Andrew C created SSHD-202:
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Summary: SSH Client silently accepts server key by default :-(
Key: SSHD-202
URL: https://issues.apache.org/jira/browse/SSHD-202
Project: MINA SSHD
Issue Type: Bug
Affects Versions: 0.8.0
Environment: Windows
Reporter: Andrew C
The default SshClient, returned by SshClient.setUpDefaultClient, silently
accepts the server's public key. This is because ClientSessionImpl.checkHost
allows a null ServerKeyVerifier and silently succeeds, This is, IMNSHO, really
bad. Instead, I'd suggest:
- SshClient.checkConfig require a ServerKeyVerifier
- ClientSessionImpl.checkHost crash and burn when ServerKeyVerifier is null
- SshClient.setupDefaultClient set it to AcceptAllServerKeyVerifier (maintains
compatibility)
- and AcceptAllServerKeyVerifier clearly log its action at the warning, not
trace level
Tweaking RequiredServerKeyVerifier to log its actions would also be helpful.
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