~/talk

Attacking Modern Web Technologies

github:fransr
slides:none on file

Shows concrete exploits and tools: a live postMessage tracker extension that logs cross-frame listeners and finds anonymous handlers, demos extracting CSRF and secret links from Dropbox leading to a $12,000 bounty, concrete S3 bucket de‑cloaker techniques, broken upload policy patterns that allow arbitrary file overwrite and signed‑URL leakage, client‑side race conditions that inject payment providers, and notes on appcache/serviceworker pitfalls and misconfigured AWS/Google Cloud policies allowing full asset takeover.

AI-written summary · about

  1. 0:00Introduction
  2. 0:27Attacking Modern Web Technologies
  3. 0:52About Frans Rosen
  4. 1:52Outline of the talk
  5. 2:28AppCache
  6. 8:28Dropbox
  7. 11:30Upload Policies
  8. 15:50Custom Policies
  9. 18:13Postmessage
  10. 24:45Document Service
  11. 25:53Clientside Race Conditions
  12. 28:39Example
  13. 34:50Speed Bumps
  14. 36:37jQuery
  15. 38:13What could I add to it
  16. 39:30One more thing
  17. 41:23Questions
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