Critical Thinking - Bug Bounty Podcast

Latest Episodes:

Episode 75: *Rerun* of The OG Bug Bounty King - Frans Rosen Jun 13, 2024

Show notes

Episode 75: In this episode of Critical Thinking - Bug Bounty Podcast, Justin and Joel are sick, So instead of a new full episode, we're going back 30 episodes to review.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

------ Ways to Support CTBBPodcast ------

Hop on the CTBB Discord at https://ctbb.show/discord!

Today's Guest: https://twitter.com/fransrosen

Detectify

Discovering s3 subdomain takeovers

https://labs.detectify.com/writeups/hostile-subdomain-takeover-using-heroku-github-desk-more/

bucket-disclose.sh

https://gist.github.com/fransr/a155e5bd7ab11c93923ec8ce788e3368

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

(00:11:41) Franz Rosen's Bug Bounty Journey and Detectify

(00:20:21) Pseudo-code, typing, and thinking like a dev

(00:27:11) Hunter Methodologies and automationists

(00:42:31) Time on targets, Iteration vs. Ideation

(00:58:01) S3 subdomain takeovers

(01:11:53) Blog posting and hosting motivations

(01:20:21) Detectify and entrepreneurial endeavors

(01:36:41) Attacking Modern Web Technologies

(01:52:51) postMessage and MessagePort

(02:05:00) Live Hacking and Collaboration

(02:20:41) Account Hijacking and OAuth Flows

(02:35:39) Hacking + Parenthood

Episode 74: Supply Chain Attack Primer - Popping RCE Without an HTTP Request (feat 0xLupin) Jun 06, 2024

Show notes

Episode 74: In this episode of Critical Thinking - Bug Bounty Podcast Justin sits down with Roni "Lupin" Carta for a deep dive into supply chain attacks and dependency confusion. We explore the supply chain attacks, the ethical considerations surrounding maintainers and hosting packages on public registries, and chat about the vision and uses of his new tool Depi.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

------ 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.

Today's Sponsor - Project Discovery: https://nux.gg/podcast

Today’s Guest: https://x.com/0xLupin

Resources:

Dependency Confusion: How I Hacked Into Apple, Microsoft and Dozens of Other Companies

https://medium.com/@alex.birsan/dependency-confusion-4a5d60fec610

git-dump

https://github.com/tomnomnom/dotfiles/blob/master/scripts/git-dump

Depi

https://www.landh.tech/depi

Weak links of Supply Chain

https://arxiv.org/pdf/2112.10165

Timestamps:

(00:00:00) Introduction

(00:07:13) Overveiw of Supply Chain Flow

(00:15:14) Getting our Scope

(00:23:46) Depi

(00:29:12) Types of attacks and finding the 80/20

(00:45:06) Maintainer attacks

(01:10:40) Regestries, artifactories, and an npm bug

(01:31:51) Grafana NPX Confusion

Episode 73: Sandboxed IFrames and WAF Bypasses May 30, 2024

Show notes

Episode 73: In this episode of Critical Thinking - Bug Bounty Podcast we give a brief recap of Nahamcon and then touch on some topics like WAF bypass tools, sandboxed iframes, and programs redacting your reports.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

------ 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.

Today's Sponsor - Project Discovery: https://nux.gg/podcast

Resources:

?. Tweet

https://x.com/garethheyes/status/1786836956032176215

NoWafPls

https://github.com/assetnote/nowafpls

Redacted Reports

https://x.com/deadvolvo/status/1790397012468199651

Breaking CORS

https://x.com/MtnBer/status/1794657827115696181

Sandbox-iframe XSS challenge solution

https://joaxcar.com/blog/2024/05/16/sandbox-iframe-xss-challenge-solution/

iframe and window.open magic

https://blog.huli.tw/2022/04/07/en/iframe-and-window-open/#detecting-when-a-new-window-has-finished-loading

domloggerpp

https://github.com/kevin-mizu/domloggerpp

Timestamps

(00:00:00) Introduction

(00:03:29) ?. Operator in JS and NoWafPls

(00:07:22) Redacting our own reports

(00:11:13) Breaking CORS

(00:17:07) Sandbox-iframes

(00:24:11) Dom hook plugins

Episode 72: Research TLDRs & Smuggling Payloads in Well Known Data Types May 23, 2024

Show notes

Episode 72: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joel discuss some hot research from the past couple months. This includes ways to smuggle payloads in phone numbers and IPv6 Addresses, the NextJS SSRF, the PDF.JS PoC drop, and a GitHub Enterprise Indirect Method Information bug. Also, we have an attack vector featured from Monke!

Shoutout to YTCracker for the awesome intro music!

------ Links ------

Follow your hosts Rhynorater & Teknogeek 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.

Today's Sponsor - Project Discovery: https://nux.gg/podcast

Resources:

PDF.JS Bypass to XSS

https://github.com/advisories/GHSA-wgrm-67xf-hhpq

https://codeanlabs.com/blog/research/cve-2024-4367-arbitrary-js-execution-in-pdf-js/

PDFium

NextJS SSRF by AssetNote

Better Bounty Transparency for hackers

Slonser IPV6 Research

Smuggling payloads in phone numbers

Automatic Plugin SQLi

DomPurify Bypass

Bug Bounty JP Podcast

Github Enterprise send() bug

https://x.com/creastery/status/1787327890943873055

https://x.com/Rhynorater/status/1788598984572813549

Timestamps:

(00:00:09) Introduction

(00:03:20) PDF.JS XSS and NextJS SSRF

(00:12:52) Better Bounty Transparency

(00:20:01) IPV6 Research and Phone Number Payloads

(00:28:20) Community Highlight and Automatic Plugin CVE-2024-27956

(00:33:26) DomPurify Bypass and Github Enterprise send() bug

(00:46:12) Caido cookie and header extension updates

Episode 71: More VDP Chats & AI Bias Bounty Strats with Keith Hoodlet May 16, 2024

Show notes

Episode 71: In this episode of Critical Thinking - Bug Bounty Podcast Keith Hoodlet joins us to weigh in on the VDP Debate. He shares some of his insights on when VDPs are appropriate in a company's security posture, and the challenges of securing large organizations. Then we switch gears and talk about AI bias bounties, where Keith explains the approach he takes to identify bias in chatbots and highlights the importance of understanding human biases and heuristics to better hack AI.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

------ 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.

Today's Sponsor - Project Discovery: https://nux.gg/podcast

Today’s guest: Keith Hoodlet

https://securing.dev/

Resources:

Daniel Miessler's article about the security poverty line

https://danielmiessler.com/p/the-cybersecurity-skills-gap-is-another-instance-of-late-stage-capitalism/

Hacking AI Bias

https://securing.dev/posts/hacking-ai-bias/

Hacking AI Bias Video

https://youtu.be/AeFZA7xGIbE?si=TLQ7B3YtzPWXS4hq

Sarah's Hoodlet's new book

https://sarahjhoodlet.com

Link to Amazon Page

https://a.co/d/c0LTM8U

Timestamps:

(00:00:00) Introduction

(00:04:09) Keith's Appsec Journey

(00:16:24) The Great VDP Debate Redux

(00:47:18) Platform/Hunter Incentives and Government Regulation

(01:06:24) AI Bias Bounties

(01:26:27) AI Techniques and Bugcrowd Contest

Episode 70: NahamCon and CSP Bypasses Everywhere May 09, 2024

Show notes

Episode 70: In this episode of Critical Thinking - Bug Bounty Podcast we’re once again joined by Ben Sadeghipour to talk about some Nahamcon news, as well as discuss a couple other LHE’s taking place. Then they cover CI/CD and drop some cool CSP Bypasses.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

------ 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.

Today's Sponsor - Project Discovery: https://nux.gg/podcast

Today’s Guest: https://twitter.com/NahamSec

https://www.nahamcon.com/

Resources:

Depi

https://www.landh.tech/depi

Youtube CSP:

https://www.youtube.com/oembed?callback=alert()

Maps CSP:

https://maps.googleapis.com/maps/api/js?callback=alert()-print

Google APIs CSP

https://www.googleapis.com/customsearch/v1?callback=alert(1)

Google CSP

https://www.google.com/complete/search?client=chrome&q=123&jsonp=alert(1)//

CSP Bypass for opener.child.child.child.click()

https://octagon.net/blog/2022/05/29/bypass-csp-using-wordpress-by-abusing-same-origin-method-execution/

Timestamps:

(00:00:00) Introduction

(00:02:55) BSides Takeaways and hacking on Meta

(00:12:12) NahamCon News

(00:23:45) CI/CD and the launch of Depi

(00:33:29) CSP Bypasses

Episode 69: Johan Carlsson - 3 Month Check-in on Full-time Bug Bounty. May 02, 2024

Show notes

Episode 69: In this episode of Critical Thinking - Bug Bounty Podcast we’re joined by Johan Carlsson to hear about some updates on his bug hunting journey. We deep-dive a CSP bypass he found in GitHub, a critical he found in GitLab's pipeline, and also talk through his approach to using script gadgets and adapting to highly CSP'd environments. Then we talk about his transition to full-time bug hunting, including the goals he’s set, the successes and challenges, and his current focus on specific bug types like ReDoS and OAuth, and the serendipitous nature of bug hunting.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

------ 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.

Nuclei 3.2 Release: https://nux.gg/podcast

Today’s Guest:

https://twitter.com/joaxcar

https://joaxcar.com/blog/

Resources

Github CSP Bypass

https://gist.github.com/joaxcar/6e5a0a34127704f4ea9449f6ce3369fc

CSP Validator

https://cspvalidator.org/

Cross Window Forgery

https://www.paulosyibelo.com/2024/02/cross-window-forgery-web-attack-vector.html

Gitlab Crit

https://gist.github.com/joaxcar/9419b2df8778f26e9b02a741a8ec12f8

Timestamps

(00:00:00) Introduction

(00:09:34) Github CSP Bypass

(00:38:48) Script Gadgets and growth through Gitlab

(00:53:53) Gitlab pipeline bug

(01:12:32) Full-time Bug Bounty

Episode 68: 0-days & HTMX-SS with Mathias Apr 25, 2024

Show notes

Episode 68: In this episode of Critical Thinking - Bug Bounty Podcast Mathias is back with some fresh HTMX research, including CSP bypass using HTMX triggers, converting client-side response header injection to XSS, bypassing HTMX disable, and the challenges of using HTMX in larger applications and the potential performance trade-offs. We also talk about the results of his recent CTF Challenge, and explore some more facets of CDN-CGI functionality.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

Project Discovery Conference: https://nux.gg/hss24

------ 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.

Today’s Guest:

https://twitter.com/avlidienbrunn

Resources:

Masato Kinugawa's research on Teams

https://speakerdeck.com/masatokinugawa/how-i-hacked-microsoft-teams-and-got-150000-dollars-in-pwn2own?slide=33

subdomain-only 307 open redirect

https://avlidienbrunn.se/cdn-cgi/image/onerror=redirect/http://anything.avlidienbrunn.se

Timestamps

(00:00:00) Introduction

(00:05:18) CSP Bypass using HTML

(00:14:00) Converting client-side response header injection to XSS

(00:23:10) Bypassing hx-disable

(00:32:37) XSS-ing impossible elements

(00:38:22) CTF challenge Recap and knowing there's a bug

(00:51:53) hx-on (depreciated)

(00:54:30) CDN-CGI Research discussion

Episode 67: VDPs & Accidental Program VS Hacker Debate Part 2 Apr 18, 2024

Show notes

Episode 67: In this episode of Critical Thinking - Bug Bounty Podcast we deepdive on the topic of Vulnerability Disclosure Programs (VDPs) and whether they are beneficial or not. We also touch on the topic of leaderboard accuracy, and continue the Program VS Hacker debate regarding allocating funds for bounties.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

------ 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.

Project Discovery Conference: https://nux.gg/hss24

Resources:

Nagli's Braindump on VDPs

https://twitter.com/galnagli/status/1780174392003031515

Timestamps:

(00:00:00) Introduction

(00:05:37) VDP programs

(00:34:10) Leaderboards

(00:43:52) Hacker vs. Program debate Part 2

(01:07:24) Walling Off Endpoints

Episode 66: CDN-CGI Research, Intent To Ship, and Louis Vuitton Apr 11, 2024

Show notes

Episode 66: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joel discuss the recent YesWeHack Louis Vuitton LHE, the importance of failure as growth in bug bounty, and Justin shares his research on CDN CGI.

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!

------ Links ------

Follow your hosts Rhynorater & Teknogeek on twitter:

https://twitter.com/0xteknogeek

https://twitter.com/rhynorater

Project Discovery Conference: https://nux.gg/hss24

------ 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.

Resources:

YesWeHack Luis Vuitton LHE

https://twitter.com/yeswehack/status/1776280653744554287

https://event.yeswehack.com/events/hack-me-im-famous-2

Caido Workflows

https://github.com/caido/workflows

Oauth Redirects

https://twitter.com/Akshanshjaiswl/status/1724143813088940192

Bagipro Golden URL techniques

https://hackerone.com/reports/431002

Roadmap I followed to make 15,000+$ Bounties in my first 8 months https://shreyaschavhan.notion.site/Roadmap-I-followed-to-make-15-000-Bounties-in-my-first-8-months-of-starting-out-and-my-journey-98b1b9ff621645c0b97d1e774992f300

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