Episode 45: The OG Bug Bounty King - Frans Rosen

Episode 45: The OG Bug Bounty King - Frans Rosen

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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We're new to this podcasting thing, so feel free to send us any feedback here: info@criticalthinkingpodcast.io

Shoutout to YTCracker for the awesome intro music!

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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

Jaksot(161)

Episode 113: Best Technical Takeaways from Portswigger Top 10 2024

Episode 113: Best Technical Takeaways from Portswigger Top 10 2024

Episode 113: In this episode of Critical Thinking - Bug Bounty Podcast we’re breaking down the Portswigger Top 10 from 2024. There’s some bangers in here!Follow us on X at: https://x.com/ctbbpodcastGo...

6 Maalis 20251h 29min

Episode 112: Interview with Ciarán Cotter (MonkeHack) -  Critical Lab Researcher and Full-time Hunter

Episode 112: Interview with Ciarán Cotter (MonkeHack) - Critical Lab Researcher and Full-time Hunter

Episode 112: In this episode of Critical Thinking - Bug Bounty Podcast Joseph Thacker is joined by Ciarán Cotter (Monke) to share his bug hunting journey and give us the rundown on some recent client-...

27 Helmi 20251h 7min

Episode 111: How to Bypass DOMPurify in Bug Bounty with Kevin Mizu

Episode 111: How to Bypass DOMPurify in Bug Bounty with Kevin Mizu

Episode 111: In this episode of Critical Thinking - Bug Bounty Podcast Justin interviews Kevin Mizu to showcase his knowledge regarding DOMPurify and its misconfigurations. We walk through some of Kev...

20 Helmi 20251h 49min

Episode 110: Oauth Gadget Correlation and Common Attacks

Episode 110: Oauth Gadget Correlation and Common Attacks

Episode 110: In this episode of Critical Thinking - Bug Bounty Podcast we hit some quick news items including a DOMPurify 3.2.3 Bypass, O3 mini updates, and a cool postLogger Chrome Extension. Then, w...

13 Helmi 202549min

Episode 109: Creative Recon - Alternative Techniques

Episode 109: Creative Recon - Alternative Techniques

Episode 109: In this episode of Critical Thinking - Bug Bounty Podcast we start off with a quick recap of some of the DeepSeek Drama that’s been going down, and discuss AI in CAPTCHA and 2FA as well. ...

6 Helmi 20251h 1min

Episode 108: How to Hack Salesforce, ServiceNow, and Other SaaS Products With Aaron Costello

Episode 108: How to Hack Salesforce, ServiceNow, and Other SaaS Products With Aaron Costello

Episode 108: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph bring on Aaron Costello to discuss SaaS security and misconfigurations as a bug class. He also gives some in-de...

30 Tammi 20251h 31min

Episode 107: Bypassing Cross-Origin Browser Headers

Episode 107: Bypassing Cross-Origin Browser Headers

Episode 107: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph are tackling the subject of cross-origin security headers. They also cover some news items including Google’s O...

23 Tammi 20251h 6min

Episode 106: Announcing our new cohost...

Episode 106: Announcing our new cohost...

Episode 106: In this episode of Critical Thinking - Bug Bounty Podcast we are pleased to announce our new co-host of the podcast: Joseph Thacker Aka Rez0! We discuss Joseph's transition to full-time b...

16 Tammi 202558min