How to connect to remote OpenVas scanner with python?

Question

I am exploring OpenVas tool for a project requirement, openVas is currently managed by Greenbone. I am getting error when I try to use remote scanner using python api.

I did all initial configuration, setup the required gui account etc and was able to scan the required systems manually however when I try to do the same using Python Api its not working. There isn't any example available on internet nor in there manual to verify my code. I have used [https://pypi.org/project/python-gvm/] api.

I wrote simple code but its not working..

from gvm.connections import SSHConnection
from gvm.protocols.latest import Gmp
from gvm.transforms import EtreeTransform
from gvm.xml import pretty_print

connection = SSHConnection(hostname='192.168.1.84',username='alex',password='alex@123')
gmp = Gmp(connection)
gmp.authenticate('admin', 'admin')

# Retrieve current GMP version
version = gmp.get_version()

# Prints the XML in beautiful form
pretty_print(version)

I am getting error-

/usr/bin/python3.7 /home/punshi/PycharmProjects/nessus_api/openvas-greenbone.py
/usr/local/lib/python3.7/dist-packages/paramiko/kex_ecdh_nist.py:39: CryptographyDeprecationWarning: encode_point has been deprecated on EllipticCurvePublicNumbers and will be removed in a future version. Please use EllipticCurvePublicKey.public_bytes to obtain both compressed and uncompressed point encoding.
  m.add_string(self.Q_C.public_numbers().encode_point())
/usr/local/lib/python3.7/dist-packages/paramiko/kex_ecdh_nist.py:96: CryptographyDeprecationWarning: Support for unsafe construction of public numbers from encoded data will be removed in a future version. Please use EllipticCurvePublicKey.from_encoded_point
  self.curve, Q_S_bytes
/usr/local/lib/python3.7/dist-packages/paramiko/kex_ecdh_nist.py:111: CryptographyDeprecationWarning: encode_point has been deprecated on EllipticCurvePublicNumbers and will be removed in a future version. Please use EllipticCurvePublicKey.public_bytes to obtain both compressed and uncompressed point encoding.
  hm.add_string(self.Q_C.public_numbers().encode_point())
Traceback (most recent call last):
  File "/home/punshi/PycharmProjects/nessus_api/openvas-greenbone.py", line 8, in <module>
    gmp.authenticate('admin', 'admin')
  File "/usr/local/lib/python3.7/dist-packages/gvm/protocols/gmpv7.py", line 211, in authenticate
    response = self._read()
  File "/usr/local/lib/python3.7/dist-packages/gvm/protocols/base.py", line 54, in _read
    return self._connection.read()
  File "/usr/local/lib/python3.7/dist-packages/gvm/connections.py", line 126, in read
    raise GvmError('Remote closed the connection')
gvm.errors.GvmError: Remote closed the connection

Process finished with exit code 1

I have tested SSH connection manually so the problem is either with my code or some other.

Additional Detail-

Ubuntu 16,
Greenbone Security Assistant 7.0.3 (gui)
Open Vas - 9.0.3

Answer 1

I've exactly the same problem that I solved it with TLSConnection instead of SSHConnection. Here is your code:

import gvm
from gvm.protocols.latest import Gmp
from gvm.transforms import EtreeTransform
from gvm.xml import pretty_print

connection =gvm.connections.TLSConnection(hostname='192.168.1.84')
gmp = Gmp(connection)
gmp.authenticate('admin', 'admin')

# Retrieve current GMP version
version = gmp.get_version()

# Prints the XML in beautiful form
pretty_print(version)