Critical Thinking - Bug Bounty Podcast

Latest Episodes:

Episode 55: Popping WordPress Plugins - Methodology Braindump Jan 25, 2024

Show notes

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.

Send us any feedback here:

Shoutout to YTCracker for the awesome intro music!

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

Follow your hosts Rhynorater & Teknogeek on twitter:

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

WordFence - Sign up as a researcher! https://ctbb.show/wf

---

Hop on the CTBB Discord

We also do Discord subs at $25, $10, $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Today’s Guest:

Ramuel Gall

UpdraftPlus Vuln

XML-RPC PingBack

Unicode and Character Sets

Reflected XSS

POP Chain

WordpressPluginDirectory

Subscriber+ RCE in Elementor

Subscriber+ SSRF

Unauthed XSS via User-Agent header

Timestamps:

(00:00:00) Introduction

(00:05:55) Add_action & Nonces

(00:26:16) Add_filter & Register_rest_routes

(00:38:39) Page-related code & Shortcodes

(00:50:24) Top Sinks for WP

(01:02:19) Echo & SQLI Sinks

(01:15:07) Nonce Leak and wp_handle_upload

(01:18:16) Page variables & Pop Chains

(01:26:55) WP Escalations & Bug Reports

Episode 54: White Box Formulas - Vulnerable Coding Patterns Jan 18, 2024

Show notes

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 will summarize the main technical points of each episode. They also discuss a recent GitLab CVE and an invisible prompt injection, before diving into a discussion (or debate) about vulnerable code patterns.

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, $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Gitlab CVE

https://github.com/Vozec/CVE-2023-7028

https://about.gitlab.com/releases/2024/01/11/critical-security-release-gitlab-16-7-2-released/

Fix commit: https://gitlab.com/gitlab-org/gitlab/-/commit/abe79e4ec437988cf16534a9dbba81b98a2e7f18

Invisible Prompt Injection

https://x.com/goodside/status/1745511940351287394?s=20

Regex 101

https://regex101.com

Regex to Strings

https://www.wimpyprogrammer.com/regex-to-strings/

Timestamps

(00:00:00) Introduction

(00:01:54) Joel’s H1 Data Scraping Research

(00:19:23) HackerNotes launch

(00:21:29) Gitlab CVE

(00:27:45) Invisible Prompt Injection

(00:33:52) Vulnerable Code Patterns

(00:37:51) Sanitization, but then modification of data afterward

(00:45:39) Auth check inside body of if statement

(00:48:15) sCheck for bad patterns with if, but then don't do any control flow

(00:50:21) Bad Regex

(01:00:36) Replace statements for sanitization

(01:04:32) Anything that allows you to call functions or control code flow in uncommon ways

Episode 53: 500k/yr as Full-Time Bug Hunter & Content Creator - Nahamsec Jan 11, 2024

Show notes

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 managing mental energy, going the extra mile, and the importance of planning and setting goals for yourself before he walks us through some Blind XSS techniques.

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, $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Timestamps:

(00:00:00) Introduction

(00:01:37) Costs of Content Creation

(00:21:12) Hacking 'identities' and Pivoting

(00:36:49) Hacking Methodology

(00:58:59) Planning, Goals, and Nahamsec's 2023 Performance

(01:10:19) Blind XSS

(01:35:19) Going the extra mile in Bug Bounty

Episode 52: Best Technical Content from Year 1 of CTBB Podcast Jan 04, 2024

Show notes

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!

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, $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Timestamps:

(00:00:00) Introduction

(00:02:55) Episode 26: Meta tags and base tags in HTML

(00:15:20) Episode 27: Client-side path traversal

(00:23:18) Episode 27: Cookie bombing + cookie jar overflow

(00:35:47) Episode 44: Cross environment authentication bugs

(00:43:17) Episode 47: The open-faced Iframe Sandwich

(00:50:19) Episode 47: js hoisting and classic Joel nerdsnipe

(00:58:28) Episode 29: Sean Yeoh on Subdomains vs IP in recon

(01:04:05) Episode 30: Shubs on reversing enterprise software

(01:24:58) Episode 30: Shubs on building out a recon flow

(01:29:36) Episode 30: Shubs on Hacking IIS Servers

(01:36:45) Episode 37: 0xLupin on smart JavaScript analysis tools

(01:45:42) Episode 45: Frans Rosen On App cache, Service workers cookie stuffing, and postMessage

(02:15:02) Episode 50: Mathias Karlsson on XSLT and MXSS

(02:39:26) Episode 27: Assetnote's sharefile RCE

(02:48:18) Episode 31: Perforce RCE

(02:53:48) Episode 48: Sam Erb's XSLT bug story

(02:58:47) Final thoughts and Special Thanks

Episode 51: Hacker Stats 2023 & 2024 Goals Dec 28, 2023

Show notes

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 of the year, before laying out some goals for 2024.

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, $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Resources

CTF Payload Challenge

Hacker One Crit Report

Blind CSS Injection

Timestamps

(00:00:00) Introduction

(00:08:43) Keyboard Shortcut Utility Systems

(00:21:28) CTF Challenge By Frans

(00:32:40) Hacker One 25K Crit Disclosure

(00:36:31) Caido Searchbar Rework.

(00:40:51) Blind CSS Exfiltration

(00:44:10) 2023 Personal Bug Bounty Stats

(01:01:15) 2024 Personal Bug Bounty Goals

Episode 50: Mathias 'Fall in a well' Karlsson - Bug Bounty Prophet Dec 21, 2023

Show notes

Episode 50: In this episode of Critical Thinking - Bug Bounty Podcast, Justin catches up with hacking master Mathias Karlsson, and talks about burnout, collaboration, and the importance of specialization. Then we dive into the technical details of MXSS and XSLT, character encoding, and give some predictions of what Bug Bounty might look like in the future…

Send us any feedback here: info@criticalthinkingpodcast.io

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!

We also do Discord subs at $25, $10, $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Today’s Guest

Episode Resources

How to Differentiate Yourself as a Hunter

MutateMethods

hackaplaneten

Article About Unicode and Character Sets

EXPLOITING HTTP'S HIDDEN ATTACK-SURFACE

Timestamps:

(00:00:00) Introduction

(00:10:06) Automation Setup and Assetnote Origins

(00:16:49) Sharing Tips, and Content Creation

(00:22:27) Collaboration and Optimization

(00:36:44) Working at Detectify

(00:51:45) Bug Bounty Burnout

(00:56:15) Early Days of Bug Bounty and Future Predictions

(01:19:00) Nerdsnipeability

(01:29:38) MXSS and XSLT

(01:54:20) Learning through being wrong

(02:00:15) Go-to Vulns

Episode 49: Getting Live Hacking Event Invites & Bug Bounty Collab with Nagli Dec 14, 2023

Show notes

Episode 49: In this episode of Critical Thinking - Bug Bounty Podcast, Justin Gardner is once again joined by Nagli to discuss some of their recent hacking discoveries. They talk about finding and exploiting a backup file in an ASP.NET app, discovering vulnerabilities through Swagger files, and debating the vulnerability of a specific ‘undisclosed’ domain. Then they reflect on 2023’s Live Hacking Event circuit, and preview what’s to come in 2024’s.

This episode sponsored by Wordfence! Wordfence recently launched a game-changer of a bug bounty program with ALL WordPress plugins over 50k installs are in-scope. They are currently paying 6.25x their normal bounty amounts, and have agreed to give CT listeners a 10% bonus on top of that! If you wanna pop some crits and see those bounties roll in, head over to https://ctbb.show/wf for more info and keep an eye on the CTBB Discord for inspiration/collabs.

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:

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

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

We also do Discord subs at $25, $10, $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Today’s Guest

Episode Resources:

Shockwave

Why So Serial

New LHE Standards Dropped

Timestamps:

(00:00:00) Introduction

(00:02:37) wwwroot .zip Hack Recap

(00:13:44) Swagger File Hack Recap

(00:18:27) Undisclosed URL Hack Recap

(00:24:29) 2023 LHE Circut Recap

(00:37:14) 2024 LHE Preview and New Standards

(00:47:22) Bug Bounty Motivation

Episode 48: MVH, DEFCON Black Badge, Googler - Sam Erb Dec 07, 2023

Show notes

Episode 48: In this episode, joined by the spectacular Sam Erb, Google Security Engineer and DEFCON Black Badge winner. We talk about the importance of understanding how systems work to find vulnerabilities, and how his engineering background influences his hunting style and methodologies. Then we jump over to his Career Development and his work with Google, and then chat about some of the recent Google Vulnerability Programs.

This episode is sponsored by Wordfence! Wordfence recently launched a game-changer of a bug bounty program with ALL WordPress plugins over 50k installs are in-scope. They are currently paying 6.25x their normal bounty amounts, and have agreed to give CT listeners a 10% bonus on top of that! Head over to https://ctbb.show/wf for more info and keep an eye on the CTBB Discord for inspiration/collabs.

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:

—— Ways to Support CTBBPodcast ——

Hop on the CTBB Discord

Discord premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.

Today’s Guest:

https://twitter.com/erbbysam

Sam Erbs Static Secret

Security Now Podcast

BIMI:

And

https://bimigroup.org/

Google Device Vulnerability Reward Program Initiatives

Google Invalid Reports

Hacking Google

Transcripts

(00:00:00) Introduction

(00:02:50) Hacker Methodology with Sam Erb

(00:12:20) Balancing Bug Hunting and Personal Life

(00:15:53) Deep Diving on a program and using automation.

(00:27:00) Optimizing Bug Hunting and Understanding Attack Vectors

(00:39:22) Collaboration and Boundaries

(00:45:42) Career Development and Entrepreneurship

(00:55:13) Winning Black Badges at DEFCON

(00:58:02) BufferOver

(01:09:11) Working at Google

(01:19:23) Google Bug Bounty Programs

(01:31:41) BONUS Cool Bugs

Episode 47: CSP Research, Iframe Hopping, and Client-side Shenanigans Nov 30, 2023

Show notes

Episode 47: In this episode of Critical Thinking - Bug Bounty Podcast, the holidays are fast approaching, and Justin and Joel discuss some of the struggles of getting back into the hacking groove during and after breaks. We also celebrate the newly launched Critical Thinking Discord Community before diving into Iframe Sandwhiches, JS Hoisting, CSP Bypasses, and a host of new tools, techniques, and tangents.

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!

ThankUNext

jswzl

Rapid API

SSRF Utility tool by Bebiks

Tweet from Johan Carlsson

Burp Extension from Google VRP

Justin's Tweet about JS Hoisting

Bypass CSP Using WordPress

How to trick CSP in letting you run whatever you want

Timestamps:

(00:00:00) Introduction

(00:01:58) Overcoming Bug Bounty struggles and getting back into the hacking groove

(00:07:46) Taking notes and sticking to one program

(00:14:50) Critical Thinking Discord, Community highlights, and Competition vs Collaboration

(00:22:25) Secondary context bugs and Automationism

(00:28:42) ThankUNext and Client-side Paths

(00:33:45) Tool Tangents: Jswzl, Caido, Postman, and Rapid API

(00:46:49) New SSRF Utility tool by Bebiks and the continuing evolution of hacking tools

(00:51:45) Iframe Sandwiches

(00:58:54) News Items

(01:06:12) JS Hoisting

(01:15:05) CSP Bypasses

Episode 46: The SAML Ramble Nov 23, 2023

Show notes

Episode 46: In this episode of Critical Thinking - Bug Bounty Podcast, Justin is deep diving the topic of SAML (Security Assertion Markup Language), and walks through what it is and why it can be intimidating, before going over some key attack vectors to look for. Then he closes out with a commentary on a sample payload, and some HackerOne 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 ------

KazHACKstan

https://kazhackstan.com/en

Testing SAML security with DAST

https://agrrrdog.blogspot.com/2023/01/testing-saml-security-with-dast.html

How to break SAML if I have paws?