mirror of https://github.com/MISP/misp-modules
chg: Updated the bgpranking expansion module to return MISP objects
- The module no longer returns freetext, since the result returned to the freetext import as text only allowed MISP to parse the same AS number as the input attribute. - The new result returned with the updated module is an asn object describing more precisely the AS number, and its ranking for a given daypull/429/head
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3101e5bc26
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@ -1,13 +1,15 @@
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# -*- coding: utf-8 -*-
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# -*- coding: utf-8 -*-
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import json
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import json
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from datetime import date, timedelta
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from . import check_input_attribute, standard_error_message
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from datetime import date, datetime, timedelta
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from pybgpranking import BGPRanking
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from pybgpranking import BGPRanking
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from pymisp import MISPAttribute, MISPEvent, MISPObject
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misperrors = {'error': 'Error'}
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misperrors = {'error': 'Error'}
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mispattributes = {'input': ['AS'], 'output': ['freetext']}
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mispattributes = {'input': ['AS'], 'format': 'misp_standard'}
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moduleinfo = {'version': '0.1', 'author': 'Raphaël Vinot',
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moduleinfo = {'version': '0.1', 'author': 'Raphaël Vinot',
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'description': 'Query an ASN Description history service (https://github.com/CIRCL/ASN-Description-History.git)',
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'description': 'Query BGP Ranking to get the ranking of an Autonomous System number.',
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'module-type': ['expansion', 'hover']}
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'module-type': ['expansion', 'hover']}
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@ -15,19 +17,65 @@ def handler(q=False):
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if q is False:
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if q is False:
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return False
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return False
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request = json.loads(q)
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request = json.loads(q)
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if request.get('AS'):
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if not request.get('attribute') or not check_input_attribute(request['attribute']):
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toquery = request['AS']
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return {'error': f'{standard_error_message}, which should contain at least a type, a value and an uuid.'}
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else:
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toquery = request['attribute']
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misperrors['error'] = "Unsupported attributes type"
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if toquery['type'] not in mispattributes['input']:
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return misperrors
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return {'error': 'Unsupported attribute type.'}
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bgpranking = BGPRanking()
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bgpranking = BGPRanking()
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values = bgpranking.query(toquery, date=(date.today() - timedelta(1)).isoformat())
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value_toquery = int(toquery['value'][2:]) if toquery['value'].startswith('AS') else int(toquery['value'])
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values = bgpranking.query(value_toquery, date=(date.today() - timedelta(1)).isoformat())
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if not values:
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if not values['response'] or not values['response']['asn_description']:
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misperrors['error'] = 'Unable to find the ASN in BGP Ranking'
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misperrors['error'] = 'There is no result about this ASN in BGP Ranking'
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return misperrors
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return misperrors
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return {'results': [{'types': mispattributes['output'], 'values': values}]}
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event = MISPEvent()
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attribute = MISPAttribute()
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attribute.from_dict(**toquery)
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event.add_attribute(**attribute)
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asn_object = MISPObject('asn')
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asn_object.add_attribute(**{
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'type': 'AS',
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'object_relation': 'asn',
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'value': values['meta']['asn']
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})
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description, country = values['response']['asn_description'].split(', ')
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for relation, value in zip(('description', 'country'), (description, country)):
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asn_object.add_attribute(**{
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'type': 'text',
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'object_relation': relation,
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'value': value
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})
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mapping = {
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'address_family': {'type': 'text', 'object_relation': 'address-family'},
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'date': {'type': 'datetime', 'object_relation': 'date'},
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'position': {'type': 'float', 'object_relation': 'position'},
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'rank': {'type': 'float', 'object_relation': 'ranking'}
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}
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bgp_object = MISPObject('bgp-ranking')
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for feature in ('rank', 'position'):
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bgp_attribute = {'value': values['response']['ranking'][feature]}
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bgp_attribute.update(mapping[feature])
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bgp_object.add_attribute(**bgp_attribute)
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date_attribute = {'value': datetime.strptime(values['meta']['date'], '%Y-%m-%d')}
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date_attribute.update(mapping['date'])
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bgp_object.add_attribute(**date_attribute)
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address_attribute = {'value': values['meta']['address_family']}
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address_attribute.update(mapping['address_family'])
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bgp_object.add_attribute(**address_attribute)
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asn_object.add_reference(attribute.uuid, 'describes')
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asn_object.add_reference(bgp_object.uuid, 'ranked-with')
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event.add_object(asn_object)
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event.add_object(bgp_object)
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event = json.loads(event.to_json())
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results = {key: event[key] for key in ('Attribute', 'Object')}
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return {'results': results}
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def introspection():
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def introspection():
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