Critical Thinking - Bug Bounty Podcast

Latest Episodes:

Episode 85: Practical Applications of DEFCON 32 Web Research Aug 22, 2024

Show notes

Episode 85: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joel talk through some of the research coming out of DEFCON, mainly from the PortSwigger team. Web timing attacks, cache exploitation, and exploits related to email protocols are all featured. Plus we also talk some fun Apache hacks from Orange Tsai

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 ------

Find the Hackernotes: https://blog.criticalthinkingpodcast.io/

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!

Check out our new SWAG store at https://ctbb.show/swag!

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 - ThreatLocker

Resources

Listen to the whispers

https://portswigger.net/research/listen-to-the-whispers-web-timing-attacks-that-actually-work

Splitting the email atom

https://portswigger.net/research/splitting-the-email-atom

Gotta cache 'em all

https://portswigger.net/research/gotta-cache-em-all

HTTP Garden

https://github.com/narfindustries/http-garden

Confusion Attacks: Exploiting Hidden Semantic Ambiguity in Apache HTTP Server!

https://blog.orange.tw/2024/08/confusion-attacks-en.html#%E2%9C%94%EF%B8%8F-2-2-2-Local-Gadget-to-XSS

Trusted API Types

https://developer.mozilla.org/en-US/docs/Web/API/Trusted_Types_API

Untrusted Types

https://github.com/filedescriptor/untrusted-types

Timestamps:

(00:00:00) Introduction

(00:09:45) 'Listen to the whispers'

(00:30:03) 'Splitting the email atom'

(00:58:42) 'Gotta cache 'em all'

(01:21:03) 'Confusion Attacks'

Episode 84: 0xLupin & Takeaways from Google's Las Vegas BugSwat Aug 15, 2024

Show notes

Episode 84: In this episode of Critical Thinking - Bug Bounty Podcast, Justin is joined by Roni Carta (@0xLupin) to discuss their MVH win at the recent Google LHE, and share some technical observations they had with the target and the event.

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 ------

Find the Hackernotes: https://blog.criticalthinkingpodcast.io/

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 Guest: https://x.com/0xLupin

Today’s Sponsor - ThreatLocker

Timestamps:

(00:00:00) Introduction

(00:02:12) MHV Debrief

(00:09:05) Sandboxes and Comfort Zones

(00:13:24) SDKs and Legal Compliance

(00:19:29) Age of Target and Platform-Exclusive Hunters

Episode 83: Brainstorming Proxy Plugins Aug 08, 2024

Show notes

Episode 83: In this episode of Critical Thinking - Bug Bounty Podcast Joel and Justin are brainstorming new features and improvements for Caido, such as the implementation of a 403 bypassing workflow, a text expander, Tracing Cookies, and more.

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 - ThreatLocker

Resources:

Post from Gareth Heyes

https://x.com/garethheyes/status/1811084674988474417

Wiki List of XML and HTML

https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#List_of_character_entity_references_in_HTML

HackerOne Leaderboard Changes

https://x.com/scarybeasts/status/1810813103354892666

Espanso

https://espanso.org/

Critical Thinkers Discord

ctbb.show/criticalthinkers

Oauth Scan

https://portswigger.net/bappstore/8ef2db1173e8432c8797831c2e730727

Timestamps:

(00:00:00) Introduction

(00:03:12) News

(00:13:20) Into the Brainstorm

(00:13:41) 403 Bypasser

(00:20:34) "Expaido"

(00:31:34) Trace Cookies

(00:42:01) Highlight Decoding Expansion and AI integrations

(00:49:08) OAuth Testing, API Highlighter, and Note-taking

Episode 82: Part-Time Bug Bounty Aug 01, 2024

Show notes

Episode 82: In this episode of Critical Thinking - Bug Bounty Podcast Joel Margolis discusses strategies and tips for part-time bug bounty hunting. He covers things like finding (and enforcing) balance, picking programs and goals, and streamlining your process to optimize productivity.

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 - ThreatLocker

Resources:

Evernote RCE Post

https://0reg.dev/blog/evernote-rce

ServiceNow Bug Chain

https://www.assetnote.io/resources/research/chaining-three-bugs-to-access-all-your-servicenow-data

Douglas Day's Talk on finding 'no's'

https://youtu.be/G1RHa7l1Ys4?si=TY16ULsEIfJ9CMKk

Timestamps:

(00:01:37) Introduction

(00:02:24) Evernote RCE Post

(00:06:47) AssetNote ServiceNow Bug Chain

(00:12:16) Part-Time Bug Bounty: Balance and Accountability

(00:18:04) Picking programs: Impact and Payout

(00:28:46) Streamline your process

Episode 81: Crushing Client-Side on Any Scope with MatanBer Jul 25, 2024

Show notes

Episode 81: In this episode of Critical Thinking - Bug Bounty Podcast Justin is joined by MatanBer to go over some recent bug reports, as well as share some tips and tricks on client-side hacking and using DevTools effectively.

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 - ThreatLocker

Today’s Guest: https://x.com/MtnBer

Resources:

Beyond XSS

https://aszx87410.github.io/beyond-xss/en/

Web VSCode XSS

https://gitlab.com/gitlab-org/gitlab/-/issues/461328

Timestamps

(00:00:00) Introduction

(00:05:24) Learning and Labs

(00:17:29) DevTools tips and tricks

(00:49:49) General Client-Side hacking tips

(01:09:59) Self-XSS Storytime

(01:32:16) Bug Reports

(01:46:37) Brainstorming a Client-side HUD

Episode 80: Pwn2Own VS H1 Live Hacking Event (feat SinSinology) Jul 18, 2024

Show notes

Episode 80: In this episode of Critical Thinking - Bug Bounty Podcast Justin is joined by Sina Kheirkhah to talk about the start of his hacking journey and explore the differences between the Pwn2Own and HackerOne Events

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 - ThreatLocker

Today’s Guest: https://x.com/SinSinology

Blog: https://sinsinology.medium.com/

Resources:

WhatsUp Gold Pre-Auth RCE

Advanced .NET Exploitation Training

Alex Plaskett interview

TippingPoint

Flashback Team

Timestamps:

(00:00:00) Introduction

(00:12:45) Learning, Mentorship, and Failure

(00:29:34) Pentesting and Pwn2Own

(00:40:05) Hacking methodology

(01:01:57) Debuggers and shells in IoT Devices

(01:35:40) Differences between ZDI and HackerOne

(02:02:27) Pwn2Own Steps and Stories

(02:14:06) Master of Pwn Title

(02:29:54) Bug reports

Episode 79: The State of CSS Injection - Leaking Text Nodes & HTML Attributes Jul 11, 2024

Show notes

Episode 79: In this episode of Critical Thinking - Bug Bounty Podcast we deepdive CSS injection, and explore topics like sequential import chaining, font ligatures, and attribute exfiltration.

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.

Resources:

SpaceRaccoon's Universal Code Execution Extensions

Escalating Client Side Path Traversal

Full-time Bug Bounty Blueprint

Sequential Import Chaining

CSS Exfiltation

Link that Justin was talking about

Font Ligatures

Lava Dome bypass

Stealing Data in Great Style

Steal Script Contents

Masato Kinugawa's tweet

Attacking with Just CSS

CSS Injection Primitives

Timestamps:

(00:00:00) Introduction

(00:02:32) Universal Code Execution

(00:11:32) Escalating Client Side Path Traversal

(00:16:56) Justin's Defcon talk & Bug Bounty Blueprint

(00:23:32) CSS Injection

(00:39:23) Font Ligatures

(00:54:30) Descent Override and display:block

Episode 78: Less Writing, More Hacking - Reporting Efficiency Techniques Jul 04, 2024

Show notes

Episode 78: In this episode of Critical Thinking - Bug Bounty Podcast we’re talking about writing reports. We share some tips that we’ve learned, and discuss ways that AI can (and can’t) help with that process. We also talk about the benefit of using tools like Fabric, Loom, and ShareX.

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

Today’s Sponsor - ThreatLocker

Resources:

XSS WAF Bypass by multi-char HTML entities

Shazzer

Next.js and cache poisoning

Nagli's Nuclei Template

hey why can't you fix this one bug

Justin's reporting templating software

Fabric

BB Report Formatter

2to3 Automated Python Converter

ShareX

Skitch

Timestamps:

(00:00:00) Introduction

(00:04:00) XSS WAF Bypass by Multi-char HTML Entities

(00:11:59) Next.js and Cache Poisoning

(00:18:03) Nagli's Nuclei Template and Sean Yeoh's Blog

(00:27:34) Report Writing and AI

(00:50:02) Reporting tips

Episode 77: Bug Bounty Mental - Practical Tips for Staying Sharp & Motivated Jun 27, 2024

Show notes

Episode 77: In this episode of Critical Thinking - Bug Bounty Podcast Joel and Justin discuss some fresh writeups including some MongoDB injections, ORMs, and exploits in Kakao and iOS before pivoting into a conversation about staying motivated and avoiding burnout while 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.

Resources:

MongoDB NoSQL Injection

https://soroush.me/blog/2024/06/mongodb-nosql-injection-with-aggregation-pipelines/

Mongo DB Is Web Scale

https://www.youtube.com/watch?v=b2F-DItXtZs

1-click Exploit in Kakao

https://stulle123.github.io/posts/kakaotalk-account-takeover/

Unsecure time-based secret and Sandwich Attack

https://www.aeth.cc/public/Article-Reset-Tolkien/secret-time-based-article-en.html

Reset Tolkien

https://github.com/AethliosIK/reset-tolkien

iOS URL Scheme Hijacking Revamped

https://evanconnelly.github.io/post/ios-oauth/

PLORMBING YOUR DJANGO ORM

https://www.elttam.com/blog/plormbing-your-django-orm/#content

Timestamps:

(00:00:00) Introduction

(00:02:07) MongoDB NoSQL Injection

(00:12:42) 1-click Exploit in Kakao

(00:33:21) Time-based secrets and Reset Tolkien

(00:39:26) iOS URL Scheme Hijacking Revamped

(00:51:42) ORMs

(00:58:57) Community Bug Submission

(01:07:45) Motivation, Mental Sharpness, and Burnout avoidance

Episode 76: Match & Replace - HTTP Proxies' Most Underrated Feature Jun 20, 2024

Show notes

Episode 76: In this episode of Critical Thinking - Bug Bounty Podcast we’re talking about Match and Replace and the often overlooked use cases for it, like bypassing paywalls, modifying host headers, and storing payloads. We also talk about the HackerOne Ambassador World Cup and the issues with dupe submissions, and go through some write-ups.

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

Zoom Session Takeover

https://nokline.github.io/bugbounty/2024/06/07/Zoom-ATO.html

SharePoint XXE

https://x.com/thezdi/status/1796207012520366552

Shazzer

https://shazzer.co.uk/

Timestamps:

(00:00:00) Introduction

(00:05:06) H1 Ambassador World Cup

(00:13:57) Zoom ATO bug