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Posted to dev@mina.apache.org by "Thomas Wolf (Jira)" <ji...@apache.org> on 2023/06/20 07:12:00 UTC
[jira] [Commented] (SSHD-1329) SSH Public key authentication works with 2.9.2 but fails with 2.10.0
[ https://issues.apache.org/jira/browse/SSHD-1329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17735164#comment-17735164 ]
Thomas Wolf commented on SSHD-1329:
-----------------------------------
Cannot reproduce so far. I'll keep looking, though. What OS is the client on?
> SSH Public key authentication works with 2.9.2 but fails with 2.10.0
> --------------------------------------------------------------------
>
> Key: SSHD-1329
> URL: https://issues.apache.org/jira/browse/SSHD-1329
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.10.0
> Reporter: Tobias Gierke
> Priority: Major
> Attachments: sshd-bug-test.tgz
>
>
> After upgrading to Apache SSHD 2.10.0 we noticed that SSH public key authentication stopped working.
> On 2.9.2 the handshake looks like this:
> {code:java}
> 2023-06-19T13:12:18,405 [sshd-SshClient[1255b1d1]-nio2-thread-4|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - processUserAuth(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]
> ) Received SSH_MSG_USERAUTH_FAILURE - partial=false, methods=publickey,gssapi-keyex,gssapi-with-mic,password
> 2023-06-19T13:12:18,405 [sshd-SshClient[1255b1d1]-nio2-thread-4|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - tryNext(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) starti
> ng authentication mechanisms: client=[publickey, keyboard-interactive, password], server=[publickey, gssapi-keyex, gssapi-with-mic, password]
> 2023-06-19T13:12:18,405 [sshd-SshClient[1255b1d1]-nio2-thread-4|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - tryNext(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) attempting method=publickey
> 2023-06-19T13:12:18,416 [sshd-SshClient[1255b1d1]-nio2-thread-4|] TRACE org.apache.sshd.common.config.keys.loader.pem.RSAPEMResourceKeyPairParser [] - -----BEGIN RSA PRIVATE KEY----- [chunk #1](16/609) 30:82:02:5d:02:01:00:02:81:81:00:c1:a3:3a:25:23 0..].........:%#
> ..... {code}
> while on 2.10.0 the key is not found/loaded:
> {code:java}
> 2023-06-19T13:13:41,529 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.session.ClientSessionImpl [] - doHandleMessage(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) process #5 SSH_MSG_USERAUTH_FAILURE
> 2023-06-19T13:13:41,529 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - processUserAuth(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) Received SSH_MSG_USERAUTH_FAILURE - partial=false, methods=publickey,gssapi-keyex,gssapi-with-mic,password
> 2023-06-19T13:13:41,529 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - tryNext(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) starting authentication mechanisms: client=[publickey, keyboard-interactive, password], server=[publickey, gssapi-keyex, gssapi-with-mic, password]
> 2023-06-19T13:13:41,530 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - tryNext(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) attempting method=publickey
> 2023-06-19T13:13:41,532 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.auth.pubkey.UserAuthPublicKey [] - resolveAttemptedPublicKeyIdentity(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22])[ssh-connection] no more keys to send
> 2023-06-19T13:13:41,532 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - tryNext(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) no initial request sent by method=publickey
> 2023-06-19T13:13:41,532 [sshd-SshClient[495083a0]-nio2-thread-6|] TRACE org.apache.sshd.client.auth.pubkey.UserAuthPublicKey [] - releaseKeys(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) closing UserAuthPublicKeyIterator[ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]]
> 2023-06-19T13:13:41,532 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.auth.pubkey.UserAuthPublicKey [] - destroy(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22])[ssh-connection]
> 2023-06-19T13:13:41,533 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - tryNext(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) attempting method=password
> 2023-06-19T13:13:41,534 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.auth.password.UserAuthPassword [] - resolveAttemptedPassword(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22])[ssh-connection] no more passwords to send
> 2023-06-19T13:13:41,534 [sshd-SshClient[495083a0]-nio2-thread-6|] DEBUG org.apache.sshd.client.session.ClientUserAuthService [] - tryNext(ClientSessionImpl[root@vmtobilocal.fritz.box/192.168.188.250:22]) no initial request sent by method=password {code}
> I've attached a Maven project that contains an almost-self-contained unit test that showcases the behaviour. For the test to work you'll need
> - to have some SSH server up & running
> - put the test's SSH public key (from src/test/resources/test_ssh_key.pub) into an authorized_keys file on the server
> - Adjust the test source code to use the right server name and user name (I used root)
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