shashank-elastic
58 lines
2.0 KiB
TOML
58 lines
2.0 KiB
TOML
[metadata]
|
|
creation_date = "2020/08/11"
|
|
integration = ["network_traffic"]
|
|
maturity = "production"
|
|
updated_date = "2024/05/21"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies Elasticsearch nodes that do not have Transport Layer Security (TLS), and/or lack authentication, and are
|
|
accepting inbound network connections over the default Elasticsearch port.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
If you have front-facing proxies that provide authentication and TLS, this rule would need to be tuned to eliminate
|
|
the source IP address of your reverse-proxy.
|
|
""",
|
|
]
|
|
from = "now-9m"
|
|
index = ["packetbeat-*", "logs-network_traffic.*"]
|
|
language = "lucene"
|
|
license = "Elastic License v2"
|
|
name = "Inbound Connection to an Unsecure Elasticsearch Node"
|
|
note = """## Setup
|
|
|
|
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."""
|
|
references = [
|
|
"https://www.elastic.co/guide/en/elasticsearch/reference/current/configuring-security.html",
|
|
"https://www.elastic.co/guide/en/beats/packetbeat/current/packetbeat-http-options.html#_send_all_headers",
|
|
]
|
|
risk_score = 47
|
|
rule_id = "31295df3-277b-4c56-a1fb-84e31b4222a9"
|
|
severity = "medium"
|
|
tags = ["Use Case: Threat Detection", "Tactic: Initial Access", "Domain: Endpoint"]
|
|
timestamp_override = "event.ingested"
|
|
type = "query"
|
|
|
|
query = '''
|
|
(event.dataset: network_traffic.http OR (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
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1190"
|
|
name = "Exploit Public-Facing Application"
|
|
reference = "https://attack.mitre.org/techniques/T1190/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0001"
|
|
name = "Initial Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0001/"
|
|
|