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authorErlang/OTP <[email protected]>2016-01-08 13:09:29 +0100
committerErlang/OTP <[email protected]>2016-01-08 13:09:29 +0100
commit99f3ef4df2fe90bc67afe9dc87464be18457dfec (patch)
tree4412e809e7fe68c215460a84ecc3f3c025f29b94
parent21d6192389a04024f7a41ced9d0911a9cce6f4e8 (diff)
parent9394c572a28d08f3c564d6f388152c9c41968565 (diff)
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Merge branch 'hans/ssh/keyboard_interactive0/OTP-13255' into maint-18
* hans/ssh/keyboard_interactive0/OTP-13255: ssh: update vsn.mk to 4.2.1 ssh: handle secondary ssh_msg_userauth_info_request message ssh: testcase for abnormal keyboard-interactive authentication
-rw-r--r--lib/ssh/src/ssh_auth.erl2
-rw-r--r--lib/ssh/src/ssh_connection_handler.erl6
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE.erl81
-rw-r--r--lib/ssh/vsn.mk2
4 files changed, 86 insertions, 5 deletions
diff --git a/lib/ssh/src/ssh_auth.erl b/lib/ssh/src/ssh_auth.erl
index fdbb5c152a..b71bed033a 100644
--- a/lib/ssh/src/ssh_auth.erl
+++ b/lib/ssh/src/ssh_auth.erl
@@ -477,7 +477,7 @@ keyboard_interact_get_responses(_, undefined, Password, _, _, _, _, _,
1) when Password =/= undefined ->
[Password]; %% Password auth implemented with keyboard-interaction and passwd is known
keyboard_interact_get_responses(_, _, _, _, _, _, _, _, 0) ->
- [""];
+ [];
keyboard_interact_get_responses(false, undefined, undefined, _, _, _, [Prompt|_], Opts, _) ->
ssh_no_io:read_line(Prompt, Opts); %% Throws error as keyboard interaction is not allowed
keyboard_interact_get_responses(true, undefined, _,IoCb, Name, Instr, PromptInfos, Opts, _) ->
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl
index f082db136c..ce1931e4f4 100644
--- a/lib/ssh/src/ssh_connection_handler.erl
+++ b/lib/ssh/src/ssh_connection_handler.erl
@@ -648,10 +648,12 @@ userauth_keyboard_interactive(Msg = #ssh_msg_userauth_failure{},
userauth_keyboard_interactive_info_response(Msg=#ssh_msg_userauth_failure{},
#state{ssh_params = #ssh{role = client}} = State) ->
userauth(Msg, State);
-
userauth_keyboard_interactive_info_response(Msg=#ssh_msg_userauth_success{},
#state{ssh_params = #ssh{role = client}} = State) ->
- userauth(Msg, State).
+ userauth(Msg, State);
+userauth_keyboard_interactive_info_response(Msg=#ssh_msg_userauth_info_request{},
+ #state{ssh_params = #ssh{role = client}} = State) ->
+ userauth_keyboard_interactive(Msg, State).
%%--------------------------------------------------------------------
-spec connected({#ssh_msg_kexinit{}, binary()}, %%| %% #ssh_msg_kexdh_init{},
diff --git a/lib/ssh/test/ssh_protocol_SUITE.erl b/lib/ssh/test/ssh_protocol_SUITE.erl
index 5af60adfae..98a196d705 100644
--- a/lib/ssh/test/ssh_protocol_SUITE.erl
+++ b/lib/ssh/test/ssh_protocol_SUITE.erl
@@ -48,6 +48,7 @@ all() ->
[{group,tool_tests},
{group,kex},
{group,service_requests},
+ {group,authentication},
{group,packet_size_error},
{group,field_size_error}
].
@@ -78,7 +79,9 @@ groups() ->
bad_very_long_service_name,
empty_service_name,
bad_service_name_then_correct
- ]}
+ ]},
+ {authentication, [], [client_handles_keyboard_interactive_0_pwds
+ ]}
].
@@ -516,6 +519,82 @@ bad_service_name_length(Config, LengthExcess) ->
receive_msg}
], InitialState).
+%%%--------------------------------------------------------------------
+%%% This is due to a fault report (OTP-13255) with OpenSSH-6.6.1
+client_handles_keyboard_interactive_0_pwds(Config) ->
+ {User,_Pwd} = server_user_password(Config),
+
+ %% Create a listening socket as server socket:
+ {ok,InitialState} = ssh_trpt_test_lib:exec(listen),
+ HostPort = ssh_trpt_test_lib:server_host_port(InitialState),
+
+ %% Start a process handling one connection on the server side:
+ spawn_link(
+ fun() ->
+ {ok,_} =
+ ssh_trpt_test_lib:exec(
+ [{set_options, [print_ops, print_messages]},
+ {accept, [{system_dir, system_dir(Config)},
+ {user_dir, user_dir(Config)}]},
+ receive_hello,
+ {send, hello},
+
+ {send, ssh_msg_kexinit},
+ {match, #ssh_msg_kexinit{_='_'}, receive_msg},
+
+ {match, #ssh_msg_kexdh_init{_='_'}, receive_msg},
+ {send, ssh_msg_kexdh_reply},
+
+ {send, #ssh_msg_newkeys{}},
+ {match, #ssh_msg_newkeys{_='_'}, receive_msg},
+
+ {match, #ssh_msg_service_request{name="ssh-userauth"}, receive_msg},
+ {send, #ssh_msg_service_accept{name="ssh-userauth"}},
+
+ {match, #ssh_msg_userauth_request{service="ssh-connection",
+ method="none",
+ user=User,
+ _='_'}, receive_msg},
+ {send, #ssh_msg_userauth_failure{authentications = "keyboard-interactive",
+ partial_success = false}},
+
+ {match, #ssh_msg_userauth_request{service="ssh-connection",
+ method="keyboard-interactive",
+ user=User,
+ _='_'}, receive_msg},
+ {send, #ssh_msg_userauth_info_request{name = "",
+ instruction = "",
+ language_tag = "",
+ num_prompts = 1,
+ data = <<0,0,0,10,80,97,115,115,119,111,114,100,58,32,0>>
+ }},
+ {match, #ssh_msg_userauth_info_response{num_responses = 1,
+ _='_'}, receive_msg},
+
+ %% the next is strange, but openssh 6.6.1 does this and this is what this testcase is about
+ {send, #ssh_msg_userauth_info_request{name = "",
+ instruction = "",
+ language_tag = "",
+ num_prompts = 0,
+ data = <<>>
+ }},
+ {match, #ssh_msg_userauth_info_response{num_responses = 0,
+ data = <<>>,
+ _='_'}, receive_msg},
+ %% Here we know that the tested fault is fixed
+ {send, #ssh_msg_userauth_success{}},
+ close_socket,
+ print_state
+ ],
+ InitialState)
+ end),
+
+ %% and finally connect to it with a regular Erlang SSH client:
+ {ok,_} = std_connect(HostPort, Config,
+ [{preferred_algorithms,[{kex,['diffie-hellman-group1-sha1']}]}]
+ ).
+
+
%%%================================================================
%%%==== Internal functions ========================================
%%%================================================================
diff --git a/lib/ssh/vsn.mk b/lib/ssh/vsn.mk
index 25b19133b1..55d12abffe 100644
--- a/lib/ssh/vsn.mk
+++ b/lib/ssh/vsn.mk
@@ -1,5 +1,5 @@
#-*-makefile-*- ; force emacs to enter makefile-mode
-SSH_VSN = 4.2
+SSH_VSN = 4.2.1
APP_VSN = "ssh-$(SSH_VSN)"