Episode 50: ­Mathias "Fall in a well" Karlsson - Bug Bounty Prophet

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 going full time in Bug Bounty.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout 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 at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!Today's Sponsor: ThreatLocker. Check out ThreatLocker DACToday’s Guest: https://x.com/gr3pme====== This Week in Bug Bounty ======New Monthly Dojo challenge and Dojo UI designThe ultimate Bug Bounty guide to exploiting race condition vulnerabilities in web applicationsWatch Our boy Brandyn on the TV====== Resources ======murtasecWebSocket Turbo Intruder: Unearthing the WebSocket GoldmineChaining Path Traversal Vulnerability to RCE — Meta’s 111,750$ BugFinding vulnerabilities in modern web apps using Claude Code and OpenAI CodexMind the GapPROMISQROUTE====== Timestamps ======(00:00:00) Introduction(00:05:16) Full Time Bug Bounty and Business Startups(00:15:50) Websockets(00:22:17) Meta’s $111750 Bug(00:28:38) Finding vulns using Claude Code and OpenAI Codex(00:39:32) Time-of-Check to Time-of-Use Vulns in LLM-Enabled Agents(00:45:22) PROMISQROUTE

2 Okt 54min

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: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater and Rez0 on Twitter:https://x.com/Rhynoraterhttps://x.com/rez0__====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!Today's Sponsor: ThreatLocker. Check out ThreatLocker DAChttps://www.criticalthinkingpodcast.io/tl-dacToday’s Guest: https://x.com/7urb01====== Resources ======regexploithttps://github.com/doyensec/regexploitFontleakhttps://adragos.ro/fontleak/debug(function)https://developer.chrome.com/docs/devtools/console/utilities#debug-functiondomloggerpphttps://github.com/kevin-mizu/domloggerpp====== Timestamps ======(00:00:00) Introduction(00:02:40) Google Docs Bug and 7urb0 Introduction(00:13:26) Bring-a-bug story(00:20:21) 7urb0's DEFCON talk teaser & Intrusive Thoughts Worth Sharing(00:30:01) CSPTs and React Apps(00:51:31) CSS Injections(01:04:55) 7urb0's backstory and game hacking(01:18:33) Worst Crit

25 Sep 1h 23min

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 Chaos, and more.Follow us on X at: https://x.com/ctbbpodcastGot any ideas and suggestions? Send us feedback at info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater and Rez0====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord!Get some hacker swag here!====== This Week in Bug Bounty ======Cross-site request forgeryHackerOne New Milestone ProgramEmail santerra.holler@bugcrowd.com for media opportunities====== Resources ======Exploiting Web Worker XSS with BlobsCritical Research LabRez0's TweetCVE-2022-21703: cross-origin request forgery against GrafanaConversation about Forcing Quirks ModeAI Busniess Logic & POC or GTFOHunting postMessage Vulnerabilities – Part 1Hunting postMessage Vulnerabilities – Part 2Executive OffenseCookie Chaos: How to bypass Host and Secure cookie prefixes====== Timestamps ======(00:00:00) Introduction(00:05:48) Crit Research Update(00:13:00) Encouragement & Collaboration(00:19:37) Cross-origin request forgery & Anthropic's web fetch(00:29:17) Quirks Mode, AI Business Logic & POC or GTFO(00:44:21) Hunting postMessage & Claude Code browserbase(00:51:25) Community story, Executive Offense, & Cookie Chaos

18 Sep 57min

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 HTTP/1.1 must die!Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater and Rez0 on Twitter: https://x.com/Rhynoraterhttps://x.com/rez0__====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!Today’s Guest: https://x.com/albinowaxhttps://jameskettle.com====== This Week in Bug Bounty ======Building an Android Bug Bounty labMobile Hacking Toolkit====== Resources ======CVE-2022-22720So you want to be a web security researcher?Hunting Evasive Vulnerabilities: Finding Flaws That Others Miss by James KettleHTTP/1.1 Must Die! The Desync EndgamePractical HTTP Host header attacks====== Timestamps ======(00:00:00) Introduction(00:05:01) Apache MITM-powered pause-based client-side desync(00:15:33) HTTP Proxys and Burp Suite HTTP/2 in Repeater(00:24:52) AI intagrations, life structure, and avoiding burnout(00:35:23) Client-side to server-side progression(00:47:39) The 'metagame' of security research(01:29:43) Host Header Attacks & HTTP/1.1 Must Die! (02:02:34) Is HTTP/2 the solution?

11 Sep 2h 21min

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 as how he’s using them.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater and Rez0 on Twitter: https://x.com/Rhynoraterhttps://x.com/rez0__====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!====== This Week in Bug Bounty ======Meet YesWeHack at ROOTCON 2025https://www.yeswehack.com/page/meet-yeswehack-at-rootcon-2025New Dojo challenge featuring a Local File Inclusion in a Ruby applicationhttps://dojo-yeswehack.com/challenge-of-the-month/dojo-44?utm_source=sponsor&utm_medium=challenge&utm_campaign=dojo-44AI Red Teaming CTFhttps://ctf.hackthebox.com/event/details/ai-red-teaming-ctf-ai-gon3-rogu3-2604====== Resources ======Web Security Labshttp://caido.rhynorater.com====== Timestamps ======(00:00:00) Introduction(00:02:32) Common filters & command palette in EvenBetter(00:06:49) Notes++(00:09:28) Shift Agents and Drop(00:15:34) Workflows

4 Sep 22min

Episode 137: In this episode of Critical Thinking - Bug Bounty Podcast Justin Gardner and Joseph Thacker reunite to talk about AI Hacking Assistants, CSPT and cache deception, and a bunch of tools like ch.at, Slice, Ebka, and more.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater and Rez0 on Twitter:https://x.com/Rhynoraterhttps://x.com/rez0__====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!====== This Week in Bug Bounty ======Vulnerability vectors: SQL injection for Bug Bounty huntersMozilla VPN Clients: RCE via file write and path traversal====== Resources ======Cache Deception + CSPT:dig @ch.atSearchlight Cyber ToolsSliceEbka-Caido-AIpostMessage targetOrigin bypass====== Timestamps ======(00:00:00) Introduction(00:01:26) Claude, Gemini, and Hacking Assistants(00:11:08) AI Safety(00:18:09) CSPT(00:23:26) ch.at, Slice, Ebka, & Searchlight Cyber Tools(00:45:19) postMessage targetOrigin bypass

28 Aug 49min

Episode 136: In this episode of Critical Thinking - Bug Bounty Podcast, Joseph Thacker sits down with Jack Cable to get the scoop on a significant bug in Cluely’s desktop application, as well as the resulting drama. They also talk about Jack’s background in government cybersecurity initiatives, and the legal risks faced by security researchers.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater and Rez0 on Twitter:https://x.com/Rhynoraterhttps://x.com/rez0__====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!Today’s Sponsor - ThreatLocker. Checkout ThreatLocker Detect! https://www.criticalthinkingpodcast.io/tl-detectToday’s Guest: https://x.com/jackhcable?lang=en====== This Week in Bug Bounty ======Nullcon Berlinhttps://www.yeswehack.com/page/yeswehack-live-hacking-nullcon-berlin-2025?utm_source=sponsor&utm_medium=blog&utm_campaign=lhe-nullcon-berlinBB Bulletin #15https://www.linkedin.com/pulse/bug-bounty-bulletin-15-yes-we-hack-dntue/2x Bounty on Grabhttps://hackerone.com/grab?type=team====== Resources ======Corridorhttps://corridor.dev/disclose.iohttps://disclose.io/====== Timestamps ======(00:00:00) Introduction(00:03:33) Cluely Bug, Government involvement, & Disclosed.io(00:12:33) AI in security & Corridor.dev(00:29:23) Cluely Bug Fallout & Ethics of hacking outside of Programs(00:41:20) Shift Agents

21 Aug 50min

Episode 135: In this episode of Critical Thinking - Bug Bounty Podcast Justin sits down with Ryan Barnett for a deep dive on WAFs. We also recap his Exploiting Unicode Normalization talk from DEFCON, and get his perspective on bug hunting from his time at Akamai. Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater and Rez0 on Twitter: https://x.com/Rhynoraterhttps://x.com/rez0__====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!Today’s Sponsor - ThreatLocker. Checkout ThreatLocker Detect! https://www.criticalthinkingpodcast.io/tl-detectToday’s Guest: https://x.com/ryancbarnett====== Resources ======Accidental Stored XSS Flaw in Zemanta 'Related Posts' Plugin for TypePadhttps://webappdefender.blogspot.com/2013/04/accidental-stored-xss-flaw-in-zemanta.htmlXSS Street-Fighthttps://media.blackhat.com/bh-dc-11/Barnett/BlackHat_DC_2011_Barnett_XSS%20Streetfight-Slides.pdfBlackhat USA 2025 - Lost in Translation: Exploiting Unicode Normalizationhttps://www.blackhat.com/us-25/briefings/schedule/#lost-in-translation-exploiting-unicode-normalization-44923====== Timestamps ======(00:00:00) Introduction(00:02:49) Accidental Stored XSS in Typepad Plugin (00:06:34) Chatscatter & Abusing third party Analytics(00:11:42) Ryan Barnett Introduction(00:21:11) Virtual Patching & WAF Challenges(00:40:39) AWS API Gateways & Whitelisting Bug Hunter Traffic(00:49:59) Lost in Translation: Exploiting Unicode Normalization(01:11:29) CSPs at the WAF level & 'Bounties for Bypass'

14 Aug 1h 26min