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chg: [mmdb_lookup] Add handling of ASN details.

pull/551/head
Jeroen Pinoy 2022-02-06 15:51:54 +01:00
parent d6bcb0c1b0
commit 4408f24714
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1 changed files with 23 additions and 6 deletions
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29
misp_modules/modules/expansion/mmdb_lookup.py
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@ -7,9 +7,9 @@ misperrors = {'error': 'Error'}
mispattributes = {'input': ['ip-src', 'ip-src|port', 'ip-dst', 'ip-dst|port'], 'format': 'misp_standard'}
moduleinfo = {'version': '1', 'author': 'Jeroen Pinoy',
'description': "An expansion module to enrich an ip with geolocation information from an mmdb server "
"such as ip.circl.lu",
"such as ip.circl.lu.",
'module-type': ['expansion', 'hover']}
moduleconfig = ["custom_API"]
moduleconfig = ["custom_API", "db_source_filter"]
mmdblookup_url = 'https://ip.circl.lu/'
@ -48,6 +48,21 @@ class MmdbLookupParser():
result_entry['meta']['build_db'])})
mmdblookup_object.add_reference(self.attribute['uuid'], 'related-to')
self.misp_event.add_object(mmdblookup_object)
if 'AutonomousSystemNumber' in result_entry['country']:
mmdblookup_object_asn = MISPObject('asn')
mmdblookup_object_asn.add_attribute('asn',
**{'type': 'text',
'value': result_entry['country'][
'AutonomousSystemNumber']})
mmdblookup_object_asn.add_attribute('description',
**{'type': 'text',
'value': 'ASNOrganization: {}. db_source: {}. build_db: {}.'.format(
result_entry['country'][
'AutonomousSystemOrganization'],
result_entry['meta']['db_source'],
result_entry['meta']['build_db'])})
mmdblookup_object_asn.add_reference(self.attribute['uuid'], 'related-to')
self.misp_event.add_object(mmdblookup_object_asn)
def check_url(url):
@ -63,16 +78,12 @@ def handler(q=False):
attribute = request['attribute']
if attribute.get('type') == 'ip-src':
toquery = attribute['value']
pass
elif attribute.get('type') == 'ip-src|port':
toquery = attribute['value'].split('|')[0]
pass
elif attribute.get('type') == 'ip-dst':
toquery = attribute['value']
pass
elif attribute.get('type') == 'ip-dst|port':
toquery = attribute['value'].split('|')[0]
pass
else:
misperrors['error'] = 'There is no attribute of type ip-src or ip-dst provided as input'
return misperrors
@ -84,6 +95,12 @@ def handler(q=False):
if not mmdblookupresult or len(mmdblookupresult) == 0:
misperrors['error'] = 'Empty result returned by server'
return misperrors
if 'config' in request and request['config'].get('db_source_filter'):
db_source_filter = request['config'].get('db_source_filter')
mmdblookupresult = [entry for entry in mmdblookupresult if entry['meta']['db_source'] == db_source_filter]
if not mmdblookupresult or len(mmdblookupresult) == 0:
misperrors['error'] = 'There was no result with the selected db_source'
return misperrors
# Server might return one or multiple entries which could all be empty, we check if there is at least one
# non-empty result below
empty_result = True