Episode 116: Auth Bypasses and Google VRP Writeups

Episode 116: In this episode of Critical Thinking - Bug Bounty Podcast Justin gives a quick rundown of Portswigger’s SAML Roulette writeup, as well as some Google VRP reports, and a Next.js middleware exploit.

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====== Resources ======

SAML roulette: the hacker always wins

https://portswigger.net/research/saml-roulette-the-hacker-always-wins

Loophole of getting Google Form associated with Google Spreadsheet with no editor/owner access

https://bughunters.google.com/reports/vrp/yBeFmSrJi

Loophole to see the editors of a Google Document with no granted access(owner/editor) with just the fileid (can be obtained from publicly shared links with 0 access)

https://bughunters.google.com/reports/vrp/7EhAw2hur

Cloud Tools for Eclipse - Chaining misconfigured OAuth callback redirection with open redirect vulnerability to leak Google OAuth Tokens with full GCP Permissions

https://bughunters.google.com/reports/vrp/F8GFYGv4g

Next.js, cache, and chains: the stale elixir

https://zhero-web-sec.github.io/research-and-things/nextjs-cache-and-chains-the-stale-elixir

Next.js and the corrupt middleware: the authorizing artifact

https://zhero-web-sec.github.io/research-and-things/nextjs-and-the-corrupt-middleware

====== Timestamps ======

(00:00:00) Introduction

(00:02:59) SAML roulette

(00:13:08) Google bugs

(00:20:16) Next.js and the corrupt middleware