Enumerate Waf Rules (aws)

Platform	Author	Last Update
aws	Nick Jones	2024-12-02

An attacker may attempt to enumerate the rulesets applied to any configured WAFs, to aid further exploitation of applications

MITRE IDs

• T1518.001

Required Permissions

• wafv2:ListWebACLs

Required Parameters

None

Attacker Action

aws waf list-web-acls

Detection Case

ELK query

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

eventName:ListWebACLs AND eventSource:waf.amazonaws.com

Sigma Definition

---
title: Enumerate WAF Rules
id: c5dc6f58-05f1-48ae-8b39-1c441729517b
status: experimental
author: Nick Jones
date: 2024-12-02
description: An attacker may attempt to enumerate the rulesets applied to any configured WAFs, to aid further exploitation of applications
logsource:
  service: cloudtrail
detection:
  selection_source:
    - eventSource: "waf.amazonaws.com"
  events:
    - eventName: "ListWebACLs"
  condition: selection_source and events
level: low
tags:
  - attack.T1518.001


falsepositives:
  - Developers making legitimate changes to the environment. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.