eric-forte-elastic
aaa4ce2ea0
* Fixed kql -> kuery in test_all_rule_queries_opt... * all queries optimized * manually reconciled all rules that failed due to toml escaped chars * merge rules from main * Rules needing optimization * Fix optimized note * fix another note * another note fix * fixing whitespace * Updated for readability --------- Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co> Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
66 lines
2.2 KiB
TOML
66 lines
2.2 KiB
TOML
[metadata]
|
|
creation_date = "2022/09/13"
|
|
integration = ["kubernetes"]
|
|
maturity = "production"
|
|
min_stack_comments = "New fields added to Kubernetes Integration"
|
|
min_stack_version = "8.4.0"
|
|
updated_date = "2023/06/22"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
This rule detects when an unauthenticated user request is authorized within the cluster. Attackers may attempt to use
|
|
anonymous accounts to gain initial access to the cluster or to avoid attribution of their activities within the cluster.
|
|
This rule excludes the /healthz, /livez and /readyz endpoints which are commonly accessed anonymously.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
Anonymous access to the API server is a dangerous setting enabled by default. Common anonymous connections (e.g.,
|
|
health checks) have been excluded from this rule. All other instances of authorized anonymous requests should be
|
|
investigated.
|
|
""",
|
|
]
|
|
index = ["logs-kubernetes.*"]
|
|
language = "kuery"
|
|
license = "Elastic License v2"
|
|
name = "Kubernetes Anonymous Request Authorized"
|
|
note = """## Setup
|
|
|
|
The Kubernetes Fleet integration with Audit Logs enabled or similarly structured data is required to be compatible with this rule."""
|
|
references = [
|
|
"https://media.defense.gov/2022/Aug/29/2003066362/-1/-1/0/CTR_KUBERNETES_HARDENING_GUIDANCE_1.2_20220829.PDF",
|
|
]
|
|
risk_score = 47
|
|
rule_id = "63c057cc-339a-11ed-a261-0242ac120002"
|
|
severity = "medium"
|
|
tags = ["Data Source: Kubernetes", "Tactic: Execution", "Tactic: Initial Access", "Tactic: Defense Evasion"]
|
|
timestamp_override = "event.ingested"
|
|
type = "query"
|
|
|
|
query = '''
|
|
event.dataset:kubernetes.audit_logs
|
|
and kubernetes.audit.annotations.authorization_k8s_io/decision:allow
|
|
and kubernetes.audit.user.username:("system:anonymous" or "system:unauthenticated" or not *)
|
|
and not kubernetes.audit.objectRef.resource:(healthz or livez or readyz)
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1078"
|
|
name = "Valid Accounts"
|
|
reference = "https://attack.mitre.org/techniques/T1078/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1078.001"
|
|
name = "Default Accounts"
|
|
reference = "https://attack.mitre.org/techniques/T1078/001/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0001"
|
|
name = "Initial Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0001/"
|
|
|