mirror of https://github.com/MISP/mail_to_misp
86 lines
3.3 KiB
Python
Executable File
86 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python
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import ssl
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from pathlib import Path
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import importlib
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from subprocess import run, PIPE
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from aiosmtpd.controller import Controller
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from aiosmtpd.smtp import SMTP
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import subprocess
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import argparse
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def get_context():
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key_path = Path('certs', 'key.pem')
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cert_path = Path('certs', 'cert.pem')
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if not cert_path.exists() and not key_path.exists():
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subprocess.call(f'openssl req -x509 -newkey rsa:4096 -keyout {key_path.as_posix()} -out {cert_path.as_posix()} -days 365 -nodes -subj "/CN=localhost"', shell=True)
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context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
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context.load_cert_chain(cert_path.as_posix(), key_path.as_posix())
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# Pass SSL context to aiosmtpd
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class ControllerSSL(Controller):
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def factory(self):
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return SMTP(self.handler, ssl_context=get_context())
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# Pass SSL context to aiosmtpd
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class ControllerSTARTTLS(Controller):
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def factory(self):
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return SMTP(self.handler, require_starttls=False, tls_context=get_context())
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class CustomSMTPHandler:
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async def handle_DATA(self, server, session, envelope):
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print(f'Receiving message from: {session.peer}')
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print(f'Message addressed from: {envelope.mail_from}')
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print(f'Message addressed to : {envelope.rcpt_tos}')
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print(f'Message length : {len(envelope.content)}')
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if email_forward in envelope.rcpt_tos:
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p = run([binpath_forward, "-"], stdout=PIPE, input=envelope.content)
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else:
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p = run([binpath, "-"], stdout=PIPE, input=envelope.content)
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print(p)
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return '250 OK'
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Launch a fake SMTP server to push SPAMs to a MISP instance')
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parser.add_argument("--path", default='./mail_to_misp.py', help="Path to the mail_to_misp.py script.")
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parser.add_argument("--path_forward", default='./mail_to_misp.py', help="Path to the mail_to_misp.py script.")
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parser.add_argument("--email_forward", default='mail2misp@example.com', help="Path to the mail_to_misp.py script.")
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parser.add_argument("--host", default='127.0.0.1', help="IP to attach the SMTP server to.")
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parser.add_argument("--port", default='2525', help="Port of the SMTP server")
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parser.add_argument("--ssl", action='store_true', help="Pure SMTPs.")
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args = parser.parse_args()
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configmodule = Path(__file__).as_posix().replace('.py', '_config')
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if Path(f'{configmodule}.py').exists():
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config = importlib.import_module(configmodule)
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binpath = config.binpath
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binpath_forward = config.binpath_forward
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email_forward = config.email_forward
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smtp_addr = config.smtp_addr
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smtp_port = config.smtp_port
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smtps = config.ssl
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else:
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binpath = args.path
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binpath_forward = args.path_forward
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email_forward = args.email_forward
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smtp_addr = args.host
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smtp_port = args.port
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smtps = args.ssl
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print("Starting Fake-SMTP-to-MISP server")
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handler = CustomSMTPHandler()
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if smtps:
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server = ControllerSSL(handler, hostname=smtp_addr, port=smtp_port)
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else:
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server = ControllerSTARTTLS(handler, hostname=smtp_addr, port=smtp_port)
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server.start()
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input("Server started. Press Return to quit.")
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server.stop()
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