Justin Ibarra
52 lines
1.6 KiB
TOML
52 lines
1.6 KiB
TOML
[metadata]
|
|
creation_date = "2020/07/06"
|
|
maturity = "production"
|
|
updated_date = "2021/03/03"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies attempts to modify an AWS IAM Assume Role Policy. An adversary may attempt to modify the AssumeRolePolicy of
|
|
a misconfigured role in order to gain the privileges of that role.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Policy
|
|
updates from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can
|
|
be exempted from the rule.
|
|
""",
|
|
]
|
|
from = "now-60m"
|
|
index = ["filebeat-*", "logs-aws*"]
|
|
interval = "10m"
|
|
language = "kuery"
|
|
license = "Elastic License v2"
|
|
name = "AWS IAM Assume Role Policy Update"
|
|
note = "The AWS Filebeat module must be enabled to use this rule."
|
|
references = ["https://labs.bishopfox.com/tech-blog/5-privesc-attack-vectors-in-aws"]
|
|
risk_score = 21
|
|
rule_id = "a60326d7-dca7-4fb7-93eb-1ca03a1febbd"
|
|
severity = "low"
|
|
tags = ["Elastic", "Cloud", "AWS", "Continuous Monitoring", "SecOps", "Identity and Access"]
|
|
timestamp_override = "event.ingested"
|
|
type = "query"
|
|
|
|
query = '''
|
|
event.dataset:aws.cloudtrail and event.provider:iam.amazonaws.com and event.action:UpdateAssumeRolePolicy and event.outcome:success
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1078"
|
|
name = "Valid Accounts"
|
|
reference = "https://attack.mitre.org/techniques/T1078/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0004"
|
|
name = "Privilege Escalation"
|
|
reference = "https://attack.mitre.org/tactics/TA0004/"
|
|
|