Episode 132: Archive Testing Methodology with Mathias Karlsson

Episode 132: Archive Testing Methodology with Mathias Karlsson

Episode 132: In this episode of Critical Thinking - Bug Bounty Podcast, Justin Gardner is joined by Mathias Karlsson to discuss vulnerabilities associated with archives. They talk about his new tool, Archive Alchemist, and explore topics like the significance of Unicode paths, symlinks, and TAR before they end up talking about Charsets again..

Follow us on twitter at: https://x.com/ctbbpodcast

Got any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.io

Shoutout to YTCracker for the awesome intro music!

====== Links ======

Follow your hosts Rhynorater and Rez0 on Twitter:

====== Ways to Support CTBBPodcast ======

Hop on the CTBB Discord!

You can also find some hacker swag at https://ctbb.show/merch!

Today's Sponsor: ThreatLocker - Patch Management

Today’s Guest: Mathias Karlsson

====== This Week in Bug Bounty ======

Swiss Post's 2025 Public Intrusion Test starts on July 28

Intigriti teams with NVIDIA

Bugcrowd Ingenuity Awards

Hack the Hacker Series - AI Vulnerabilities and Bug Bounties

A Novel Technique for SQL Injection in PDO’s Prepared Statements

How We Accidentally Discovered a Remote Code Execution Vulnerability in ETQ Reliance

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

Archive Alchemist

Hacking Livestream #53: The ZIP file format

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

(00:00:00) Introduction

(00:10:04) Archive Alchemist

(00:36:05) Unicode Extensions, normalization, and confusion attacks on Zip parsers

(00:48:44) Character Sets

(01:01:49) 7zip & File Names

(01:06:44) Path Traversal, Symlinks & Identifying Techniques

(01:36:05) Hardlinks and TAR

Jaksot(161)

Episode 145: Gr3pme's Secret: Bug Bounty Note Taking Methodology

Episode 145: Gr3pme's Secret: Bug Bounty Note Taking Methodology

Episode 145: In this episode of Critical Thinking - Bug Bounty Podcast Brandyn lets us in on some of his notetaking tips, including his Templates, Threat Modeling, and ways he uses notes to help with ...

23 Loka 202528min

Episode 144: Google’s Top AI Hackers: Busfactor and Monke

Episode 144: Google’s Top AI Hackers: Busfactor and Monke

Episode 144: In this episode of Critical Thinking - Bug Bounty Podcast Joseph is joined by Vitor Falcão and Ciarán Cotter to discuss their success at the recent Mexico LHE, as well as their journey an...

16 Loka 202552min

Episode 143: New Cohost + Client-Side Gadgets, LHE Meta — Instant Global Admin in Entra!

Episode 143: New Cohost + Client-Side Gadgets, LHE Meta — Instant Global Admin in Entra!

Episode 143: In this episode of Critical Thinking - Bug Bounty Podcast Justin brings Brandyn back to announce him as our newest co-host. We chat about recent LHE experiences, and then break down some ...

9 Loka 20251h 4min

Episode 142: Gr3pme's Full-Time Hunting Journey Update, Insane AI research, And Some Light News

Episode 142: Gr3pme's Full-Time Hunting Journey Update, Insane AI research, And Some Light News

Episode 142: In this episode of Critical Thinking - Bug Bounty Podcast Rez0 and Gr3pme join forces to discuss Websocket research, Meta’s $111750 Bug, PROMISQROUTE, and the opportunities afforded by go...

2 Loka 202554min

Episode 141: Hacking the Pod - Google Docs 0-day & React CreateElement Exploits with Nick Copi (7urb0)

Episode 141: Hacking the Pod - Google Docs 0-day & React CreateElement Exploits with Nick Copi (7urb0)

Episode 141: In this episode of Critical Thinking - Bug Bounty Podcast Justin sits down with Nick Copi to talk about CSPT, React, CSS Injections and how Nick hacked the pod.Follow us on twitter at: ht...

25 Syys 20251h 23min

Episode 140: Crit Research Lab Update & Client-Side Tricks Galore

Episode 140: Crit Research Lab Update & Client-Side Tricks Galore

Episode 140: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph give an update from The Crit Research Lab, as well as some writeups on postMessage vulnerabilities, Cookie Chao...

18 Syys 202557min

Episode 139: James Kettle - Pwning in Prod & How to do Web Security Research

Episode 139: James Kettle - Pwning in Prod & How to do Web Security Research

Episode 139: In this episode of Critical Thinking - Bug Bounty Podcast Justin finally sits down with the great James Kettle to talk about HTTP Proxys, metagaming research, avoiding burnout, and why HT...

11 Syys 20252h 21min

Episode 138: Caido Tools and Workflows

Episode 138: Caido Tools and Workflows

Episode 138: In this episode of Critical Thinking - Bug Bounty Podcast We’re talking Caido tools and workflows. Justin gives us a list of some of the Caido tools that have caught his interest, as well...

4 Syys 202522min