Episode 157: Crushing Pwn2Own & H1 with Kernel Driver Exploits

Episode 157: In this episode of Critical Thinking - Bug Bounty Podcast we’re joined by Hypr to talk about hacking Mediatek and his experiences with HackerOne and Pwn2Own Ecosystems. 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, rez0 and gr3pme on X: https://x.com/Rhynorater https://x.com/rez0__ https://x.com/gr3pme Critical Research Lab: https://lab.ctbb.show/ ====== 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 Guest: https://x.com/hyprdude ====== This Week in Bug Bounty ====== Top 10 web hacking techniques of 2025: call for nominations https://portswigger.net/research/top-10-web-hacking-techniques-of-2025-nominations-open CVE-2025-13467 https://access.redhat.com/security/cve/cve-2025-13467 ====== Resources ====== Hypr's Blog https://blog.coffinsec.com mediatek? more like media-rekt, amirite. https://blog.coffinsec.com/0days/2025/12/15/more-like-mediarekt-amirite.html kernel-utils https://github.com/mellow-hype/kernel-utils ====== Timestamps ====== (00:00:00) Introduction (00:03:23) Heap Overflow in Mediatek Kernel Drivers (00:19:23) Kernel Debugging & ioctl Handlers (00:43:30) Input Structs, Sync to Source, & Privilege Escalation (00:51:30) HackerOne Ecosystem vs Pwn2Own Ecosystem (01:17:00) Kernel Utils (01:26:46) Real World Bugs for Exploit Development vs CTFs