MFC-9332CDW SSL error

[mcmaxl]

Hi all,

after setting SNMP to V1/2, the script was finally able to connect to the printer (wasn't working with V3).

However, there seems to be a problem with the ssl connection:

Maxbook-181:~ maxl$ ./oh-brother.py 192.168.178.125
You may need to check the following in the printer's configuration:
  - SNMP service is enabled (for fetching model and versions)
  - FTP service is enabled (for uploading firmware)
  - an administrator password is set (for connecting to FTP)
Press Ctrl-C to exit or Enter to continue...
Getting SNMP data from printer at 192.168.178.125...
done

    serial = E74554D6J447252
     model = MFC-9332CDW
      spec = 0403
   firmwares
    category = MAIN, version = Q2305180920:AEA1
    category = SUB1, version = 1.05
    category = SUB2, version = Q1811192000


Updating MAIN version Q2305180920:AEA1
Looking up printer firmware info at vendor server...
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/urllib/request.py", line 1348, in do_open
    h.request(req.get_method(), req.selector, req.data, headers,
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/http/client.py", line 1303, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/http/client.py", line 1349, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/http/client.py", line 1298, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/http/client.py", line 1058, in _send_output
    self.send(msg)
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/http/client.py", line 996, in send
    self.connect()
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/http/client.py", line 1475, in connect
    self.sock = self._context.wrap_socket(self.sock,
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/ssl.py", line 1104, in _create
    self.do_handshake()
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/ssl.py", line 1382, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1006)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/maxl/./oh-brother.py", line 287, in <module>
    update_firmware(entry['cat'], entry['version'])
  File "/Users/maxl/./oh-brother.py", line 208, in update_firmware
    response = urllib.request.urlopen(req)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/urllib/request.py", line 216, in urlopen
    return opener.open(url, data, timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/urllib/request.py", line 519, in open
    response = self._open(req, data)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/urllib/request.py", line 536, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/urllib/request.py", line 496, in _call_chain
    result = func(*args)
             ^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/urllib/request.py", line 1391, in https_open
    return self.do_open(http.client.HTTPSConnection, req,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/urllib/request.py", line 1351, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1006)>
Maxbook-181:~ maxl$ 

every idea and help is greatly appreciated!