id,summary,reporter,owner,description,type,status,priority,component,resolution,keywords,cc,component_version,os,os_version 12218,"No supported authentication methods available in 3.48, work fine with 3.47",tzorattoa,,"Hi, connecting to the same remote SFTP server (proftpd) it works fine with filezilla 3.47, and doesn't work with 3.48, with the exact same configuration. Client logs : Status: Waiting to retry... Trace: CControlSocket::SendNextCommand() Trace: CSftpConnectOpData::Send() in state 0 Status: Connecting to some-sftp.server.com... Trace: Going to execute C:\Program Files (x86)\FileZilla FTP Client\fzsftp.exe Response: fzSftp started, protocol_version=9 Trace: CSftpConnectOpData::ParseResponse() in state 0 Trace: CControlSocket::SendNextCommand() Trace: CSftpConnectOpData::Send() in state 3 Command: open ""someuser@some-sftp.server.com"" 22 Trace: Looking up host ""some-sftp.server.com"" for SSH connection Trace: Connecting to XX.XX.XX.XX port 22 Trace: We claim version: SSH-2.0-FileZilla_3.48.0 Trace: Remote version: SSH-2.0-SFTP SERVER Trace: Using SSH protocol version 2 Trace: Doing Diffie-Hellman group exchange Trace: Doing Diffie-Hellman key exchange using 4096-bit modulus and hash SHA-256 (unaccelerated) with a server-supplied group Trace: Host key fingerprint is: Trace: ssh-rsa 4096 dd:9b:bf:e7:a8:d1:41:8d:db:69:26:06:a1:dc:76:3a c7eFbbeLQB8Vd5gOrtj6GZzdoQ6aWGOtCxu5HoFd66E= Trace: CSftpControlSocket::SetAsyncRequestReply Command: Trust new Hostkey: Once Trace: Initialised AES-256 SDCTR (AES-NI accelerated) outbound encryption Trace: Initialised HMAC-SHA-256 (unaccelerated) outbound MAC algorithm Trace: Initialised AES-256 SDCTR (AES-NI accelerated) inbound encryption Trace: Initialised HMAC-SHA-256 (unaccelerated) inbound MAC algorithm Status: Using username ""someuser"". Command: Pass: ******************** Trace: Sent password Trace: Remote side sent disconnect message type 14 (no more auth methods available): ""No other authentication mechanisms available"" Error: FATAL ERROR: Remote side sent disconnect message Error: type 14 (no more auth methods available): Error: ""No other authentication mechanisms available"" Trace: CSftpControlSocket::OnTerminate without error Trace: CControlSocket::DoClose(66) Trace: CControlSocket::ResetOperation(66) Trace: CSftpConnectOpData::Reset(66) in state 3 Error: Could not connect to server Trace: CFileZillaEnginePrivate::ResetOperation(66) Status: Waiting to retry... Server logs: 2020-07-16 11:38:00,341 mod_sftp/1.0.0[9832]: error using DisplayLogin 'welcome.msg': No such file or directory 2020-07-16 11:38:00,342 mod_sftp/1.0.0[9832]: sent server version 'SSH-2.0-SFTP SERVER' 2020-07-16 11:38:00,342 mod_sftp/1.0.0[9832]: received client version 'SSH-2.0-FileZilla_3.48.0' 2020-07-16 11:38:00,342 mod_sftp/1.0.0[9832]: handling connection from SSH2 client 'FileZilla_3.48.0' 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session key exchange: diffie-hellman-group-exchange-sha256 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session server hostkey: ssh-rsa 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session client-to-server encryption: aes256-ctr 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session server-to-client encryption: aes256-ctr 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session client-to-server MAC: hmac-sha2-256 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session server-to-client MAC: hmac-sha2-256 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session client-to-server compression: none 2020-07-16 11:38:00,363 mod_sftp/1.0.0[9832]: + Session server-to-client compression: none 2020-07-16 11:38:00,915 mod_sftp/1.0.0[9832]: sending acceptable userauth methods: password 2020-07-16 11:38:00,934 mod_sftp/1.0.0[9832]: client sent SSH_MSG_IGNORE message (13 bytes) 2020-07-16 11:38:00,934 mod_sftp/1.0.0[9832]: cipher algorithm 'USERAUTH_REQUEST someuser' or MAC algorithm 'none' unacceptable for password authentication, denying password authentication request 2020-07-16 11:38:00,934 mod_sftp/1.0.0[9832]: no more auth methods available, disconnecting 2020-07-16 11:38:00,934 mod_sftp/1.0.0[9832]: disconnecting YY.YY.YY.YY (No other authentication mechanisms available) It works both with 3.47 and 3.48 connecting to a remote OpenSSH server instead of proftpd. I suppose there are some differences in the supported algorithms but the error messages are not crystal clear and I didn't found any related changes in the changelog for 3.48 on https://filezilla-project.org/versions.php. As a workaround we now use another SFTP client.",Bug report,closed,normal,FileZilla Client,rejected,,tzorattoa Cedef,,Windows,10