Yingfang Chen created SSHD-1159:
-----------------------------------
Summary: Client:Sent SSH_MSG_USERAUTH_REQUEST twice even
PASSWORD_PROMPTS=1
Key: SSHD-1159
URL: https://issues.apache.org/jira/browse/SSHD-1159
Project: MINA SSHD
Issue Type: Bug
Affects Versions: 2.2.0
Environment: SSHD version:2.2.0
Java version:openjdk version "11.0.7" 2020-04-14
Reporter: Yingfang Chen
Fix For: 2.2.0
Attachments: log_sent_to_apache_ssh.txt
Keyboard-interactive authentication sent SSH_MSG_USERAUTH_REQUEST twice even
though we set SshClient
ClientAuthenticationManager.{color:#9876aa}PASSWORD_PROMPTS
{color}{color:#172b4d}to 1{color}{color:#9876aa}
{color}
{color:#172b4d}Here is console output from ssh command line client. Incorrect
password is provided
{color}{color:#172b4d}$ssh -vv -o PreferredAuthentications=keyboard-interactive
-o NumberOfPasswordPrompts=1 user@localhost{color}
...
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
_some banner_
debug1: Authentications that can continue: publickey,keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Password:
{color:#de350b}debug1: Authentications that can continue:
publickey,keyboard-interactive{color}
{color:#de350b}debug2: we did not send a packet, disable method{color}
{color:#de350b}debug1: No more authentication methods to try.{color}
localhost: Permission denied (publickey,keyboard-interactive).
But in UserAuthenticationManager.java, another SSH_MSG_USERAUTH_REQUEST was
send before processing SSH_MSG_USERAUTH_FAILURE.
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