Change default policy version¶
| Platform | Author | Last Update |
|---|---|---|
| aws | Nick Jones | 2023-07-01 |
An attacker may attempt to change the default policy version of a policy to one that includes a different set of permissions
MITRE IDs¶
Required Permissions¶
- iam:SetDefaultPolicyVersion
Required Parameters¶
| Name | Type | Description | Example Value |
|---|---|---|---|
| policy_arn | str | ARN of the policy to create a new version for | arn:aws:iam::123456789012:policy/test |
| policy_version | str | Version of the policy to set as default | v2 |
Attacker Action¶
aws iam set-default-policy-version –policy-arn policy_arn –version-id policy_version
Detection Case¶
ELK query¶
When logs are ingested into ELK, the following Lucene query can be used to identify relevant events.
eventName:SetDefaultPolicyVersion AND eventSource:iam.amazonaws.com
Sigma Definition¶
---
title: Change default policy version
id: 089c1b6a-1d77-4071-aac7-c91488ad88d5
status: experimental
author: Nick Jones
date: 2023-07-01
description: An attacker may attempt to change the default policy version of a policy to one that includes a different set of permissions
logsource:
service: cloudtrail
detection:
selection_source:
- eventSource: "iam.amazonaws.com"
events:
- eventName: "SetDefaultPolicyVersion"
condition: selection_source AND events
level: low
tags:
- attack.T1098