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| author | Ingela Anderton Andin <[email protected]> | 2017-12-01 11:39:05 +0100 |
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| committer | Ingela Anderton Andin <[email protected]> | 2017-12-01 11:39:05 +0100 |
| commit | 4edc87dfdb1feaaa9c2f9e849f8cd42456dfb620 (patch) | |
| tree | e8160208ccf2091d7c2f98ef21029dd7426831c1 /lib | |
| parent | 2973263a033b0e20123f8a316935e052695da1de (diff) | |
| parent | b272a4d292356eef69253517ea8f9fec55259613 (diff) | |
| download | otp-4edc87dfdb1feaaa9c2f9e849f8cd42456dfb620.tar.gz otp-4edc87dfdb1feaaa9c2f9e849f8cd42456dfb620.tar.bz2 otp-4edc87dfdb1feaaa9c2f9e849f8cd42456dfb620.zip | |
Merge branch 'maint'
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ssl/src/ssl_connection.erl | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index b1efcbb857..5d6428a4e0 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -1548,24 +1548,24 @@ server_certify_and_key_exchange(State0, Connection) -> certify_client_key_exchange(#encrypted_premaster_secret{premaster_secret= EncPMS}, #state{private_key = Key, client_hello_version = {Major, Minor} = Version} = State, Connection) -> - + FakeSecret = make_premaster_secret(Version, rsa), %% Countermeasure for Bleichenbacher attack always provide some kind of premaster secret %% and fail handshake later.RFC 5246 section 7.4.7.1. PremasterSecret = try ssl_handshake:premaster_secret(EncPMS, Key) of Secret when erlang:byte_size(Secret) == ?NUM_OF_PREMASTERSECRET_BYTES -> case Secret of - <<?BYTE(Major), ?BYTE(Minor), _/binary>> -> %% Correct - Secret; + <<?BYTE(Major), ?BYTE(Minor), Rest/binary>> -> %% Correct + <<?BYTE(Major), ?BYTE(Minor), Rest/binary>>; <<?BYTE(_), ?BYTE(_), Rest/binary>> -> %% Version mismatch <<?BYTE(Major), ?BYTE(Minor), Rest/binary>> end; _ -> %% erlang:byte_size(Secret) =/= ?NUM_OF_PREMASTERSECRET_BYTES - make_premaster_secret(Version, rsa) + FakeSecret catch #alert{description = ?DECRYPT_ERROR} -> - make_premaster_secret(Version, rsa) - end, + FakeSecret + end, calculate_master_secret(PremasterSecret, State, Connection, certify, cipher); certify_client_key_exchange(#client_diffie_hellman_public{dh_public = ClientPublicDhKey}, #state{diffie_hellman_params = #'DHParameter'{} = Params, |