Mika Ayenson
a52751494e
* Convert config header to setup in note field * Parse note field into separate setup and note field with marko gfm * only validate and parse note on elastic authored rules and add CLI description for new DR_BYPASS_NOTE_VALIDATION_AND_PARSE environment variable Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>
54 lines
1.9 KiB
TOML
54 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2020/08/11"
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maturity = "production"
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updated_date = "2021/05/10"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies Elasticsearch nodes that do not have Transport Layer Security (TLS), and/or lack authentication, and are
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accepting inbound network connections over the default Elasticsearch port.
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"""
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false_positives = [
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"""
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If you have front-facing proxies that provide authentication and TLS, this rule would need to be tuned to eliminate
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the source IP address of your reverse-proxy.
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""",
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]
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from = "now-9m"
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index = ["auditbeat-*", "filebeat-*", "packetbeat-*", "logs-endpoint.events.*"]
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language = "lucene"
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license = "Elastic License v2"
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name = "Inbound Connection to an Unsecure Elasticsearch Node"
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note = """## Setup
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This rule requires the addition of port `9200` and `send_all_headers` to the `HTTP` protocol configuration in `packetbeat.yml`. See the References section for additional configuration documentation."""
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references = [
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"https://www.elastic.co/guide/en/elasticsearch/reference/current/configuring-security.html",
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"https://www.elastic.co/guide/en/beats/packetbeat/current/packetbeat-http-options.html#_send_all_headers",
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]
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risk_score = 47
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rule_id = "31295df3-277b-4c56-a1fb-84e31b4222a9"
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severity = "medium"
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tags = ["Elastic", "Network", "Threat Detection", "Initial Access", "Host"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.category:network_traffic AND network.protocol:http AND status:OK AND destination.port:9200 AND network.direction:inbound AND NOT http.response.headers.content-type:"image/x-icon" AND NOT _exists_:http.request.headers.authorization
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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reference = "https://attack.mitre.org/techniques/T1190/"
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name = "Exploit Public-Facing Application"
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id = "T1190"
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[rule.threat.tactic]
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reference = "https://attack.mitre.org/tactics/TA0001/"
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name = "Initial Access"
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id = "TA0001"
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