detection-rules/rules/integrations/aws/privilege_escalation_sts_assumerole_usage.toml at main · DamiaPoquet/detection-rules · GitHub

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[metadata]
creation_date = "2021/05/17"
integration = ["aws"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2022/12/14"

[rule]
author = ["Austin Songer"]
description = """
Identifies the use of AssumeRole. AssumeRole returns a set of temporary security credentials that can be used to access
AWS resources. An adversary could use those credentials to move laterally and escalate privileges.
"""
false_positives = ["Automated processes that use Terraform may lead to false positives."]
index = ["filebeat-*", "logs-aws*"]
language = "kuery"
license = "Elastic License v2"
name = "AWS Security Token Service (STS) AssumeRole Usage"
note = """## Setup

The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule."""
references = ["https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html"]
risk_score = 21
rule_id = "93075852-b0f5-4b8b-89c3-a226efae5726"
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:sts.amazonaws.com and event.action:AssumedRole and
aws.cloudtrail.user_identity.session_context.session_issuer.type:Role and event.outcome:success
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1548"
name = "Abuse Elevation Control Mechanism"
reference = "https://attack.mitre.org/techniques/T1548/"


[rule.threat.tactic]
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1550"
name = "Use Alternate Authentication Material"
reference = "https://attack.mitre.org/techniques/T1550/"
[[rule.threat.technique.subtechnique]]
id = "T1550.001"
name = "Application Access Token"
reference = "https://attack.mitre.org/techniques/T1550/001/"


[rule.threat.tactic]
id = "TA0008"
name = "Lateral Movement"
reference = "https://attack.mitre.org/tactics/TA0008/"