Elastic Security Detection Rules

AWS IAM Brute Force of Assume Role Policy

Last updated a year ago on 2024-05-21
Created 5 years ago on 2020-07-16

About

Identifies a high number of failed attempts to assume an AWS Identity and Access Management (IAM) role. IAM roles are used to delegate access to users or services. An adversary may attempt to enumerate IAM roles in order to determine if a role exists before attempting to assume or hijack the discovered role.
Tags
Domain: CloudData Source: AWSData Source: Amazon Web ServicesUse Case: Identity and Access AuditTactic: Credential AccessLanguage: kuery
Severity
medium
Risk Score
47
MITRE ATT&CK™

Credential Access (TA0006)(opens in a new tab or window)

↳ Brute Force (T1110)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Threshold Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
filebeat-*logs-aws.cloudtrail-*
Related Integrations

aws(opens in a new tab or window)

Query
event.dataset:aws.cloudtrail and
  event.provider:iam.amazonaws.com and event.action:UpdateAssumeRolePolicy and
  aws.cloudtrail.error_code:MalformedPolicyDocumentException and event.outcome:failure

Install detection rules in Elastic Security

Detect AWS IAM Brute Force of Assume Role Policy in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).