Error with self-signed certificates or certificates issued by custom CA

[cwaazywabbit]

When testing an internal application with a certificate issued by a custom/intern CA the following exception is thrown:

      ____  __          __
     / __ \/ /_  ____  / /_____  ____                                                                                                                                                                                                       
    / /_/ / __ \/ __ \/ __/ __ \/ __ \                                                                                                                                                                                                      
   / ____/ / / / /_/ / /_/ /_/ / / / /                                                                                                                                                                                                      
  /_/   /_/ /_/\____/\__/\____/_/ /_/ v1.3.2

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 485, in wrap_socket
    cnx.do_handshake()
  File "/usr/local/lib/python3.7/dist-packages/OpenSSL/SSL.py", line 1806, in do_handshake
    self._raise_ssl_error(self._ssl, result)
  File "/usr/local/lib/python3.7/dist-packages/OpenSSL/SSL.py", line 1546, in _raise_ssl_error
    _raise_current_error()
  File "/usr/local/lib/python3.7/dist-packages/OpenSSL/_util.py", line 54, in exception_from_error_queue
    raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 672, in urlopen
    chunked=chunked,
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 376, in _make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 996, in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 360, in connect
    ssl_context=context,
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 370, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 491, in wrap_socket
    raise ssl.SSLError("bad handshake: %r" % e)
ssl.SSLError: ("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/requests/adapters.py", line 449, in send
    timeout=timeout
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 720, in urlopen
    method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 436, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='CENSORED', port=443): Max retries exceeded with url: /CENSORED/sitemap.xml (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])")))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/Photon/photon.py", line 309, in <module>
    zap(main_url, args.archive, domain, host, internal, robots, proxies)
  File "/opt/Photon/core/zap.py", line 46, in zap
    proxies=random.choice(proxies)).text
  File "/usr/local/lib/python3.7/dist-packages/requests/api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/requests/api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/requests/sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.7/dist-packages/requests/sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/requests/adapters.py", line 514, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='CENSORED', port=443): Max retries exceeded with url: /CENSORED/sitemap.xml (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])")))

To fix, I had to edit /opt/Photon/core/zap.py and /opt/Photon/photon.py and added verify=False to requests.get(...).

Suggestion: add a switch parameter to ignore this warning.

[sidahmed-malaoui]

I totally agree with you.