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User2User tgs requests use the session key of the additional
ticket instead of the long term keys based on the password.
In addition User2User also asserts that client and server
are the same account (cecked based on the sid).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15492
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Oct 16 15:38:12 UTC 2023 on atb-devel-224
This is to adapt to Heimdal:
commit 3c4548025c0a239ff580e7974939185eadf1856b
Author: Nicolas Williams <nico@twosigma.com>
Date: Sun Jun 4 22:54:03 2023 -0500
hdb: Add auth-data-reqd flag
NOTE: This commit finally works again!
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is now consistent with Heimdal, and with our usage of time_t
elsewhere.
NOTE: This commit finally works again!
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This corresponds with the HDB_F_ARMOR_PRINCIPAL flag in Heimdal, and
indicates a lookup of an armor ticket client principal, rather than the
principal of the main TGT. This helps us to determine whether an
authentication policy will apply to a principal acting as a client, and
hence whether we have to look up the policy in the database.
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>
We need to take the value from the msDS-SupportedEncryptionTypes
attribute and only take the default if there's no value or
if the value is 0.
For krbtgt and DC accounts we need to force support for
ARCFOUR-HMAC-MD5 and AES encryption types and add the related bits
in addtition. (Note for krbtgt msDS-SupportedEncryptionTypes is
completely ignored the hardcoded value is the default, so there's
no AES256-SK for krbtgt).
For UF_USE_DES_KEY_ONLY on the account we reset
the value to 0, these accounts are in fact disabled completely,
as they always result in KRB5KDC_ERR_ETYPE_NOSUPP.
Then we try to get all encryption keys marked in
supported_enctypes, and the available_enctypes
is a reduced set depending on what keys are
actually stored in the database.
We select the supported session key enctypes by the available
keys and in addition based on AES256-SK as well as the
"kdc force enable rc4 weak session keys" option.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13135
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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>
This is the first step to return the password history
in order to avoid badPwdCount updates for failing
pre-authentication with passwords from the recent history.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14054
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Both layers are owned by us so there's no need for an void
pointer.
This simplifies the code a lot and allows further cleanups.
Eventually we can remove sdb_entry_ex and only use sdb_entry,
as Heimdal also removed hdb_entry_ex.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
It seems we need to take a closer look at the
memory hierachy of the sdb_entry related code.
I'll check that during the next commits,
but for now just remove use the unused hook.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not related to the kvno of the key,
the mkvno tells the HDB layer that the keys need to
be decrypted with a master key (with the given [m]kvno).
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
For most flags the mapping is 1 to 1, but it's not always
the case anymore.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14960
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This is needed to give hdb_samba4 the full control over the returned
principal, rather than the new code in the Heimdal KDC.
Including changes selected from code by Stefan Metzmacher <metze@samba.org>
in his Heimdal upgrade branch.
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Including updates to hook into the improved hdb_auth_status
by Stefan Metzmacher <metze@samba.org> from his Heimdal
upgrade branch.
NOTE: THIS COMMIT WON'T COMPILE/WORK ON ITS OWN!
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
See also
ac8865a221
Pair-Programmed-With: Andreas Schneider <asn@samba.org>
Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon Nov 29 09:32:26 UTC 2021 on sn-devel-184
