Episode 135: In this episode of Critical Thinking - Bug Bounty Podcast Justin sits down with Ryan Barnett for a deep dive on WAFs. We also recap his Exploiting Unicode Normalization talk from DEFCON, and get his perspective on bug hunting from his time at Akamai. Follow us on twitter at: https://x.com/ctbbpodcast Got any ideas and suggestions? Feel free to send us any feedback here:
[email protected] Shoutout to YTCracker for the awesome intro music! ====== Links ====== Follow your hosts Rhynorater and Rez0 on Twitter: https://x.com/Rhynorater https://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 ! Today’s Sponsor - ThreatLocker. Checkout ThreatLocker Detect! https://www.criticalthinkingpodcast.io/tl-detect Today’s Guest: https://x.com/ryancbarnett ====== Resources ====== Accidental Stored XSS Flaw in Zemanta 'Related Posts' Plugin for TypePad https://webappdefender.blogspot.com/2013/04/accidental-stored-xss-flaw-in-zemanta.html XSS Street-Fight https://media.blackhat.com/bh-dc-11/Barnett/BlackHat_DC_2011_Barnett_XSS%20Streetfight-Slides.pdf Blackhat USA 2025 - Lost in Translation: Exploiting Unicode Normalization https://www.blackhat.com/us-25/briefings/schedule/#lost-in-translation-exploiting-unicode-normalization-44923 ====== Timestamps ====== (00:00:00) Introduction (00:02:49) Accidental Stored XSS in Typepad Plugin (00:06:34) Chatscatter & Abusing third party Analytics (00:11:42) Ryan Barnett Introduction (00:21:11) Virtual Patching & WAF Challenges (00:40:39) AWS API Gateways & Whitelisting Bug Hunter Traffic (00:49:59) Lost in Translation: Exploiting Unicode Normalization (01:11:29) CSPs at the WAF level & 'Bounties for Bypass'
