Publication How I Found a $90,000 Remote Code Execution Vulnerability in Google

How I Found a $90,000 Remote Code Execution Vulnerability in Google A leaked Flask session signing secret let an attacker forge session cookies containing malicious pickled data, turning OAuth state handling into unauthenticated remote code execution on several Google developer sites. The writeup shows how combiningpicklewith client-controlled session data can turn a secret leak into code execution, and why untrusted data should never cross a pickle dese... https://simonkoeck.com/writeups/google-devsite-flask-session-pickle-rce