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Validate Writes and Control Access Rights only grant access if the
object is of the type listed in the Right's appliesTo attribute. For
example, even though a Validated-SPN access may be granted to a user
object in the SD, it should only pass if the object is of class
computer This patch enforces the appliesTo attribute classes for
access checks from within the ldb stack.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14832
Signed-off-by: Nadezhda Ivanova <nivanova@symas.com>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Validate Writes and Control Access Rights should only grant access if the
object is of the type listed in the Right's appliesTo attribute.
Tests to verify this behavior
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14832
Signed-off-by: Nadezhda Ivanova <nivanova@symas.com>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Without these calls the tests could pass if an expected error did not
occur.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14832
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
[abartlet@samba.org Included in backport as changing ACLs while
ACL tests are not checking for unexpected success would be bad]
This is only ever be called in standalone mode with an MIT realm,
so we don't have a PAC/info3 structure.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This code is only every called in standalone mode on a MIT realm,
it means we never have a PAC and we also don't have winbindd arround.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should be strict in standalone mode, that we only support MIT realms
without a PAC in order to keep the code sane.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The 'ktest' environment was/is designed to test kerberos in an active
directory member setup. It was created at a time we wanted to test
smbd/winbindd with kerberos without having the source4 ad dc available.
This still applies to testing the build with system krb5 libraries
but without relying on a running ad dc.
As a domain member setup requires a running winbindd, we should test it
that way, in order to reflect a valid setup.
As a side effect it provides a way to demonstrate that we can accept
smb connections authenticated via kerberos, but no connection to
a domain controller! In order get this working offline, we need an
idmap backend with ID_TYPE_BOTH support, so we use 'autorid', which
should be the default choice.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14646
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This consolidates the code paths used for NTLMSSP and Kerberos!
I checked what we were already doing for NTLMSSP, which is this:
a) source3/auth/auth_winbind.c calls wbcAuthenticateUserEx()
b) as a domain member we require a valid response from winbindd,
otherwise we'll return NT_STATUS_NO_LOGON_SERVERS
c) we call make_server_info_wbcAuthUserInfo(), which internally
calls make_server_info_info3()
d) auth_check_ntlm_password() calls
smb_pam_accountcheck(unix_username, rhost), where rhost
is only an ipv4 or ipv6 address (without reverse dns lookup)
e) from auth3_check_password_send/auth3_check_password_recv()
server_returned_info will be passed to auth3_generate_session_info(),
triggered by gensec_session_info(), which means we'll call into
create_local_token() in order to transform auth_serversupplied_info
into auth_session_info.
For Kerberos gensec_session_info() will call
auth3_generate_session_info_pac() via the gensec_generate_session_info_pac()
helper function. The current logic is this:
a) gensec_generate_session_info_pac() is the function that
evaluates the 'gensec:require_pac', which defaulted to 'no'
before.
b) auth3_generate_session_info_pac() called
wbcAuthenticateUserEx() in order to pass the PAC blob
to winbindd, but only to prime its cache, e.g. netsamlogon cache
and others. Most failures were just ignored.
c) If the PAC blob is available, it extracted the PAC_LOGON_INFO
from it.
d) Then we called the horrible get_user_from_kerberos_info() function:
- It uses a first part of the tickets principal name (before the @)
as username and combines that with the 'logon_info->base.logon_domain'
if the logon_info (PAC) is present.
- As a fallback without a PAC it's tries to ask winbindd for a mapping
from realm to netbios domain name.
- Finally is falls back to using the realm as netbios domain name
With this information is builds 'userdomain+winbind_separator+useraccount'
and calls map_username() followed by smb_getpwnam() with create=true,
Note this is similar to the make_server_info_info3() => check_account()
=> smb_getpwnam() logic under 3.
- It also calls smb_pam_accountcheck(), but may pass the reverse DNS lookup name
instead of the ip address as rhost.
- It does some MAP_TO_GUEST_ON_BAD_UID logic and auto creates the
guest account.
e) We called create_info3_from_pac_logon_info()
f) make_session_info_krb5() calls gets called and triggers this:
- If get_user_from_kerberos_info() mapped to guest, it calls
make_server_info_guest()
- If create_info3_from_pac_logon_info() created a info3 from logon_info,
it calls make_server_info_info3()
- Without a PAC it tries pdb_getsampwnam()/make_server_info_sam() with
a fallback to make_server_info_pw()
From there it calls create_local_token()
I tried to change auth3_generate_session_info_pac() to behave similar
to auth_winbind.c together with auth3_generate_session_info() as
a domain member, as we now rely on a PAC:
a) As domain member we require a PAC and always call wbcAuthenticateUserEx()
and require a valid response!
b) we call make_server_info_wbcAuthUserInfo(), which internally
calls make_server_info_info3(). Note make_server_info_info3()
handles MAP_TO_GUEST_ON_BAD_UID and make_server_info_guest()
internally.
c) Similar to auth_check_ntlm_password() we now call
smb_pam_accountcheck(unix_username, rhost), where rhost
is only an ipv4 or ipv6 address (without reverse dns lookup)
d) From there it calls create_local_token()
As standalone server (in an MIT realm) we continue
with the already existing code logic, which works without a PAC:
a) we keep smb_getpwnam() with create=true logic as it
also requires an explicit 'add user script' option.
b) In the following commits we assert that there's
actually no PAC in this mode, which means we can
remove unused and confusing code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14646
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
AD domains always provide a PAC unless UF_NO_AUTH_DATA_REQUIRED is set
on the service account, which can only be explicitly configured,
but that's an invalid configuration!
We still try to support standalone servers in an MIT realm,
as legacy setup.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
[jsutton@samba.org Removed knownfail entries]
As we want to reduce use of 'classic domain controller' role but FreeIPA
relies on it internally, add a separate role to mark FreeIPA domain
controller role.
It means that role won't result in ROLE_STANDALONE.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We always require a running winbindd on a domain member, so
we should better fail a request instead of silently alter
the behaviour, which results in a different unix token, just
because winbindd might be restarted.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
So far we tried getpwnam("DOMAIN\account") first and
always did a fallback to getpwnam("account") completely
ignoring the domain part, this just causes problems
as we mix "DOMAIN1\account", "DOMAIN2\account",
and "account"!
As we require a running winbindd for domain member setups
we should no longer do a fallback to just "account" for
users served by winbindd!
For users of the local SAM don't use this code path,
as check_sam_security() doesn't call check_account().
The only case where smb_getpwnam("account") happens is
when map_username() via ("username map [script]") mapped
"DOMAIN\account" to something without '\', but that is
explicitly desired by the admin.
Note: use 'git show -w'
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
So far we autocreated local user accounts based on just the
account_name (just ignoring any domain part).
This only happens via a possible 'add user script',
which is not typically defined on domain members
and on NT4 DCs local users already exist in the
local passdb anyway.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This environment creates an AD member that doesn't have
'nss_winbind' configured, while winbindd is still started.
For testing we map a DOMAIN\root user to the local root
account and unix token of the local root user.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14801
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but makes it easier to audit
that we don't miss important places.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We need to make sure that temporary failures don't trigger a fallback
to the local SAM that silently ignores the domain name part for users.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We need to make sure that temporary failures don't trigger a fallback
to the local SAM that silently ignores the domain name part for users.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14556
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
