Skip to content

Add an IAM User to a Group

Author Last Update
Nick Jones 2020-06-18

An attacker may attempt to add an IAM user to a group, in order to escalate their privileges

MITRE IDs

Required Permissions

  • iam:AddUserToGroup

Required Parameters

Name Type Description Example Value
group str Group to add user to example-group
user str IAM user to add to group example-user

Attacker Action

aws iam add-user-to-group --group-name example-group --user-name example-user

Detection Case

ELK query

When logs are ingested into ELK, the following Lucene query can be used to identify relevant events.

eventName:AddUserToGroup AND eventSource:iam.amazonaws.com  

Sigma Definition

---
title: Add an IAM User to a Group
id: 6e467337-484c-4b11-8a83-fb92af74afed
status: experimental
author: Nick Jones
date: 2020-06-18
description: An attacker may attempt to add an IAM user to a group, in order to escalate their privileges
logsource:
  service: cloudtrail
detection:
  selection_source:
    - eventSource: "iam.amazonaws.com"
  events:
    - eventName: "AddUserToGroup"
  condition: selection_source AND events
level: low
tags:
  - attack.t1089