Show notes are at https://stevelitchfield.com/sshow/chat.html
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This is the audio podcast version of Troy Hunt's weekly update video published here: https://www.troyhunt.com/tag/weekly-update/
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Episode 58: Youssef Sammouda - Client-Side & ATO War Stories
Manage episode 401083284 series 3435922
Content provided by Justin Gardner (Rhynorater) & Joel Margolis (teknogeek), Justin Gardner (Rhynorater), and Joel Margolis (teknogeek). All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Justin Gardner (Rhynorater) & Joel Margolis (teknogeek), Justin Gardner (Rhynorater), and Joel Margolis (teknogeek) or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
Episode 58: In this episode of Critical Thinking - Bug Bounty Podcast we finally sit down with Youssef Samouda and grill him on his various techniques for finding and exploiting client-side bugs and postMessage vulnerabilities. He shares some crazy stories about race conditions, exploiting hash change events, and leveraging scroll to text fragments.
Follow us on twitter at: @ctbbpodcast
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 ------
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.
Today’s Guest: https://twitter.com/samm0uda?lang=en
Resources:
Client-side race conditions with postMessage:
Transferable Objects
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Transferable_objects
Every known way to get references to windows, in javascript:
https://bluepnume.medium.com/every-known-way-to-get-references-to-windows-in-javascript-223778bede2d
Youssef’s interview with BBRE
https://www.youtube.com/watch?v=MXH1HqTFNm0
Timestamps:
(00:00:00) Introduction
(00:04:27) Client-side race conditions with postMessage
(00:18:12) On Hash Change Events and Scroll To Text Fragments
(00:32:00) Finding, documenting, and reporting complex bugs
(00:37:32) PostMessage Methodology
(00:45:05) Youssef's Vuln Story
(00:53:42) Where and how to look for ATO vulns
(01:05:21) MessagePort
(01:14:37) Window frame relationships
(01:20:24) Recon and JS monitoring
(01:37:03) Client-side routing
(01:48:05) MITMProxy
77 episodes
Share
Manage episode 401083284 series 3435922
Content provided by Justin Gardner (Rhynorater) & Joel Margolis (teknogeek), Justin Gardner (Rhynorater), and Joel Margolis (teknogeek). All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Justin Gardner (Rhynorater) & Joel Margolis (teknogeek), Justin Gardner (Rhynorater), and Joel Margolis (teknogeek) or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
Episode 58: In this episode of Critical Thinking - Bug Bounty Podcast we finally sit down with Youssef Samouda and grill him on his various techniques for finding and exploiting client-side bugs and postMessage vulnerabilities. He shares some crazy stories about race conditions, exploiting hash change events, and leveraging scroll to text fragments.
Follow us on twitter at: @ctbbpodcast
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 ------
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.
Today’s Guest: https://twitter.com/samm0uda?lang=en
Resources:
Client-side race conditions with postMessage:
Transferable Objects
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Transferable_objects
Every known way to get references to windows, in javascript:
https://bluepnume.medium.com/every-known-way-to-get-references-to-windows-in-javascript-223778bede2d
Youssef’s interview with BBRE
https://www.youtube.com/watch?v=MXH1HqTFNm0
Timestamps:
(00:00:00) Introduction
(00:04:27) Client-side race conditions with postMessage
(00:18:12) On Hash Change Events and Scroll To Text Fragments
(00:32:00) Finding, documenting, and reporting complex bugs
(00:37:32) PostMessage Methodology
(00:45:05) Youssef's Vuln Story
(00:53:42) Where and how to look for ATO vulns
(01:05:21) MessagePort
(01:14:37) Window frame relationships
(01:20:24) Recon and JS monitoring
(01:37:03) Client-side routing
(01:48:05) MITMProxy
77 episodes
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Similar to Critical Thinking - Bug Bounty Podcast
Show notes are at https://stevelitchfield.com/sshow/chat.html
…
continue reading
This is the audio podcast version of Troy Hunt's weekly update video published here: https://www.troyhunt.com/tag/weekly-update/
…
continue reading
Big tech is transforming every aspect of our world. But how, and at what cost? This season of Land of the Giants – The Disney Dilemma – focuses on Disney’s ability to weather the ups and downs of the business cycle and changing tastes and explores what has kept it successful for over 100 years. The entertainment giant has leveraged nostalgia and its intellectual property to build a beloved brand, but after an acquisition spree that included Marvel, Lucasfilm, and 20th Century Fox, can it sus ...
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Three nerds discussing tech, Apple, programming, and loosely related matters.
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continue reading
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Go offline with the Player FM app!
Go offline with the Player FM app!
