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-rw-r--r--lib/ssl/doc/src/ssl.xml40
-rw-r--r--lib/ssl/src/ssl.erl4
-rw-r--r--lib/ssl/src/ssl_internal.hrl9
-rw-r--r--lib/ssl/src/tls_record.erl13
-rw-r--r--lib/ssl/test/ssl_basic_SUITE.erl16
5 files changed, 62 insertions, 20 deletions
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml
index 83e5ed82bb..bd2cb70e3f 100644
--- a/lib/ssl/doc/src/ssl.xml
+++ b/lib/ssl/doc/src/ssl.xml
@@ -4,7 +4,7 @@
<erlref>
<header>
<copyright>
- <year>1999</year><year>2014</year>
+ <year>1999</year><year>2015</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -38,7 +38,9 @@
<item>ssl requires the crypto and public_key applications.</item>
<item>Supported SSL/TLS-versions are SSL-3.0, TLS-1.0,
TLS-1.1 and TLS-1.2.</item>
- <item>For security reasons sslv2 is not supported.</item>
+ <item>For security reasons SSL-2.0 is not supported.</item>
+ <item>For security reasons SSL-3.0 is no longer supported by default,
+ but may be configured.</item>
<item>Ephemeral Diffie-Hellman cipher suites are supported
but not Diffie Hellman Certificates cipher suites.</item>
<item>Elliptic Curve cipher suites are supported if crypto
@@ -302,7 +304,7 @@ fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom() | {revo
</item>
- <tag>{partial_chain, fun(Chain::[DerCert]) -> {trusted_ca, DerCert} | unknown_ca </tag>
+ <tag>{partial_chain, fun(Chain::[DerCert]) -> {trusted_ca, DerCert} | unknown_ca }</tag>
<item>
Claim an intermediat CA in the chain as trusted. TLS will then perform the public_key:pkix_path_validation/3
with the selected CA as trusted anchor and the rest of the chain.
@@ -311,7 +313,7 @@ fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom() | {revo
<tag>{versions, [protocol()]}</tag>
<item>TLS protocol versions that will be supported by started clients and servers.
This option overrides the application environment option <c>protocol_version</c>. If the
- environment option is not set it defaults to all versions supported by the SSL application. See also
+ environment option is not set it defaults to all versions, except SSL-3.0, supported by the SSL application. See also
<seealso marker="ssl:ssl_app">ssl(6)</seealso>
</item>
@@ -904,19 +906,37 @@ fun(srp, Username :: string(), UserState :: term()) ->
</func>
<func>
- <name>versions() ->
- [{SslAppVer, SupportedSslVer, AvailableSslVsn}]</name>
+ <name>versions() -> [versions_info()]</name>
<fsummary>Returns version information relevant for the
ssl application.</fsummary>
<type>
- <v>SslAppVer = string()</v>
- <v>SupportedSslVer = [protocol()]</v>
- <v>AvailableSslVsn = [protocol()]</v>
+ <v>versions_info() = {app_vsn, string()} | {supported | available, [protocol()] </v>
</type>
<desc>
<p>
Returns version information relevant for the
- ssl application.</p>
+ ssl application.
+ </p>
+ <taglist>
+ <tag>app_vsn</tag>
+ <item> The application version of the OTP ssl application.</item>
+
+ <tag>supported</tag>
+
+ <item>TLS/SSL versions supported by default.
+ Overridden by a versions option on
+ <seealso marker="#connect-2"> connect/[2,3,4]</seealso>, <seealso
+ marker="#listen-2"> listen/2</seealso> and <seealso
+ marker="#ssl_accept-2">ssl_accept/[1,2,3]</seealso>. For the
+ negotiated TLS/SSL version see <seealso
+ marker="#connection_info-1">ssl:connection_info/1
+ </seealso></item>
+
+ <tag>available</tag>
+ <item>All TLS/SSL versions that the Erlang ssl application
+ can support. Note that TLS 1.2 requires sufficient support
+ from the crypto application. </item>
+ </taglist>
</desc>
</func>
<func>
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index dcba69a65e..b06b1aa7c7 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -454,7 +454,7 @@ session_info(#sslsocket{pid = {Listen,_}}) when is_port(Listen) ->
versions() ->
Vsns = tls_record:supported_protocol_versions(),
SupportedVsns = [tls_record:protocol_version(Vsn) || Vsn <- Vsns],
- AvailableVsns = ?ALL_SUPPORTED_VERSIONS,
+ AvailableVsns = ?ALL_AVAILABLE_VERSIONS,
%% TODO Add DTLS versions when supported
[{ssl_app, ?VSN}, {supported, SupportedVsns}, {available, AvailableVsns}].
diff --git a/lib/ssl/src/ssl_internal.hrl b/lib/ssl/src/ssl_internal.hrl
index 75efb64e3f..4c2fdf74f1 100644
--- a/lib/ssl/src/ssl_internal.hrl
+++ b/lib/ssl/src/ssl_internal.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -67,8 +67,11 @@
-define(TRUE, 0).
-define(FALSE, 1).
--define(ALL_SUPPORTED_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1, sslv3]).
--define(MIN_SUPPORTED_VERSIONS, ['tlsv1.1', tlsv1, sslv3]).
+%% sslv3 is considered insecure due to lack of padding check (Poodle attack)
+%% Keep as interop with legacy software but do not support as default
+-define(ALL_AVAILABLE_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1, sslv3]).
+-define(ALL_SUPPORTED_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1]).
+-define(MIN_SUPPORTED_VERSIONS, ['tlsv1.1', tlsv1]).
-define(ALL_DATAGRAM_SUPPORTED_VERSIONS, ['dtlsv1.2', dtlsv1]).
-define(MIN_DATAGRAM_SUPPORTED_VERSIONS, ['dtlsv1.2', dtlsv1]).
diff --git a/lib/ssl/src/tls_record.erl b/lib/ssl/src/tls_record.erl
index 544d200f70..37929c928d 100644
--- a/lib/ssl/src/tls_record.erl
+++ b/lib/ssl/src/tls_record.erl
@@ -311,8 +311,17 @@ supported_protocol_versions([]) ->
Vsns;
supported_protocol_versions([_|_] = Vsns) ->
- Vsns.
-
+ case sufficient_tlsv1_2_crypto_support() of
+ true ->
+ Vsns;
+ false ->
+ case Vsns -- ['tlsv1.2'] of
+ [] ->
+ ?MIN_SUPPORTED_VERSIONS;
+ NewVsns ->
+ NewVsns
+ end
+ end.
%%--------------------------------------------------------------------
%%
%% Description: ssl version 2 is not acceptable security risks are too big.
diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index dc9e8934e6..0f7dbef91b 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -65,7 +65,7 @@ groups() ->
{'tlsv1.2', [], all_versions_groups()},
{'tlsv1.1', [], all_versions_groups()},
{'tlsv1', [], all_versions_groups() ++ rizzo_tests()},
- {'sslv3', [], all_versions_groups() ++ rizzo_tests()},
+ {'sslv3', [], all_versions_groups() ++ rizzo_tests() ++ [ciphersuite_vs_version]},
{api,[], api_tests()},
{session, [], session_tests()},
{renegotiate, [], renegotiate_tests()},
@@ -90,7 +90,8 @@ basic_tests() ->
version_option,
connect_twice,
connect_dist,
- clear_pem_cache
+ clear_pem_cache,
+ defaults
].
options_tests() ->
@@ -116,7 +117,6 @@ options_tests() ->
tcp_reuseaddr,
honor_server_cipher_order,
honor_client_cipher_order,
- ciphersuite_vs_version,
unordered_protocol_versions_server,
unordered_protocol_versions_client
].
@@ -2507,6 +2507,16 @@ no_reuses_session_server_restart_new_cert_file(Config) when is_list(Config) ->
ssl_test_lib:close(Client1).
%%--------------------------------------------------------------------
+defaults(Config) when is_list(Config)->
+ [_,
+ {supported, Supported},
+ {available, Available}]
+ = ssl:versions(),
+ true = lists:member(sslv3, Available),
+ false = lists:member(sslv3, Supported),
+ false = lists:member({rsa,rc4_128,sha}, ssl:cipher_suites()),
+ true = lists:member({rsa,rc4_128,sha}, ssl:cipher_suites(all)).
+%%--------------------------------------------------------------------
reuseaddr() ->
[{doc,"Test reuseaddr option"}].
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 09:24:58 +0000