connection problem when setting the simple mode of proxy

[luoluoluoxue]

In this whole process, I try to run the Cowrie with the simple mode of proxy.

The bug is about connection problem.When I run Cowrie and there is a new connection from the attacker is generated. The following bug will occur.

For Telnet connection:

2023-03-02T09:07:55.551347Z [cowrie.telnet.factory.HoneyPotTelnetFactory] New connection: 118.79.97.184:44725 (128.110.219.52:23) [session: 3a0e409e70e9]
2023-03-02T09:07:55.551846Z [cowrie.telnet_proxy.client_transport.BackendTelnetFactory#info] Starting factory <cowrie.telnet_proxy.client_transport.BackendTelnetFactory object at 0x7f093b3ede50>
2023-03-02T09:07:55.552450Z [Uninitialized] Connection to honeypot backend refused: Connection was refused by other side: 111: Connection refused.. Disconnecting frontend...
2023-03-02T09:07:55.552646Z [cowrie.telnet_proxy.client_transport.BackendTelnetFactory#info] Stopping factory <cowrie.telnet_proxy.client_transport.BackendTelnetFactory object at 0x7f093b3ede50>
2023-03-02T09:07:55.552983Z [FrontendTelnetTransport,310,118.79.97.184] Closing TTY Log: var/lib/cowrie/tty/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 after 0 seconds

For SSH connection:

2023-03-02T11:58:30.082252Z [cowrie.ssh.factory.CowrieSSHFactory] New connection: 67.205.140.79:38642 (128.110.219.52:22) [session: 9b655eedf9ef]
2023-03-02T11:58:30.083029Z [cowrie.ssh_proxy.client_transport.BackendSSHFactory#info] Starting factory <cowrie.ssh_proxy.client_transport.BackendSSHFactory object at 0x7f945fa7f670>
2023-03-02T11:58:30.083891Z [Uninitialized] Connection to honeypot backend refused: Connection was refused by other side: 111: Connection refused.. Disconnecting frontend...
2023-03-02T11:58:30.084117Z [cowrie.ssh_proxy.client_transport.BackendSSHFactory#info] Stopping factory <cowrie.ssh_proxy.client_transport.BackendSSHFactory object at 0x7f945fa7f670>
2023-03-02T11:58:30.084344Z [cowrie.ssh_proxy.server_transport.FrontendSSHTransport#info] connection lost
2023-03-02T11:58:30.084494Z [FrontendSSHTransport,25,67.205.140.79] Unhandled Error
        Traceback (most recent call last):
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/application/app.py", line 304, in runReactorWithLogging
            reactor.run()
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/internet/base.py", line 1318, in run
            self.mainLoop()
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/internet/base.py", line 1331, in mainLoop
            reactorBaseSelf.doIteration(t)
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/internet/epollreactor.py", line 244, in doPoll
            log.callWithLogger(selectable, _drdw, selectable, fd, event)
      --- <exception caught here> ---
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/python/log.py", line 96, in callWithLogger
            return callWithContext({"system": lp}, func, *args, **kw)
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/python/log.py", line 80, in callWithContext
            return context.call({ILogContext: newCtx}, func, *args, **kw)
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/python/context.py", line 117, in callWithContext
            return self.currentContext().callWithContext(ctx, func, *args, **kw)
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/python/context.py", line 82, in callWithContext
            return func(*args, **kw)
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/internet/posixbase.py", line 500, in _doReadOrWrite
            self._disconnectSelectable(selectable, why, inRead)
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/internet/posixbase.py", line 104, in _disconnectSelectable
            selectable.connectionLost(f)
          File "/home/cowrie/cowrie/cowrie-env/lib/python3.8/site-packages/twisted/internet/tcp.py", line 326, in connectionLost
            protocol.connectionLost(reason)
          File "/home/cowrie/cowrie/src/cowrie/ssh_proxy/server_transport.py", line 368, in connectionLost
            if self.sshParse.client and self.sshParse.client.transport:
        builtins.AttributeError: 'SSH' object has no attribute 'client'

Could you help me to solve it? Thanks!!!

[jiangyin97]

I have encountered the same situation. Have you solved it? @luoluoluoxue