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We now avoid reusing the same auth_info structure for incoming and outgoing
values. We need to make sure that the remote server doesn't overwrite our own
values.
This will trigger some failures with our currently broken server,
which will be fixed in the next commits.
The broken server requires an dcerpc_auth structure with no credentials
in order to do an alter_context request that just creates a presentation
context without doing authentication.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11344
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
It handles the case of DCERPC_AUTH_TYPE_NONE just fine and it makes it
possible to do some verification in future.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11344
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We should avoid using the global dcecli_security->auth_info struct for
individual requests.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11344
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
In future we want to verify that the auth_context_id from the server
is what we expect.
As Samba (<= 4.2.3) use a hardcoded value of 1 in responses, we
need to use that.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11344
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This will simplify the following commits and avoids dereferencing
dcecli_security->auth_info.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11344
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
All other paranoia checks are done within dcerpc_pull_auth_trailer()
now.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11344
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This prevents man in the middle downgrade attacks.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Pair-Programmed-With: Günther Deschner <gd@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
With this option turned off we only allow DCERPC_AUTH_LEVEL_{NONE,INTEGRITY,PRIVACY},
this means the reject any request with AUTH_LEVEL_CONNECT with ACCESS_DENIED.
We sadly need to keep this enabled by default for now.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Pair-Programmed-With: Günther Deschner <gd@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
This prevents man in the middle downgrade attacks.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This prevents man in the middle downgrade attacks.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
With this option turned off we only allow DCERPC_AUTH_LEVEL_{NONE,INTEGRITY,PRIVACY},
this means the reject any request with AUTH_LEVEL_CONNECT with ACCESS_DENIED.
We sadly need to keep this enabled by default for now.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
We sadly need to allow this for now by default.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
ncacn_ip_tcp:server should get the same protection as ncacn_np:server
if authentication and smb signing is used.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
ncacn_ip_tcp:server should get the same protection as ncacn_np:server
if authentication and smb signing is used.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
ncacn_ip_tcp:server should get the same protection as ncacn_np:server
if authentication and smb signing is used.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This matches windows and prevents man in the middle downgrade attacks.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This is required for the whole interface (which has just one opnum for now).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This matches windows and prevents man in the middle downgrade attacks.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11616
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Use SMB_SIGNING_IPC_DEFAULT and lp_client_ipc_{min,max}_protocol() for RPC connections.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11756
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Use SMB_SIGNING_IPC_DEFAULT for RPC connections.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11756
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Use SMB_SIGNING_IPC_DEFAULT for RPC connections.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11756
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Use SMB_SIGNING_IPC_DEFAULT for RPC connections.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11756
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Use SMB_SIGNING_IPC_DEFAULT for RPC connections.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11756
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We need NT1 => LATEST in order to work against all servers which support
DCERPC over ncacn_np.
This is a mini step in using SMB2/3 in our client side by default.
This gives us a higher chance that SMB signing is supported by the
server (as it can't be turned off for SMB2 and higher).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11756
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
SMB_SIGNING_IPC_DEFAULT must be used from s3 client code when opening
RPC connections.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11756
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
