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smb_krb5_make_data() sets the magic field, which we were previously
ignoring. We should also not set krb5_data::length if krb5_data::data is
NULL.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This flag was set in commit 461dc44e74,
but only in mit_samba_reget_pac(); it was not set in the newer function,
mit_samba_update_pac(), used with MIT Kerberos 1.20 and above.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The oldest version we now support is 1.21. For every supported version
we can be certain that KRB5_KDB_API_VERSION >= 10 and
KRB5_KDB_DAL_MAJOR_VERSION >= 9.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
In hdb_samba4_audit(), ERR_GENERIC signals an unexpected situation — if
we encounter that error code while running under selftest, we’ll panic.
In response to an expected event such as the failure of
authsam_logon_success_accounting(), it’s more appropriate to continue to
run.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Add a new function, get_claims_set_for_principal(), that returns the
claims as a CLAIMS_SET structure rather than as a blob. To accommodate
this, move the call to encode_claims_set() out of get_all_claims() and
into get_claims_blob_for_principal().
Being able to get the unencoded claims will save us from having to
decode claims that we just needlessly encoded.
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): Mon Aug 14 05:51:45 UTC 2023 on atb-devel-224
Just to make perfectly clear that it is an out parameter.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This change will simplify things later. Probably.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Also check whether the message is NULL. Passing NULL to vasprintf() is
undefined behaviour.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Wrapping a function this simple doesn’t gain us very much.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As the server authentication policy will be non-NULL only for entries
looked up as servers, the krbtgt shouldn’t have an authentication policy
anyway. But we might as well be explicit.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This function doesn’t require a heap allocation.
We also check the result of the function, which we weren’t doing before.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This change ultimately won’t make much difference to responses, as
unrecognized codes are mapped to ERR_GENERIC in any case. But it might
provide some help for debugging.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If we’re going to zero the keys before freeing them, we might as well do
it properly.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If we exited this function early due to an error, h->len would contain
the number of elements that *ought* to be in h->val, but not all of
those elements must have been initialized. Subsequently trying to free
this partially-uninitialized structure with free_Keys() could have bad
results.
Avoid this by ensuring that h->len accurately reports the actual number
of initialized elements.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
To these conversion functions we sometimes pass malloc-allocated HDB
structures, which we free afterwards if conversion fails. If parts of
these structures are still uninitialized when we try to free them, all
sorts of fun things can result.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If the data was received over TCP, it would have had four bytes
subtracted from its length already, in kdc_tcp_call_loop().
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This condition was written backwards — if samba_kdc_fetch() returned
zero, we would ignore any error code returned by
sdb_entry_to_hdb_entry().
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Use a temporary context to allocate these variables. Each variable that
needs to be transferred to the caller is stolen onto an appropriate
talloc context just prior to the function’s returning.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This simplifies the ‘out’ paths.
Every code path that reaches ‘out’ via a goto ensures that ‘ret’ is set
to a nonzero value.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should take the common ‘out’ path to ensure that we call
sdb_entry_free() on the entry.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The value of entry->etypes->len ought to be equal to that of
entry->keys.len, and so should be nonzero. But it’s safer not to rely on
that assumption.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We must not pass a NULL pointer into dom_sid_split_rid().
While we’re at it, switch to using samdb_result_dom_sid_buf(), which
doesn’t require a heap allocation.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If smb_krb5_make_principal() fails without setting the principal,
sdb_entry_free() will try to free whatever memory the uninitialized
member points to.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If an authentication policy enforces a maximum TGT lifetime for a
Protected User, that limit should stand in place of the four-hour limit
usually applied to Protected Users; we should nevertheless continue to
ensure that forwardable or proxiable tickets are not issued to such
users.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
IMO, this code is easier to read if the reader can tell at a glance what
the values of these enumerations are, rather than having to think about
where the values come from.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We don’t need two copies of the same comment.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Thu Aug 3 15:25:01 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>
We log a warnings if access is not granted from a security descriptor in
msDS-AllowedToActOnBehalfOfOtherIdentity, so we should use the same log
level if msDS-AllowedToActOnBehalfOfOtherIdentity is not available at
all.
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): Tue Jun 27 06:39:08 UTC 2023 on atb-devel-224
This is consistent with the behaviour of the existing function
_authn_policy_access_check() and of Windows.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
samba_kdc_check_s4u2proxy() is never going to return an SDB_* error
code, so these conditions can never be hit.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Jun 26 12:11:30 UTC 2023 on atb-devel-224
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
As we don't support the Claims Transformation Algorithm [MS-CTA]
we better clear claims as they have no valid meaning in our domain.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is so that we can have them point to ‘null_data’ if we so choose.
We can’t assign the result of data_blob_talloc() to a const pointer, so
we go through an intermediary non-const pointer for the
device_claims_blob case.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
pac_blobs_add_blob() already checks whether the blob argument is NULL,
and skips adding the blob if so.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
For now we only pass in the krbtgt that verified the client pac
and optionally the krbtgt that verified the device pac.
These can be different depending on the domain of the related
principals.
If we want to apply SID filtering in future we may also need
to pass in the krbtgt that verified the delegated_proxy_pac,
but that needs more research and if not required for the
following changes.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
For a constrained delegation request, we need to pass ‘delegated_proxy’
(and the delegated proxy PAC, if one was provided) into
samba_kdc_update_pac() so that we can verify that the delegating server
is allowed to authenticate to the target server.
The ‘const’ is entirely unnecessary in a function declaration, but we
add it just to be consistent.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
NOTE: This commit finally works again!
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Such errors were not logged in the past, either, but that was accidental
— a result of failing too early for an authentication event to be set —
rather than the auditing being deliberately designed that way.
Now that we have added the KDC_AUTH_EVENT_CLIENT_FOUND event, we want to
ensure that PREAUTH_REQUIRED errors continue to go unlogged.
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>
Reviewed-by: Stefan Metzmacher <metze@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>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Commit 6bd3b4528d diverged the const
declarations in the header, this brings them back in alignnment as
is Samba's normal practice.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Jun 26 00:26:37 UTC 2023 on atb-devel-224
We subsequently dereference the result without performing a NULL check.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
‘client->context’ is too long-lived to use for allocating short-term
data.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
A negative condition incurs more cognitive load.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This will help to reduce code duplication and the number of branching
code paths.
View with ‘git show -b’.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We may not always want this SID to be present. For example, to enforce
authentication policies as Windows does, we’ll want the client’s
security token without this SID.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Previously this function obtained the auth_user_info_dc structure, then
used it to update the PAC blob. Now it does only one thing: fetch the
auth_user_info_dc info and return it to the caller, who can then call
samba_get_logon_info_pac_blob().
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This gives it more control over the final Kerberos error code, so that
we won’t always get ERR_GENERIC.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This ensures that we always clean up resources.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The ‘const’ is entirely unnecessary in a function declaration, but we
add it just to be consistent.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
It means that using the old or older password no longer
changes badPwdCount for Kerberos authentication.
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>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sat Jun 24 07:18:03 UTC 2023 on atb-devel-224
This is important in order to prevent ACCOUNT_LOCKED_OUT
with cached credentials.
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>
Samba security features like AD claims, Authentication Policies and
Authentication Silos are enabled once the DC is at the required functional level.
We comment at the callers of of dsdb_dc_functional_level() to explain
why we do this.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
All that uses the FAST cookie is the gss-preauth authentication
mechanism, which is untested in Samba, and disabled by default.
Disabling the FAST cookie code (and sending a dummy string instead)
relieves us of the maintenance and testing burden of this untested code.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Wed Jun 21 13:19:17 UTC 2023 on atb-devel-224
If the ‘server_audit_info_out’ parameter is non-NULL, auditing
information will be returned so that it might be logged.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This will provide more detail to be logged.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We’re going to extend this code, and so we will require functions from
the utility module.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If the ‘audit_info_out’ parameter is non-NULL, auditing information will
be returned so that it might be logged.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This more clearly indicates that it is the raw TGT lifetime value
straight from the database.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This ensures that this code will still be usable by other libraries and
subsystems if Samba is built with ‘--without-ad-dc’.
We also drop dependencies on ‘ldb’ and ‘talloc’ that we shouldn’t have
needed anyway.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This makes it clearer that we are assigning a value to both together.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If a client was authorized, we would ignore the Kerberos error code and
just log the return value of authsam_logon_success_accounting().
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is more consistent with the non-NULL parameters, and makes it
easier to swap in the real values when we get them.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is consistent with the other uses in this file (in
authn_policy_ntlm_client() and authn_policy_server()).
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These functions are used only internally.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
‘user_info_dc->sids’ must live for at least as long as ‘user_info_dc’,
or a use-after-free may result.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
KRB5_PADATA_PW_SALT is wrong. It’s an unrelated constant that just
happens to share the same value.
Heimdal uses the correct constant, kERB_ERR_TYPE_EXTENDED.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The ticket returned by kdc_request_get_ticket() is the main TGT
presented in a TGS-REQ. If we’re verifying a FAST armor ticket or a
user-to-user ticket, make sure we check the lifetime of that ticket
instead. To do this we need to pass the appropriate ticket into the
plugin function.
NOTE: This commit finally works again!
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): Thu May 18 05:49:31 UTC 2023 on atb-devel-224
This is now handled by the hdb_samba4_set_ntstatus() call above.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If an NTSTATUS code has been set in the KDC request structure, encode it
as KERB-ERROR-DATA and add it to the KDC reply.
hdb_samba4_set_ntstatus() adds the NTSTATUS code to the request
structure.
hdb_samba4_get_ntstatus() gets that status code back from the request
structure.
hdb_samba4_set_edata_from_ntstatus() encodes the status code and adds it
to the reply.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Our KDC plugin can use this to store NTSTATUS codes that can be added to
the final KDC reply later.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This now matches the return type of the function.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We dereference this pointer immediately after this call, so we should be
sure it is not NULL.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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): Thu May 18 01:58:24 UTC 2023 on atb-devel-224
Ensure we get exactly one object back, or an error.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We now have this information in the ldb_message.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The ldb_message contains more information than just the DN, such as
which authentication policy or silo is assigned.
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>
These functions are not yet used.
They are arranged into two libraries: ‘authn_policy’, containing the
core functions, and ‘authn_policy_util’, containing utility functions
that can access the database. This separation is so that libraries
depended upon by ‘samdb’ or ‘dsdb-module’ can use the core functions
without introducing a dependency cycle.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Just copying the structure fields is prone to lead to use-after-frees if
we access them after the original structure and its fields are freed.
Instead, call authsam_shallow_copy_user_info_dc() to make the copy. This
properly references the fields in the original structure so that they
will not be freed until we are sure we have finished with them.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We don’t need the whole session info structure to perform an access
check.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
pac-glue.c has become rather large, and can do without these PAC
blob–handling functions.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Doing so is undefined behaviour.
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): Fri May 5 03:52:30 UTC 2023 on atb-devel-224
‘tmp’ has already been freed by this point.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should not allocate memory on a longer-lived context than necessary.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
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): Fri Mar 31 09:30:17 UTC 2023 on atb-devel-224
We now create a client claims blob and add it to the PAC.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
get_claims_for_principal() is a new function that creates a claims blob
for a principal based on attributes in the database.
It's not hooked into the KDC yet, so this entails no change in
behaviour.
Constructed claims and certificate claims are not supported yet.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is to adapt to the changed Heimdal KDC plugin API.
When we add support for device claims, we want to be able to verify the
PAC of the armor ticket without modifying or updating it. Previously, we
couldn't do this as the two operations were tightly intertwined. Now the
parts that only perform verification are split out into a new function,
samba_kdc_verify_pac().
NOTE: This commit finally works again!
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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 Mar 22 19:36:28 UTC 2023 on atb-devel-224
Instead of having one large function that returns every PAC blob, we now
have a more manageable assortment of smaller functions that each return
one blob.
That gives us more fine-grained handling of PAC blobs, with callers now
able to procure only the specific blobs that they need.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This will not be the only claims blob. Later there will also be a
device_claims_blob.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
samba_kdc_get_pac_blobs() passes a pointer to a user_info_dc structure
obtained from samba_kdc_get_user_info_from_db() into
samba_add_asserted_identity(). The latter function modifies the SIDs of
the user_info_dc structure in order to add the Asserted Identity SID,
but samba_kdc_get_user_info_from_db() actually caches that structure
internally, meaning that subsequent calls will return the modified
structure.
We should not modify cached SIDs, so have
samba_kdc_get_user_info_from_db() return a pointer to constant data, and
copy the returned array of SIDs before adding the Asserted Identity SID.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Windows only consults the PAC-OPTIONS claims bit to find out whether or
not to add claims to the PAC if the ClaimsCompIdFASTSupport option is
set to 1. If this option is set to 2 or 3, the bit is ignored and claims
are always added.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These will be used later when we add support for compound
authentication.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Heimdal contains an assertion that the data pointer is not NULL. We need
to pass in a pointer to some dummy data instead.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Until we support claims we just return an empty blob,
that matches what Windows is doing without defined claims.
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): Mon Mar 20 01:25:07 UTC 2023 on atb-devel-224
It's getting unwieldy adding new PAC buffer types when each one has to
have its own handling. It also makes the possibility of mistakes more
likely.
Add a new container, 'struct pac_blobs', containing the types of PAC
buffers in a given PAC, with an index for quick access to the types we
support specifically. We can add new blobs (overriding existing ones) by
calling pac_blobs_add_blob(), and override certain blobs that must be
present with pac_blobs_replace_existing().
This removes the need to have a complicated 'switch' statement with
different logic for each PAC buffer type, or a dozen index variables.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
krb5_pac_add_buffer() makes its own copy of the data we pass in. We
don't need to make yet another copy.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Heimdal contains an assertion that the data pointer is not NULL. We need
to pass in a pointer to some dummy data instead.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As these parameters are not assigned to, make them const.
Const specifiers for non-pointer types, such as in 'const
krb5_principal', don't do anything in function declarations. Remove
them.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Make it clear what these parameters actually are.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
A double negative is just confusing and prone to error.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
It is up to the caller to choose if it wants to clean up the user_info_dc
memory early, we do so only in the KDC as was allocated on a context
provided to samba_kdc_update_pac_blob(), whereas auth_winbind uses
a locally managed tevent state as the memory context.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Feb 8 01:05:47 UTC 2023 on atb-devel-224
Arrays of SIDs are handled not fully consistently throughout the
codebase. Sometimes SIDs in the first and second positions represent a
user and a primary group respectively; other times they don't mean
anything in particular. Using these index constants in situations of the
former sort can help to clarify our intent.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The combination MANDATORY | ENABLED_BY_DEFAULT | ENABLED is very
commonly used, and introducing a shorter alias for it makes the code
clearer.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The domain-local groups that are added to the PAC of a service ticket
are now, if the service doesn't disclaim support for SID compression,
placed into the resource groups structure in PAC_LOGON_INFO.
In a TGS exchange directed to a KDC, rather than to a service, the
resource groups structure is simply copied into the updated PAC without
any processing being done.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Besides the NETLOGON_GUEST bit indicating whether the user has been
authenticated, we now carry all of the other bits as well. This lets us
match Windows' behaviour of simply passing these bits through to an
updated PAC when processing a TGS-REQ.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Resource group SIDs should only be placed into a service ticket, but we
were including them in all tickets. Now that we have access to the group
attributes, we'll filter out any groups with SE_GROUP_RESOURCE set if
we're creating a TGT.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Group expansion, performed in dsdb_expand_nested_groups(), now
incorporates a check of the type of each group. Those that are resource
groups receive the SE_GROUP_RESOURCE bit in the attributes which are now
carried alongside each group SID.
Whereas before, in auth_convert_user_info_dc_sambaseinfo() and
auth_convert_user_info_dc_saminfo6(), we invariantly used the flag
combination SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT |
SE_GROUP_ENABLED to set attributes in the PAC, we now take the correct
attributes from user_info_dc.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
FreeBSD has ENOATTR but not ENODATA, Linux has ENODATA but not ENOATTR for
returning "attr does not exist". With 2eb899de6a we settled on ENOATTR to
handle this case.
Alternatively we could
#define ENODATA ENOATTR
on FreeBSD...
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: douglas.bagnall@catalyst.net.nz
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Jan 19 09:24:15 UTC 2023 on atb-devel-224
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>
In order to allow better upgrades we need the default value for smb.conf to the
same even if the effective default value of the software changes in future.
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>
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>
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>
As part of matching the behaviour of Windows, assume that trust objects
support AES256, but not RC4, if not specified otherwise.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15219
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>
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=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 pass the stack variable 'req' to dcerpc_winbind_SendToSam_r_send(),
so we need to make sure the runtime of the subreq in not longer
than the stack variable.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15253
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The blob will be empty until we properly support claims.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This allows us to add claims blobs to the PAC once we have the ability
to create them.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The name of the context looks like it should match the name of the
function, but doesn't quite.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Heimdal's 'data->length > 0' assertion in krb5_pac_add_buffer() is gone
as of f33f73f82f, so we no longer need to
specify a non-zero length.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This function is longwinded and needlessly allocates intermediary
buffers. Simplify it.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If the account has been locked out in the meantime (indicated by
NT_STATUS_ACCOUNT_LOCKED_OUT), we should return the appropriate error
code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If we find that the user has been locked out sometime during the request
(due to a race), we will now return an error code.
Note that we cannot avoid the MIT KDC aspect of the issue by checking
the return status of mit_samba_zero_bad_password_count(), because
kdb_vftabl::audit_as_req() returning void means we cannot pass on the
result.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This simplifies the code for the following commit.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Sep 12 03:27:55 UTC 2022 on sn-devel-184
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Sep 8 23:34:15 UTC 2022 on sn-devel-184
If TGTs can be used as kpasswd tickets, the two-minute lifetime of a
authentic kpasswd ticket may be bypassed. Furthermore, kpasswd tickets
are not supposed to be cached, but using this flaw, a stolen credentials
cache containing a TGT may be used to change that account's password,
and thus is made more valuable to an attacker.
Since all TGTs should be issued with a REQUESTER_SID PAC buffer, and
service tickets without it, we assert the absence of this buffer to
ensure we're not accepting a TGT.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15049
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
To ensure that, when decrypting the kpasswd ticket, we look up the
correct principal and don't trust the sname from the ticket, we should
pass the principal name of the kpasswd service into krb5_rd_req_ctx().
However, gensec_krb5_update_internal() will pass in NULL unless the
principal in our credentials is CRED_SPECIFIED.
At present, our principal will be considered obtained as CRED_SMB_CONF
(from the cli_credentials_set_conf() a few lines up), so we explicitly
set the realm again, but this time as CRED_SPECIFIED. Now the value of
server_in_keytab that we provide to smb_krb5_rd_req_decoded() will not
be NULL.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
This plugin is now only used by the kpasswd service. Thus, ensuring we
only look up the kadmin/changepw principal means we can't be fooled into
accepting tickets for other service principals. We make sure not to
specify a specific kvno, to ensure that we do not accept RODC-issued
tickets.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
This makes explicitly clear the purpose of this keytab.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
We would only compare the first 'n' characters, where 'n' is the length
of the principal component string, so 'k@REALM' would erroneously be
considered equal to 'krbtgt@REALM'.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
A fallback in krb5_rd_req_ctx() means that Samba's kpasswd service will
try many inappropriate keys to decrypt the ticket supplied to it. For
example, it will accept a ticket encrypted with the Administrator's key,
when it should rather accept only tickets encrypted with the krbtgt's
key (and not an RODC krbtgt). To fix this, declare the HDB keytab using
the HDBGET ops, which do not support iteration.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
For Heimdal, this now matches the behaviour of Windows. The object of
this requirement is to ensure we don't allow kpasswd tickets, not having
a lifetime of more than two minutes, to be passed off as TGTs.
An existing requirement for TGTs to contain a REQUESTER_SID PAC buffer
suffices to prevent kpasswd ticket misuse, so this is just an additional
precaution on top.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
This matches the behaviour of Windows.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Since this principal goes through the samba_kdc_fetch_server() path,
setting the canonicalisation flag would cause the principal to be
replaced with the sAMAccountName; this meant requests to
kadmin/changepw@REALM would result in a ticket to krbtgt@REALM. Now we
properly handle canonicalisation for the kadmin/changepw principal.
View with 'git show -b'.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
Pair-Programmed-With: Andreas Schneider <asn@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
This eliminates some duplicate branches.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Pair-Programmed-With: Andreas Schneider <asn@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
The error_data we create already has an explicit length, and should not
be zero-terminated, so we omit the trailing null byte. Previously,
Heimdal builds would leave a superfluous trailing null byte on error
strings, while MIT builds would omit the final character.
The two bytes added to the string's length are for the prepended error
code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15049
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
The target principal and realm fields of the setpw structure are
supposed to be optional, but in MIT Kerberos they are mandatory. For
better compatibility and ease of testing, fall back to parsing the
simpler (containing only the new password) structure if the MIT function
fails to decode it.
Although the target principal and realm fields should be optional, one
is not supposed to specified without the other, so we don't have to deal
with the case where only one is specified.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15049
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
The KRB5_KDB_FLAG_REFERRAL_OK is to indicate wether a realm referral is
allowed. In AD this is always allowed. Also there is no way to pass that
indication to the SamDB layer.
Pair-Programmed-With: Andreas Schneider <asn@samba.org>
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Samuel Cabrero <scabrero@samba.org>
Autobuild-Date(master): Mon Jul 4 12:22:16 UTC 2022 on sn-devel-184
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Windows only requires SEC_ADS_CONTROL_ACCESS for the check to pass.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Jun 14 15:38:23 UTC 2022 on sn-devel-184
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Because the KDC does not limit protocol transition (S4U2Self), two new
well-known SIDs are available to give this control to the resource
administrator. These SIDs identify whether protocol transition (S4U2Self) has
occurred, and can be used with standard access control lists to grant or limit
access as needed.
See
https://docs.microsoft.com/en-us/windows-server/security/kerberos/kerberos-constrained-delegation-overview
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Apr 13 13:54:27 UTC 2022 on sn-devel-184
Tested also against Windows Server 2022.
Details:
https://lists.samba.org/archive/cifs-protocol/2022-April/003673.html
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This gives samba_kdc_update_pac() a chance to detect S4U2Self.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
find $(pwd) -type f -name "*.c" | xargs sed -i -e '$a\'
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
