[RST Noise Control] unsupported operand type(s) for +: 'NoneType' and 'str'

[dominictory]

Description

RST Noise Control is producing errors and failing to enrich indicators.

ERROR Error in message processing, reporting error to API | timestamp=2025-01-07T13:42:20.671680Z name=RST Noise Control exc_info=Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/pycti/connector/opencti_connector_helper.py", line 360, in _data_handler
    message = self.callback(event_data)
              ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/opencti-connector-noisecontrol/main.py", line 236, in _process_message
    url = self.base_url + "/benign/lookup"
          ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str' taskName=null

Environment

6.4.5

Reproducible Steps

Integrate RST Noise Control connector in 6.4.5
Set ...AUTO=True
Set ...Scope=Indicator

Expected Output

Connector enriches indicator

Actual Output

Connector fails to enrich indicator

[romain-filigran]

Hi @dominictory : It seems that the variable "self.base_url" is None. Do you have correctly configured the configuration file ?
Can you share your connector configuration ?

[dominictory]

Hi @dominictory : It seems that the variable "self.base_url" is None. Do you have correctly configured the configuration file ? Can you share your connector configuration ?

Hi, I have configured all mandatory options as per https://github.com/OpenCTI-Platform/connectors/tree/master/internal-enrichment/rst-noise-control:

connector-rst-noise-control:
image: opencti/connector-rst-noise-control:${OPENCTI_VERSION}
environment:
- OPENCTI_URL=http://opencti-connector:8080
- OPENCTI_TOKEN=a8525a4c-b029-4c20-8ba5-b695cf4d1eb4
- CONNECTOR_ID=3a3be5a8-775c-4b11-b7a8-6373ac7cd844
- CONNECTOR_NAME=RST Noise Control
- CONNECTOR_SCOPE=Indicator
- CONNECTOR_AUTO=false
- CONNECTOR_LOG_LEVEL=error
- RST_NOISE_CONTROL_API_KEY=${RST_API_KEY}
- RST_NOISE_CONTROL_MAX_TLP=TLP:AMBER+STRICT
restart: always

The configuration is basically the same as my other RST connectors, the default base URL is fine so have left that out. Do I need to explicitly state it in this connector?

[romain-filigran]

Hi @dominictory. Despite the fact that the “RST_NOISE_CONTROL_BASEURL” is documented as not required, it would seem that it is necessary.
The code does not seem to initialize with a default value.
https://github.com/OpenCTI-Platform/connectors/blob/master/internal-enrichment/rst-noise-control/src/main.py#L25
Can you test by configuring this variable?

[dominictory]

Hi @dominictory. Despite the fact that the “RST_NOISE_CONTROL_BASEURL” is documented as not required, it would seem that it is necessary. The code does not seem to initialize with a default value. https://github.com/OpenCTI-Platform/connectors/blob/master/internal-enrichment/rst-noise-control/src/main.py#L25 Can you test by configuring this variable?

Indeed, adding that variable got it working. Thanks :)