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Videos

March 9, 2024

COURSES, CERTS or SELF-TAUGHT? JR0ch17 shares his thoughts!

Where do you get the most bang for your buck: Courses, certs or self taught? JR0ch17 has done all three so we wanted to get his opinion! Get his full answer here: ctbb.show/61 What do you think?

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March 7, 2024

Exploiting PHP Filter Chains for Arbitrary File Read

Using an error based oracle (and some PHP quirks) to arbitrarily exfiltrate a file via PHP filter chains. This technique came 4th in the Portswigger's Top 10 and also made our own HackerNotes Top 5! Get the full details: ctbb.show/61

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March 7, 2024

GOD MODE PWNAGE with d3d! Abusing Akamai, to abuse F5, to abuse traffic routes, to steal NTLM creds

Coming in at number 8 is "From Akamai to F5 to NTLM... with love." by d3d! Abusing Akamai with request smuggling, to abuse F5 with cache poisoning, to abuse traffic routes, to steal NTLM credentials. This is what 3 months of research looks like! Get the low down here: ctbb.show/61

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March 7, 2024

A Hacker on Wall Street - JR0ch17 (Ep. 61)

Episode 61: In this episode of Critical Thinking - Bug Bounty Podcast Justin is joined by Jasmin Landry to share some stories about startup security, bug bounty, and the challenges of balancing both. He also shares his methodology for discovering OAuth-related bugs, highlights some differences between structured learning and self-teaching,…

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March 3, 2024

INSANE technique to exploit near unexploitable races with sub one millisecond hit times!

James Kettle combined Nagle's algorithm with HTTP/2 methods to create a single packet attack, resolving historical race condition issues caused by network jitter. Here's a quick rundown: - Use HTTP2 to bundle multiple HTTP requests into one TCP packet. - Delay the final byte and end stream frame for simultaneous…

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March 2, 2024

IS THE BACKSLASH ESCAPED!? If not, this is how you can use them to break context for JS execution.

Everything seems escaped. How about backslashes? If not then you might have found a "Context Break" gadget. Say you've got the following scenario: X = "your input"; Y = "your input"; Try adding a backslash to the end of your input to un-terminate the string. If the backslash isn't escaped…

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Feb. 29, 2024

How I exploited a stored image injection vulnerability

I exploited a stored image injection vuln recently where I could repeatedly log a user into a different account and then they could never get access to their own account! Here's how I did it.

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Feb. 29, 2024

Our Take on PortSwigger's Top 10 Web Hacking Techniques of 2023 (Ep. 60)

Episode 60: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joel review the Portswigger Research list of top 10 web hacking techniques of 2023. Follow us on twitter at: https://twitter.com/ctbbpodcast We're new to this podcasting thing, so feel free to send us any feedback here: info@criticalthinkingpodcast.io…

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Feb. 27, 2024

This bug is SO CLUTCH! Client-side path traversal via open redirect.

Why? Because who's expecting malicious input to come back from a fetch request that they sent to their own API!? Watch the full episode here: ctbb.show/59

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Feb. 25, 2024

How I use gadgets to stay motivated in bug hunting!

I know how hard it is to stay motivated when you've been hacking for days and haven't found anything. Here's my tip:

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Feb. 24, 2024

We've got an EXCITING announcement!

We've got an exciting announcement...

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Feb. 22, 2024

How to turn math.random into math(NOT)random by calculating the seed!

How to turn math.random into math(NOT)random by calculating the seed! Watch the full episode with Youssef Sammouda here: ctbb.show/58

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Feb. 22, 2024

Bug Bounty Gadget Hunting & Hacker's Intuition (Ep. 59)

Episode 59: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joel discuss the concept of gadgets and how they can be used to escalate the impact of vulnerabilities. We talk through things like HTML injection, image injection, CRLF injection, web cache deception, leaking window location, self-stored…

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Feb. 20, 2024

Youssef confuses the triage team with this Scroll to Text Fragment exploitation!

Stored XSS? "Easy". SQL Injection? "Piece of cake". Manipulating page encoding for Scroll to Text Fragment exploitation? "Uhhhh... Can you hold?". Youssef throws more triage curveballs at us in this episode: https://loom.ly/ovfwWUc

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Feb. 18, 2024

Client-side race condition via postMessage with Youssef Sammouda (Ep. 58)

Client-side race condition via postMessage: 1. Initiate asynchronous request. 2. Before response, use postMessage to change origin. 3. Manipulated origin gains trust. ...you know where this is going. Youssef explains all in Ep. 58: https://loom.ly/ovfwWUc

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Feb. 17, 2024

Youssef hasn't duped in like 6 years! HOW!?

His creativity is next level and he hasn't duped in like 6 years! @samm0uda shares some crazy stories about race conditions, exploiting hash change events, and leveraging scroll to text fragments. Watch this episode now: https://loom.ly/ovfwWUc

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Feb. 15, 2024

Youssef Sammouda - Client-Side & ATO War Stories (Ep. 58)

Episode 58: In this episode of Critical Thinking - Bug Bounty Podcast we finally sit down with Youssef Samouda and grill him on his various techniques for finding and exploiting client-side bugs and postMessage vulnerabilities. He shares some crazy stories about race conditions, exploiting hash change events, and leveraging scroll…

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Feb. 8, 2024

Episode 57: Live Hacking Event Inside Scoop - H1-305

Episode 57: In this episode of Critical Thinking - Bug Bounty Podcast, Justin and Joel are live from Miami, and recap their experience and share takeaways from the live hacking event. They highlight the importance of paying attention to client-side routing and the growing bug class of client-side path traversal.…

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Feb. 1, 2024

Using Data Science to win Bug Bounty - Mayonaise (aka Jon Colston) (Ep. 56)

Episode 56: In this episode of Critical Thinking - Bug Bounty Podcast, Justin sits down with Jon Colston to discuss how his background in digital marketing and data science has influenced his hunting methodology. We dive into subjects like data sources, automation, working backwards from vulnerabilities, applying conversion funnels to…

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Jan. 25, 2024

Popping WordPress Plugins - Methodology Brain dump (Ep. 55)

Episode 55: In this episode of Critical Thinking - Bug Bounty Podcast, Justin is joined by Wordpress Security Researcher Ram Gall to discuss both functionality and vulnerabilities within Wordpress Plugins. Follow us on twitter Send us any feedback here: Shoutout to https://twitter.com/realytcracker for the awesome intro music! ====== Links ======…

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Jan. 18, 2024

White Box Formulas - Vulnerable Coding Patterns (Ep. 54)

Episode 54: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joel are back with news items and new projects. Joel shares about his personal scraping project to gather data on bug bounty programs and distribution Next, they announce the launch of HackerNotes, a podcast companion that…

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Jan. 11, 2024

500k/yr as Full-Time Bug Hunter & Content Creator - Nahamsec (Ep. 53)

Episode 53: In this episode of Critical Thinking - Bug Bounty Podcast,we’re joined by none other than NahamSec. We start by discusses the challenges he faced on his journey in bug bounty hunting and content creation, including personal struggles and the pressure of success.We also talk about finding balance and…

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Jan. 4, 2024

Best Technical Content from Year 1 of CTBB Podcast (Ep. 52)

Episode 52: In this episode of Critical Thinking - Bug Bounty Podcast we're going back and highlighting some of the best technical moments from the past year! Hope you enjoy this best of 2023 Supercut! Follow us on twitter at: @ctbbpodcast We're new to this podcasting thing, so feel free…

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Dec. 28, 2023

Hacker Stats 2023 & 2024 Goals (Ep. 51)

Episode 51: In this episode of Critical Thinking - Bug Bounty Podcast, Justin and Joel are back for the last episode of 2023. We discuss some noteworthy news items including a Hacker One Crit, Caido updates, and some Blind CSS. Then we dive into our own personal ‘Hackers Wrapped’ recap…

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