdc: rename windc to kdc plugin
Rename the "windc" plugin API to the more general "kdc" plugin API, for two
reasons: the Heimdal KDC uses the Windows PAC even when not emulating a domain
controller, and the plugin API has accreted methods that are not specific to
emulating a domain controller (such as referral_policy and finalize_reply).
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14995
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is an adaptation to Heimdal:
commit be708ca3cf98900c61919f8ff7ced4428b5d1f32
Author: Nicolas Williams <nico@twosigma.com>
Date: Wed Dec 22 17:01:12 2021 -0600
gsskrb5: Add simple name attributes support
This adds Kerberos mechanism support for:
- composite principal name export/import
- getting rudimentary name attributes from GSS names using
gss_get_name_attribute():
- all (raw) authorization data from the Ticket
- all (raw) authorization data from the Authenticator
- transit path
- realm
- component count
- each component
- gss_inquire_name()
- gss_display_name_ext() (just for the hostbased service name type
though)
The test exercises almost all of the functionality, except for:
- getting the PAC
- getting authz-data from the Authenticator
- getting the transit path
TBD (much) later:
- amend test_context to do minimal name attribute checks as well
- gss_set_name_attribute() (to request authz-data)
- gss_delete_name_attribute()
- getting specific authorization data elements via URN fragments (as
opposed to all of them)
- parsing the PAC, extracting SIDs (each one as a separate value)
- some configurable local policy (?)
- plugin interface for additional local policy
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14995
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14995
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
