Podcast
Critical Thinking - Bug Bounty Podcast
Hosted by Justin Gardner (Rhynorater), Joseph Thacker (Rez0), & Brandyn Murtagh (gr3pme) · EN
A "by Hackers for Hackers" podcast focused on technical content ranging from bug bounty tips, to write-up explanations, to the latest hacking techniques.
45episodes
Episodes
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Episode 111: How to Bypass DOMPurify in Bug Bounty with Kevin Mizu
Feb 20, 202501:49:15Tap to summarizeEpisode 111: In this episode of Critical Thinking - Bug Bounty Podcast Justin interviews Kevin Mizu to showcase his knowledge regarding DOMPurify and its misconfigurations. We walk through some of Kevin’s research, highlighting things like Dangerous allow-lists and URI Attributes, DOMPurify hooks, node manipulation, and DOM Clobbering.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!====== Resources ======Exploring the DOMPurify library: Bypasses and Fixes (1/2)https://mizu.re/post/exploring-the-dompurify-library-bypasses-and-fixesExploring the DOMPurify library: Hunting for Misconfigurations (2/2)https://mizu.re/post/exploring-the-dompurify-library-hunting-for-misconfigurationsDom-Explorer toolhttps://yeswehack.github.io/Dom-Explorer/shared?id=772a440c-b0c2-4991-be71-3e271cf7954fCT Episode 61: A Hacker on Wall Street - JR0ch17https://www.criticalthinkingpodcast.io/episode-61-a-hacker-on-wall-street-jr0ch17/====== Timestamps ======(00:00:00) Introduction(00:01:44) Kevin Mizu - Background and Bring-a-bug(00:15:09) DOMPurify(00:29:04) Misconfigurations - Dangerous allow-lists(00:39:09) Dangerous URI attributes configuration(00:46:08) Bad usage(00:59:55) DOMPurify Hooks: before, after, and upon SanitizeAttribute(01:29:15) Node manipulation, nodeName namespace case confusion, & DOM Clobbering DOS(01:36:51) Misc concepts for future research
Transcribe →Episode 110: Oauth Gadget Correlation and Common Attacks
Feb 13, 202500:49:41Tap to summarizeEpisode 110: In this episode of Critical Thinking - Bug Bounty Podcast we hit some quick news items including a DOMPurify 3.2.3 Bypass, O3 mini updates, and a cool postLogger Chrome Extension. Then, we hone in on OAuth vulnerabilities, API keys, and innovative techniques hackers use to exploit these systems.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 https://x.com/realytcracker 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!====== Resources ======DOMPurify 3.2.3 BypassJason Zhou's post about O3 miniLive Chat Blog #2: Cisco Webex ConnectpostLogger Chrome ExtensionpostLogger Webstore LinkCommon OAuth VulnerabilitiesnOAuth: How Microsoft OAuth Misconfiguration Can Lead to Full Account TakeoverAccount Takeover using SSO LoginsKai Greshake====== Timestamps ======(00:00:00) Introduction(00:01:44) DOMPurify 3.2.3 Bypass(00:06:37) O3 mini(00:10:29) Ophion Security: Cisco Webex Connect(00:15:54) Discord Community News(00:19:12) postLogger Chrome Extension(00:21:04) Common OAuth Vulnerabilities & Lessons learned from Google’s APIs
Transcribe →Ep 100 - 8 Fav Bugs of 2024, Farewell Joel, Hello Shift - Cursor of Hacking
Dec 5, 2024Tap to summarizeEpisode 100: In this episode of Critical Thinking - Bug Bounty Podcast we have a mixed bag. We celebrate 100 episodes of Critical Thinking, but also bid farewell to Joel, who will be leaving the show as a co-host, but returning as guest. Then we hear from a bunch of friends about their 'best bug of the year', before capping the episode with the announcement of a new AI tool we've been working on!Follow us on twitter at: @ctbbpodcastWe're new to this podcasting thing, so feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!------ Links ------Follow your hosts Rhynorater & Teknogeek on twitter:https://twitter.com/0xteknogeekhttps://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.ResourcesDeloreanhttps://github.com/jselvi/DeloreanShiftshiftwaitlist.comTimestamps(00:00:00) Introduction(00:07:32) Nagli(00:19:09) Shubs(00:35:00) Matt Brown(00:39:42) Matanber(00:57:52) Douglas Day(01:05:18) Alex Chapman(01:15:02) Nahamsec(01:25:45) Rez0(01:28:20) Shift Announcement
Transcribe →Episode 52: Best Technical Content from Year 1 of CTBB Podcast
Jan 4, 2024Tap to summarizeEpisode 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!Follow us on twitter at: @ctbbpodcastWe're new to this podcasting thing, so feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!------ Links ------Follow your hosts Rhynorater & Teknogeek on twitter:https://twitter.com/0xteknogeekhttps://twitter.com/rhynorater------ Ways to Support CTBBPodcast ------Sign up for Caido using the referral code CTBBPODCAST for a 10% discount.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
Transcribe →Episode 30: Recon Legend Shubs - From Burgers to Bounties
Aug 3, 2023Tap to summarizeEpisode 30: In this episode of Critical Thinking - Bug Bounty Podcast, we're thrilled to be joined by renowned bug bounty hunter Shubs. We kick off with him sharing his journey from burgers to bugs, and how his friendly rivalry with a fellow hacker fueled his passion for reconnaissance, as well as his love of collaboration. We then shift gears to talk about the art of debugging, ethics and economics of bug bounty hunting, the transition to Entrepreneur, and the evolution of Assetnote from a reconnaissance tool to enterprise security software suite. This one’s a banger, and we don’t want you to miss it!Follow us on twitter at: @ctbbpodcastWe're new to this podcasting thing, so feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!------ Links ------Follow your hosts Rhynorater & Teknogeek on twitter:https://twitter.com/0xteknogeekhttps://twitter.com/rhynoraterToday’s Guest:@infosec_auIntro Shoutoutshttps://twitter.com/bebiksiorhttps://cvssadvisor.com/Assetnotehttps://www.assetnote.io/https://twitter.com/assetnoteBishop Foxhttps://bishopfox.com/Shortscanhttps://github.com/bitquark/shortscanXXE Payloadhttps://gist.github.com/Rhynorater/d0d19f757221a916a22476c3a5c6aba2Timestamps(00:00:00) Introduction(00:05:48) History as a Hacker: Recon, rivalries, and Riot Games(00:12:13) Collaboration and Community in Bug Bounty(00:18:19) The Art of Debugging(00:21:48) Assetnote News and overview(00:30:43) CVE reversing(00:32:58) Zero-day vulns(00:42:48) Bug Bounty Ethics and Economics(00:52:53) Bug Bounty and Entrepreneurship(01:03:58) Business lessons learned(01:07:48) Advice for Hunters looking to grow(01:12:38) IIS Server Techniques
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