"errorMessage": "Invalid output\n" on Mail Responder

[sheilapbi]

Request Type

Bug

Work Environment

N/A

Description

I created a very simple Mail Responder for Cortex/TheHive that works when I execute it from my bash console but doesn't work when executed in TheHive. I get "errorMessage": "Invalid output\n"

The owner is set to cortex:cortex and permissions are set correctly, just the same as another responder that works.

Steps to Reproduce

Execution of the responder on bash, same server as the code for TheHive:

python thehive/responders/SendMail/sendmail.py <<< '{
    "dataType": "",
    "description": "Link to analysis",
    "tlp": 3,
    "tags": [
        "Phishing",
        "Montepio"
    ],
    "title": "Processed URL http://mon",
    "source": "w",
    "createdBy": "admin",
    "sourceRef": "82ca55",
    "artifacts": [
        {
            "data": "http://mon",
            "dataType": "url",
            "message": null,
            "tags": [
                "phishing"
            ],
            "tlp": 2
        }
    ],
    "lastSyncDate": 1552658595914,
    "customFields": {
        "client": {
            "order": 0,
            "string": "der"
        }
    },
    "type": "external",
    "follow": true,
    "caseTemplate": null,
    "date": 1552658595000,
    "createdAt": 1552658595913,
    "status": "New",
    "severity": 2,
    "_type": "alert",
    "_routing": "ff086cadf96ca22b67d18edc4f5fa3bd",
    "_parent": null,
    "_id": "ff086cadf96ca22b67d18edc4f5fa3bd",
    "_version": 1,
    "id": "ff086cadf96ca22b67d18edc4f5fa3bd"
}'

Mailer code:

#!/usr/bin/env python
# encoding: utf-8

import smtplib
from cortexutils.responder import Responder


class SendMail(Responder):

    def __init__(self):
        Responder.__init__(self)
        # self.smtp_host = self.get_param('config.smtp_host', 'localhost')
        # self.smtp_port = self.get_param('config.smtp_port', '25')
        # self.mail_from = self.get_param('config.from', None, 'Missing sender email address')
        self.mail_from = "[email protected]"
        self.password = "coolpassword"
        self.mail_to = "[email protected]"
        self.message = "HELLO"

    def run(self):
        print "TEST PRUEBA MAIL"
        Responder.run(self)
        server = smtplib.SMTP("smtp.whatever.com", 587)
        server.starttls()
        server.login(self.mail_from, self.password)
        server.sendmail(self.mail_from, self.mail_to , self.message)
        server.quit()
        self.report({'message': 'message sent'})

    def operations(self, raw):
        return [self.build_operation('AddTagToCase', tag='mail sent')]

if __name__ == '__main__':
    SendMail().run()

Config file:

{
  "name": "Send_Mail",
  "version": "1.0",
  "author": "author",
  "url": "https://github.com/TheHive-Project/Cortex-Analyzers",
  "license": "AGPL-V3",
  "description": "Send mail",
  "dataTypeList": ["thehive:alert"],
  "command": "SendMail/sendmail.py",
  "baseConfig": "sendmail",
  "configurationItems": [
  ]
}

Thanks in advanced!

[nadouani]

is your .py file executable?

[sheilapbi]

Yes, it is. :)

[nadouani]

Remove the print statments, this make the output an invalid json.

[sheilapbi]

Thank you so much!! It was exactly what was messing with the output.