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It doesn't make any sense to allow other auth levels.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11749
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We now detect a MsvAvTimestamp in target info as indication
of the server to support NTLMSSP_MIC in the AUTH_MESSAGE.
If the client uses NTLMv2 we provide
NTLMSSP_AVFLAG_MIC_IN_AUTHENTICATE_MESSAGE and valid MIC.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We now include a MsvAvTimestamp in our target info as indication
for the client to include a NTLMSSP_MIC in the AUTH_MESSAGE.
If the client uses NTLMv2 we check NTLMSSP_AVFLAG_MIC_IN_AUTHENTICATE_MESSAGE
and require a valid MIC.
This is still disabled if the "map to guest" feature is used.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
If we clear CLI_CRED_LANMAN_AUTH and we should also clear the lm_response buffer
and don't send it over the net.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
[MS-SPNG] requires the NTLMSSP RC4 states to be reset after
the SPNEGO exchange with mechListMic verification (new_spnego).
The 'reset_full' parameter is needed to support the broken
behavior that windows only resets the RC4 states but not the
sequence numbers. Which means this functionality is completely
useless... But we want to work against all windows versions...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
It's important to check if got the GENSEC_FEATURE_SIGN and if the caller
wanted it.
The caller may only asked for GENSEC_FEATURE_SESSION_KEY which implicitly
negotiates NTLMSSP_NEGOTIATE_SIGN, which might indicate GENSEC_FEATURE_SIGN
to the SPNEGO glue code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
[MS-SPNG] requires the NTLMSSP RC4 states to be reset after
the SPNEGO exchange with mechListMic verification (new_spnego).
This provides the infrastructure for this feature.
The 'reset_full' parameter is needed to support the broken
behavior that windows only resets the RC4 states but not the
sequence numbers. Which means this functionality is completely
useless... But we want to work against all windows versions...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This used to work more or less before, but only for krb5 with the
server finishing first.
With NTLMSSP and new_spnego the client will finish first.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
New servers response with SPNEGO_REQUEST_MIC instead of
SPNEGO_ACCEPT_INCOMPLETE to a downgrade.
With just KRB5 and NTLMSSP this doesn't happen, but we
want to be prepared for the future.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Even for SMB where the server provides its mech list,
the client needs to remember its own mech list for the
mechListMIC calculation.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
ntlmssp_handle_neg_flags() can only disable flags, but not
set them. All supported flags are set at start time.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
man smb.conf says "client ntlmv2 auth = yes" the default disables,
"client lanman auth = yes":
...
Likewise, if the client ntlmv2 auth parameter is enabled, then only NTLMv2
logins will be attempted.
...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We now give an error when required flags are missing.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
In future we can do a more fine granted negotiation
and assert specific security features.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
ops->auth_type == 0, means the backend doesn't support DCERPC.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This is now handled by GENSEC_FEATURE_LDAP_STYLE.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We want also work against old Samba servers which didn't had
GENSEC_FEATURE_LDAP_STYLE we negotiate SEAL too. We may remove this in a few
years. As all servers should support GENSEC_FEATURE_LDAP_STYLE by then.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We need to handle NTLMSSP_NEGOTIATE_SIGN as
NTLMSSP_NEGOTIATE_SEAL if GENSEC_FEATURE_LDAP_STYLE
is requested.
This works arround a bug in Windows, which allow signed only
messages using NTLMSSP and LDAP.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This will be used for LDAP connections and may trigger
backend specific behaviour.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We already set NTLMSSP_NEGOTIATE_VERSION in
gensec_ntlmssp_server_start(), so it's always
set in chal_flags.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This matches a modern Windows client.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We don't set NTLMSSP_NEGOTIATE_OEM_{DOMAIN,WORKSTATION}_SUPPLIED anyway.
This matches modern Windows clients.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This matches a modern Windows client.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
NTLMSSP_NEGOTIATE_VERSION only indicates the existence of the version
information in the packet.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This can used in order to use the WINBINDD_CCACHE_NTLMAUTH
code of winbindd to do NTLMSSP authentication with a cached
password.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
These can be used to implement the winbindd side of
the WINBINDD_CCACHE_NTLMAUTH call.
It can properly get the initial NEGOTIATE messages
injected if available.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This is a hack in order to temporary export the server domain
from NTLMSSP through the gensec stack.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We do that for all other gensec_security_by_*() functions already.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is a hack in order to temporary implement something like:
gensec_ntlmssp_server_domain(), which may be used within spnego.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This changes pycredentials to use talloc.BaseObject() just like the PIDL output
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
We can call pytalloc_reference() and avoid having this in the header file
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This type should not be used directly, it should have been made private
to pytalloc
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
