HACKING MISCONFIGURED CLOUDFLARE R2 BUCKETS: A COMPLETE GUIDE

Summary from the TLDR InfoSec newsletter

This blog post discusses how to hack Cloudflare R2 buckets to discover sensitive files. Begin by utilizing Google dorking and examining HTTP requests to discover R2 buckets. Exploitation can then be done via abusing missing or improper authorization checks or finding exposed R2.dev buckets.