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| author | Hans Nilsson <[email protected]> | 2016-09-06 14:31:09 +0200 |
|---|---|---|
| committer | Hans Nilsson <[email protected]> | 2016-09-06 14:31:09 +0200 |
| commit | 6a79c1e1d020570d41f825a1ee5d8dd8d9546bc8 (patch) | |
| tree | 2b47e63c4f5c2675bf90d3b6fa468fc82b21974a /lib/ssh/src | |
| parent | 01266fc26d2429d6d0b4b0b43faf234582d1f6db (diff) | |
| parent | df8da1d56961e999a43531b64a6f312b60da93d9 (diff) | |
| download | otp-6a79c1e1d020570d41f825a1ee5d8dd8d9546bc8.tar.gz otp-6a79c1e1d020570d41f825a1ee5d8dd8d9546bc8.tar.bz2 otp-6a79c1e1d020570d41f825a1ee5d8dd8d9546bc8.zip | |
Merge branch 'hans/ssh/keyboard_interactive_defensics' into maint
Diffstat (limited to 'lib/ssh/src')
| -rw-r--r-- | lib/ssh/src/ssh_auth.erl | 17 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_connection_handler.erl | 14 |
2 files changed, 30 insertions, 1 deletions
diff --git a/lib/ssh/src/ssh_auth.erl b/lib/ssh/src/ssh_auth.erl index 27f27b46d5..ac35b70209 100644 --- a/lib/ssh/src/ssh_auth.erl +++ b/lib/ssh/src/ssh_auth.erl @@ -406,10 +406,22 @@ handle_userauth_info_response(#ssh_msg_userauth_info_response{num_responses = 1, kb_tries_left = KbTriesLeft, user = User, userauth_supported_methods = Methods} = Ssh) -> + SendOneEmpty = proplists:get_value(tstflg, Opts) == one_empty, case check_password(User, unicode:characters_to_list(Password), Opts, Ssh) of + {true,Ssh1} when SendOneEmpty==true -> + Msg = #ssh_msg_userauth_info_request{name = "", + instruction = "", + language_tag = "", + num_prompts = 0, + data = <<?BOOLEAN(?FALSE)>> + }, + {authorized_but_one_more, User, + ssh_transport:ssh_packet(Msg, Ssh1)}; + {true,Ssh1} -> {authorized, User, ssh_transport:ssh_packet(#ssh_msg_userauth_success{}, Ssh1)}; + {false,Ssh1} -> {not_authorized, {User, {error,"Bad user or password"}}, ssh_transport:ssh_packet(#ssh_msg_userauth_failure{ @@ -419,6 +431,11 @@ handle_userauth_info_response(#ssh_msg_userauth_info_response{num_responses = 1, )} end; +handle_userauth_info_response({extra,#ssh_msg_userauth_info_response{}}, + #ssh{user = User} = Ssh) -> + {authorized, User, + ssh_transport:ssh_packet(#ssh_msg_userauth_success{}, Ssh)}; + handle_userauth_info_response(#ssh_msg_userauth_info_response{}, _Auth) -> ssh_connection_handler:disconnect( diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl index 00bf1a3885..facf6b561a 100644 --- a/lib/ssh/src/ssh_connection_handler.erl +++ b/lib/ssh/src/ssh_connection_handler.erl @@ -822,9 +822,21 @@ handle_event(_, #ssh_msg_userauth_info_response{} = Msg, {userauth_keyboard_inte {not_authorized, {User, Reason}, {Reply, Ssh}} -> retry_fun(User, Reason, D), send_bytes(Reply, D), - {next_state, {userauth,server}, D#data{ssh_params = Ssh}} + {next_state, {userauth,server}, D#data{ssh_params = Ssh}}; + + {authorized_but_one_more, _User, {Reply, Ssh}} -> + send_bytes(Reply, D), + {next_state, {userauth_keyboard_interactive_extra,server}, D#data{ssh_params = Ssh}} end; +handle_event(_, #ssh_msg_userauth_info_response{} = Msg, {userauth_keyboard_interactive_extra, server}, D) -> + {authorized, User, {Reply, Ssh}} = ssh_auth:handle_userauth_info_response({extra,Msg}, D#data.ssh_params), + send_bytes(Reply, D), + D#data.starter ! ssh_connected, + connected_fun(User, "keyboard-interactive", D), + {next_state, {connected,server}, D#data{auth_user = User, + ssh_params = Ssh#ssh{authenticated = true}}}; + handle_event(_, Msg = #ssh_msg_userauth_failure{}, {userauth_keyboard_interactive, client}, #data{ssh_params = Ssh0} = D0) -> Prefs = [{Method,M,F,A} || {Method,M,F,A} <- Ssh0#ssh.userauth_preference, |