Episode 45: The OG Bug Bounty King - Frans Rosen

Critical Thinking - Bug Bounty Podcast

Episode 45: In this episode of Critical Thinking - Bug Bounty Podcast, we're thrilled to welcome Frans Rosén, an OG bug bounty hunter and co-founder of Detectify. We kick off with Frans sharing his journey bug bounty and security startups, before diving headfirst into a host of his blog posts. We also cover the value of pseudo-code for bug exploitation, understanding developer terminology, the challenges of collaboration and delegating tasks, and balancing hacking with parenting. If you're interested in bug bounty or entrepreneurship, you won't want to miss it!

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Today's Guest:

https://twitter.com/fransrosen

Detectify

Discovering s3 subdomain takeovers

Bucket Disclose

A deep dive into AWS S3 access controls

Attacking Modern Web Technologies

Live Hacking like a MVH

Account hijacking using Dirty Dancing in sign-in OAuth flows

Timestamps:

(00:00:00) Introduction

(00:04:50) Franz Rosen's Bug Bounty Journey and the creation of Detectify

(00:13:30) Benefits of pseudo-code, typing, and thinking like a developer

(00:20:20) Hunter Methodologies

(00:35:40) Time on targets, Iteration vs. Ideation, and tips for standing out

(00:51:10) S3 subdomain takeovers

(01:05:02) Blog posting and hosting motivations

(01:13:30) Detectify and entrepreneurial endeavors

(01:29:50) Attacking Modern Web Technologies

(01:46:00) postMessage and MessagePort

(01:58:09) Live Hacking and Collaboration

(02:13:50) Account Hijacking and OAuth Flows

(02:28:48) Hacking/Parenting