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authorIngela Anderton Andin <[email protected]>2018-04-26 16:58:28 +0200
committerIngela Anderton Andin <[email protected]>2018-04-27 10:45:51 +0200
commitc44477a5f174343673b429a17b518fb0697a0d22 (patch)
treef710b389553b6dd0337f9f538b02d7b0d512d9cb /lib/ssl
parentf2c1d537dc28ffbde5d42aedec70bf4c6574c3ea (diff)
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ssl: Proper handling of clients that choose to send an empty
answer to a certificate request Solves ERL-599
Diffstat (limited to 'lib/ssl')
-rw-r--r--lib/ssl/src/ssl_connection.erl16
-rw-r--r--lib/ssl/src/ssl_connection.hrl2
-rw-r--r--lib/ssl/src/ssl_handshake.erl6
-rw-r--r--lib/ssl/test/ssl_certificate_verify_SUITE.erl92
4 files changed, 78 insertions, 38 deletions
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index 63fae78195..64ecc29b97 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -709,6 +709,22 @@ certify(internal, #server_key_exchange{exchange_keys = Keys},
Version, ?FUNCTION_NAME, State)
end
end;
+certify(internal, #certificate_request{},
+ #state{role = client, negotiated_version = Version,
+ key_algorithm = Alg} = State, _)
+ when Alg == dh_anon; Alg == ecdh_anon;
+ Alg == psk; Alg == dhe_psk; Alg == ecdhe_psk; Alg == rsa_psk;
+ Alg == srp_dss; Alg == srp_rsa; Alg == srp_anon ->
+ handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE),
+ Version, ?FUNCTION_NAME, State);
+certify(internal, #certificate_request{},
+ #state{session = #session{own_certificate = undefined},
+ role = client} = State0, Connection) ->
+ %% The client does not have a certificate and will send an empty reply, the server may fail
+ %% or accept the connection by its own preference. No signature algorihms needed as there is
+ %% no certificate to verify.
+ {Record, State} = Connection:next_record(State0),
+ Connection:next_event(?FUNCTION_NAME, Record, State#state{client_certificate_requested = true});
certify(internal, #certificate_request{} = CertRequest,
#state{session = #session{own_certificate = Cert},
role = client,
diff --git a/lib/ssl/src/ssl_connection.hrl b/lib/ssl/src/ssl_connection.hrl
index f9d2149170..72a7e6ebcc 100644
--- a/lib/ssl/src/ssl_connection.hrl
+++ b/lib/ssl/src/ssl_connection.hrl
@@ -61,7 +61,7 @@
client_certificate_requested = false :: boolean(),
key_algorithm :: ssl_cipher:key_algo(),
hashsign_algorithm = {undefined, undefined},
- cert_hashsign_algorithm,
+ cert_hashsign_algorithm = {undefined, undefined},
public_key_info :: ssl_handshake:public_key_info() | 'undefined',
private_key :: public_key:private_key() | secret_printout() | 'undefined',
diffie_hellman_params:: #'DHParameter'{} | undefined | secret_printout(),
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index 7efb89bfae..8b1ea52ac9 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -1066,12 +1066,6 @@ select_hashsign(_, Cert, _, _, Version) ->
%%
%% Description: Handles signature algorithms selection for certificate requests (client)
%%--------------------------------------------------------------------
-select_hashsign(#certificate_request{}, undefined, _, {Major, Minor}) when Major >= 3 andalso Minor >= 3->
- %% There client does not have a certificate and will send an empty reply, the server may fail
- %% or accept the connection by its own preference. No signature algorihms needed as there is
- %% no certificate to verify.
- {undefined, undefined};
-
select_hashsign(#certificate_request{hashsign_algorithms = #hash_sign_algos{hash_sign_algos = HashSigns},
certificate_types = Types}, Cert, SupportedHashSigns,
{Major, Minor}) when Major >= 3 andalso Minor >= 3->
diff --git a/lib/ssl/test/ssl_certificate_verify_SUITE.erl b/lib/ssl/test/ssl_certificate_verify_SUITE.erl
index 0bc265fa10..1de4c89d7f 100644
--- a/lib/ssl/test/ssl_certificate_verify_SUITE.erl
+++ b/lib/ssl/test/ssl_certificate_verify_SUITE.erl
@@ -40,14 +40,22 @@
%%--------------------------------------------------------------------
all() ->
[
- {group, tls},
- {group, dtls}
+ {group, 'tlsv1.2'},
+ {group, 'tlsv1.1'},
+ {group, 'tlsv1'},
+ {group, 'sslv3'},
+ {group, 'dtlsv1.2'},
+ {group, 'dtlsv1'}
].
groups() ->
[
- {tls, [], all_protocol_groups()},
- {dtls, [], all_protocol_groups()},
+ {'tlsv1.2', [], all_protocol_groups()},
+ {'tlsv1.1', [], all_protocol_groups()},
+ {'tlsv1', [], all_protocol_groups()},
+ {'sslv3', [], all_protocol_groups()},
+ {'dtlsv1.2', [], all_protocol_groups()},
+ {'dtlsv1', [], all_protocol_groups()},
{active, [], tests()},
{active_once, [], tests()},
{passive, [], tests()},
@@ -65,6 +73,7 @@ tests() ->
verify_none,
server_require_peer_cert_ok,
server_require_peer_cert_fail,
+ server_require_peer_cert_empty_ok,
server_require_peer_cert_partial_chain,
server_require_peer_cert_allow_partial_chain,
server_require_peer_cert_do_not_allow_partial_chain,
@@ -104,24 +113,6 @@ end_per_suite(_Config) ->
ssl:stop(),
application:stop(crypto).
-init_per_group(tls, Config0) ->
- Version = tls_record:protocol_version(tls_record:highest_protocol_version([])),
- ssl:stop(),
- application:load(ssl),
- application:set_env(ssl, protocol_version, Version),
- ssl:start(),
- Config = ssl_test_lib:init_tls_version(Version, Config0),
- [{version, tls_record:protocol_version(Version)} | Config];
-
-init_per_group(dtls, Config0) ->
- Version = dtls_record:protocol_version(dtls_record:highest_protocol_version([])),
- ssl:stop(),
- application:load(ssl),
- application:set_env(ssl, protocol_version, Version),
- ssl:start(),
- Config = ssl_test_lib:init_tls_version(Version, Config0),
- [{version, dtls_record:protocol_version(Version)} | Config];
-
init_per_group(active, Config) ->
[{active, true}, {receive_function, send_recv_result_active} | Config];
init_per_group(active_once, Config) ->
@@ -130,15 +121,24 @@ init_per_group(passive, Config) ->
[{active, false}, {receive_function, send_recv_result} | Config];
init_per_group(error_handling, Config) ->
[{active, false}, {receive_function, send_recv_result} | Config];
+init_per_group(GroupName, Config) ->
+ case ssl_test_lib:is_tls_version(GroupName) of
+ true ->
+ case ssl_test_lib:sufficient_crypto_support(GroupName) of
+ true ->
+ [{version, GroupName} | ssl_test_lib:init_tls_version(GroupName, Config)];
+ false ->
+ {skip, "Missing crypto support"}
+ end
+ end.
-init_per_group(_, Config) ->
- Config.
-
-end_per_group(GroupName, Config) when GroupName == tls;
- GroupName == dtls ->
- ssl_test_lib:clean_tls_version(Config);
-end_per_group(_GroupName, Config) ->
- Config.
+end_per_group(GroupName, Config) ->
+ case ssl_test_lib:is_tls_version(GroupName) of
+ true ->
+ ssl_test_lib:clean_tls_version(Config);
+ false ->
+ Config
+ end.
init_per_testcase(_TestCase, Config) ->
ssl:stop(),
@@ -306,6 +306,35 @@ server_require_peer_cert_fail(Config) when is_list(Config) ->
end.
%%--------------------------------------------------------------------
+server_require_peer_cert_empty_ok() ->
+ [{doc,"Test server option fail_if_no_peer_cert when peer sends cert"}].
+
+server_require_peer_cert_empty_ok(Config) when is_list(Config) ->
+ ServerOpts = [{verify, verify_peer}, {fail_if_no_peer_cert, false}
+ | ssl_test_lib:ssl_options(server_rsa_opts, Config)],
+ ClientOpts0 = ssl_test_lib:ssl_options(client_rsa_opts, Config),
+ Active = proplists:get_value(active, Config),
+ ReceiveFunction = proplists:get_value(receive_function, Config),
+ {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+
+ ClientOpts = proplists:delete(keyfile, proplists:delete(certfile, ClientOpts0)),
+
+ Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+ {from, self()},
+ {mfa, {ssl_test_lib, ReceiveFunction, []}},
+ {options, [{active, Active} | ServerOpts]}]),
+ Port = ssl_test_lib:inet_port(Server),
+ Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+ {host, Hostname},
+ {from, self()},
+ {mfa, {ssl_test_lib, ReceiveFunction, []}},
+ {options, [{active, Active} | ClientOpts]}]),
+
+ ssl_test_lib:check_result(Server, ok, Client, ok),
+ ssl_test_lib:close(Server),
+ ssl_test_lib:close(Client).
+
+%%--------------------------------------------------------------------
server_require_peer_cert_partial_chain() ->
[{doc, "Client sends an incompleate chain, by default not acceptable."}].
@@ -930,6 +959,7 @@ client_with_cert_cipher_suites_handshake(Config) when is_list(Config) ->
Config, "_sign_only_extensions"),
ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),
+ TLSVersion = ssl_test_lib:protocol_version(Config, tuple),
{ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
@@ -938,7 +968,7 @@ client_with_cert_cipher_suites_handshake(Config) when is_list(Config) ->
send_recv_result_active, []}},
{options, [{active, true},
{ciphers,
- ssl_test_lib:rsa_non_signed_suites(proplists:get_value(version, Config))}
+ ssl_test_lib:rsa_non_signed_suites(TLSVersion)}
| ServerOpts]}]),
Port = ssl_test_lib:inet_port(Server),
Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},