AWS S3 Public Access Block removed

cloudtrail

Classification:

attack

Tactic:

Technique:

Framework:

pci

Control:

7.2.1

이 페이지는 아직 한국어로 제공되지 않으며 번역 작업 중입니다. 번역에 관한 질문이나 의견이 있으시면 언제든지 저희에게 연락해 주십시오.

Goal

Detect when the S3 Public Access Block configuration has been removed

Strategy

This rule lets you monitor this CloudTrail API call to detect if an attacker is deleting the S3 Public Access Block configuration:

Triage and response

  1. Determine who the user was who made this API call.
  2. Contact the user and inform them of best practices of enabling Public Access Block on S3 buckets.
  3. Re-enable Public Access Block on the S3 bucket.

More details on S3 Public Block Public Access can be found here.

Changelog

  • 18 March 2022 - Updated severity and query.
  • 31 October 2022 - Updated severity.