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https://github.com/Security-Onion-Solutions/securityonion.git
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Adjust elastalert salt setup to match new so-elastalert image
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@@ -1,107 +0,0 @@
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# -*- coding: utf-8 -*-
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# HiveAlerter modified from original at: https://raw.githubusercontent.com/Nclose-ZA/elastalert_hive_alerter/master/elastalert_hive_alerter/hive_alerter.py
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import uuid
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from elastalert.alerts import Alerter
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from thehive4py.api import TheHiveApi
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from thehive4py.models import Alert, AlertArtifact, CustomFieldHelper
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class TheHiveAlerter(Alerter):
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"""
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Use matched data to create alerts containing observables in an instance of TheHive
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"""
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required_options = set(['hive_connection', 'hive_alert_config'])
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def get_aggregation_summary_text(self, matches):
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text = super(TheHiveAlerter, self).get_aggregation_summary_text(matches)
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if text:
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text = '```\n{0}```\n'.format(text)
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return text
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def create_artifacts(self, match):
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artifacts = []
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context = {'rule': self.rule, 'match': match}
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for mapping in self.rule.get('hive_observable_data_mapping', []):
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for observable_type, match_data_key in mapping.items():
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try:
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artifacts.append(AlertArtifact(dataType=observable_type, data=match_data_key.format(**context)))
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except KeyError as e:
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print(('format string {} fail cause no key {} in {}'.format(e, match_data_key, context)))
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return artifacts
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def create_alert_config(self, match):
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context = {'rule': self.rule, 'match': match}
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alert_config = {
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'artifacts': self.create_artifacts(match),
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'sourceRef': str(uuid.uuid4())[0:6],
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'title': '{rule[name]}'.format(**context)
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}
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alert_config.update(self.rule.get('hive_alert_config', {}))
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for alert_config_field, alert_config_value in alert_config.items():
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if alert_config_field == 'customFields':
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custom_fields = CustomFieldHelper()
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for cf_key, cf_value in alert_config_value.items():
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try:
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func = getattr(custom_fields, 'add_{}'.format(cf_value['type']))
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except AttributeError:
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raise Exception('unsupported custom field type {}'.format(cf_value['type']))
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value = cf_value['value'].format(**context)
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func(cf_key, value)
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alert_config[alert_config_field] = custom_fields.build()
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elif isinstance(alert_config_value, str):
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alert_config[alert_config_field] = alert_config_value.format(**context)
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elif isinstance(alert_config_value, (list, tuple)):
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formatted_list = []
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for element in alert_config_value:
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try:
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formatted_list.append(element.format(**context))
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except (AttributeError, KeyError, IndexError):
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formatted_list.append(element)
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alert_config[alert_config_field] = formatted_list
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return alert_config
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def send_to_thehive(self, alert_config):
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connection_details = self.rule['hive_connection']
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api = TheHiveApi(
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connection_details.get('hive_host', ''),
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connection_details.get('hive_apikey', ''),
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proxies=connection_details.get('hive_proxies', {'http': '', 'https': ''}),
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cert=connection_details.get('hive_verify', False))
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alert = Alert(**alert_config)
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response = api.create_alert(alert)
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if response.status_code != 201:
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raise Exception('alert not successfully created in TheHive\n{}'.format(response.text))
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def alert(self, matches):
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if self.rule.get('hive_alert_config_type', 'custom') != 'classic':
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for match in matches:
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alert_config = self.create_alert_config(match)
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self.send_to_thehive(alert_config)
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else:
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alert_config = self.create_alert_config(matches[0])
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artifacts = []
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for match in matches:
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artifacts += self.create_artifacts(match)
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if 'related_events' in match:
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for related_event in match['related_events']:
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artifacts += self.create_artifacts(related_event)
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alert_config['artifacts'] = artifacts
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alert_config['title'] = self.create_title(matches)
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alert_config['description'] = self.create_alert_body(matches)
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self.send_to_thehive(alert_config)
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def get_info(self):
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return {
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'type': 'hivealerter',
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'hive_host': self.rule.get('hive_connection', {}).get('hive_host', '')
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}
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@@ -26,7 +26,8 @@ filter:
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alert: modules.so.thehive.TheHiveAlerter
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hive_connection:
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hive_host: https://{{hivehost}}/thehive/
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hive_host: http://{{hivehost}}
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hive_port: 9000
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hive_apikey: {{hivekey}}
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hive_proxies:
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@@ -55,35 +55,35 @@ elastalogdir:
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file.directory:
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- name: /opt/so/log/elastalert
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- user: 933
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- group: 939
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- group: 933
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- makedirs: True
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elastarules:
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file.directory:
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- name: /opt/so/rules/elastalert
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- user: 933
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- group: 939
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- group: 933
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- makedirs: True
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elastaconfdir:
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file.directory:
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- name: /opt/so/conf/elastalert
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- user: 933
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- group: 939
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- group: 933
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- makedirs: True
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elastasomodulesdir:
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file.directory:
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- name: /opt/so/conf/elastalert/modules/so
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- user: 933
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- group: 939
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- group: 933
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- makedirs: True
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elastacustmodulesdir:
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file.directory:
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- name: /opt/so/conf/elastalert/modules/custom
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- user: 933
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- group: 939
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- group: 933
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- makedirs: True
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elastasomodulesync:
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@@ -91,7 +91,7 @@ elastasomodulesync:
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- name: /opt/so/conf/elastalert/modules/so
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- source: salt://elastalert/files/modules/so
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- user: 933
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- group: 939
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- group: 933
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- makedirs: True
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elastarulesync:
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@@ -99,7 +99,7 @@ elastarulesync:
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- name: /opt/so/rules/elastalert
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- source: salt://elastalert/files/rules/so
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- user: 933
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- group: 939
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- group: 933
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- template: jinja
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elastaconf:
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@@ -107,7 +107,7 @@ elastaconf:
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- name: /opt/so/conf/elastalert/elastalert_config.yaml
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- source: salt://elastalert/files/elastalert_config.yaml
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- user: 933
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- group: 939
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- group: 933
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- template: jinja
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so-elastalert:
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@@ -118,16 +118,9 @@ so-elastalert:
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- user: elastalert
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- detach: True
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- binds:
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- /opt/so/rules/elastalert:/etc/elastalert/rules/:ro
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- /opt/so/rules/elastalert:/opt/rules/:ro
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- /opt/so/log/elastalert:/var/log/elastalert:rw
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- /opt/so/conf/elastalert/modules/:/opt/elastalert/modules/:ro
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- /opt/so/conf/elastalert/elastalert_config.yaml:/etc/elastalert/conf/elastalert_config.yaml:ro
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- environment:
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- ELASTICSEARCH_HOST: {{ esip }}
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- ELASTICSEARCH_PORT: {{ esport }}
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- ELASTALERT_CONFIG: /etc/elastalert/conf/elastalert_config.yaml
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- ELASTALERT_SUPERVISOR_CONF: /etc/elastalert/conf/elastalert_supervisord.conf
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- RULES_DIRECTORY: /etc/elastalert/rules/
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- LOG_DIR: /var/log/elastalert
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- /opt/so/conf/elastalert/elastalert_config.yaml:/opt/config/elastalert_config.yaml:ro
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{% endif %}
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