sslstrip outputs errors with python 2.7

[BullShark]

I'm using Fedora 16. Running sslstrip produces a lot of python errors.

I have these packages installed:

package: sslstrip.noarch 0.9-2.fc16
dependency: /usr/bin/python
provider: python.x86_64 2.7.3-4.fc16
provider: python.i686 2.7.3-4.fc16
dependency: python(abi) = 2.7
provider: python.x86_64 2.7.3-4.fc16
provider: python.i686 2.7.3-4.fc16
dependency: python-twisted-web
provider: python-twisted-web.x86_64 11.0.0-1.fc16

How I produced the bug:

[root@beastlinux ~]# iptables-restore < /etc/sysconfig/iptables # Configured the listening port to be open
[root@beastlinux ~]# iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port 1337
[root@beastlinux ~]# sslstrip -l 1337

sslstrip 0.9 by Moxie Marlinspike running...
Unhandled Error
Traceback (most recent call last):
File "/usr/bin/sslstrip", line 105, in main
reactor.run()
File "/usr/lib64/python2.7/site-packages/twisted/internet/base.py", line 1162, in run
self.mainLoop()
File "/usr/lib64/python2.7/site-packages/twisted/internet/base.py", line 1174, in mainLoop
self.doIteration(t)
File "/usr/lib64/python2.7/site-packages/twisted/internet/selectreactor.py", line 140, in doSelect
_logrun(selectable, _drdw, selectable, method, dict)
--- ---
File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 84, in callWithLogger
return callWithContext({"system": lp}, func, _args, *_kw)
File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 69, in callWithContext
return context.call({ILogContext: newCtx}, func, _args, *_kw)
File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
return self.currentContext().callWithContext(ctx, func, _args, *_kw)
File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
return func(_args,__kw)
File "/usr/lib64/python2.7/site-packages/twisted/internet/selectreactor.py", line 156, in _doReadOrWrite
self._disconnectSelectable(selectable, why, method=="doRead")
File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 253, in _disconnectSelectable
selectable.connectionLost(f)
File "/usr/lib64/python2.7/site-packages/twisted/internet/tcp.py", line 687, in connectionLost
Connection.connectionLost(self, reason)
File "/usr/lib64/python2.7/site-packages/twisted/internet/tcp.py", line 529, in connectionLost
protocol.connectionLost(reason)
File "/usr/lib64/python2.7/site-packages/twisted/web/http.py", line 455, in connectionLost
self.handleResponseEnd()
File "/usr/lib/python2.7/site-packages/sslstrip/ServerConnection.py", line 119, in handleResponseEnd
HTTPClient.handleResponseEnd(self)
File "/usr/lib64/python2.7/site-packages/twisted/web/http.py", line 466, in handleResponseEnd
self.handleResponse(b)
File "/usr/lib/python2.7/site-packages/sslstrip/ServerConnection.py", line 133, in handleResponse
self.client.write(data)
File "/usr/lib64/python2.7/site-packages/twisted/web/http.py", line 898, in write
raise RuntimeError('Request.write called on a request after '
exceptions.RuntimeError: Request.write called on a request after Request.finish was called.
Unhandled Error
Traceback (most recent call last):
File "/usr/bin/sslstrip", line 105, in main
reactor.run()
File "/usr/lib64/python2.7/site-packages/twisted/internet/base.py", line 1162, in run
self.mainLoop()
File "/usr/lib64/python2.7/site-packages/twisted/internet/base.py", line 1174, in mainLoop
self.doIteration(t)
File "/usr/lib64/python2.7/site-packages/twisted/internet/selectreactor.py", line 140, in doSelect
_logrun(selectable, _drdw, selectable, method, dict)
--- ---
File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 84, in callWithLogger
return callWithContext({"system": lp}, func, *args, *_kw)
File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 69, in callWithContext
return context.call({ILogContext: newCtx}, func, _args, *_kw)
File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
return self.currentContext().callWithContext(ctx, func, _args, *_kw)
File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
return func(args,*kw)
File "/usr/lib64/python2.7/site-packages/twisted/internet/selectreactor.py", line 156, in _doReadOrWrite
self._disconnectSelectable(selectable, why, method=="doRead")
File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 253, in _disconnectSelectable
selectable.connectionLost(f)
File "/usr/lib64/python2.7/site-packages/twisted/internet/tcp.py", line 687, in connectionLost
Connection.connectionLost(self, reason)
File "/usr/lib64/python2.7/site-packages/twisted/internet/tcp.py", line 529, in connectionLost
protocol.connectionLost(reason)
File "/usr/lib64/python2.7/site-packages/twisted/web/http.py", line 455, in connectionLost
self.handleResponseEnd()
File "/usr/lib/python2.7/site-packages/sslstrip/ServerConnection.py", line 119, in handleResponseEnd
HTTPClient.handleResponseEnd(self)
File "/usr/lib64/python2.7/site-packages/twisted/web/http.py", line 466, in handleResponseEnd
self.handleResponse(b)
File "/usr/lib/python2.7/site-packages/sslstrip/ServerConnection.py", line 133, in handleResponse
self.client.write(data)
File "/usr/lib64/python2.7/site-packages/twisted/web/http.py", line 898, in write
raise RuntimeError('Request.write called on a request after '
exceptions.RuntimeError: Request.write called on a request after Request.finish was called.

[bovinespongiformflu]

I'm having the same issue, on ubuntu. it updated to python2.7.3 and this started happening.

[sol-vin]

Hmm this might be the cause of my problem, should we downgrade to python2 in the meantime?
EDIT: Nevermind, my problem is still happening on python2.... SSLStrip doesnt seem to want to strip the ssl and it just gives me errors. :/

[moxie0]

These are informational stack traces that are printed by Twisted (the async i/o framework we use). They don't indicate a problem, and can be safely ignored.