Achievement unlocked: Cracking a train social.hackerspace.pl/@q3k/111528162…

Omg no way

<- In Tokyo now but not for the CTF

Am I the only non-Japanese CTFer still in Japan since SECCON?

Just drop my slide here docs.google.com/presentation/d…

🚀 ACSC 2024 (Asian Cyber Security Challenge) is Happening!🚀 📅 March 30-31, 2024 🌟 Mark your calendars! 🔜 Registration opening soon. Don't miss out! More details here ▶️ acsc.asia #ACSC2024 #CyberSecurity #SaveTheDate

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🎉 ACSC CTF 2024 has been started! 🚀 Have fun and happy hacking! 🖥️💻🔒 #ACSCCTF2024 #CTF #icc #ic3game

PHP just fixed one of my RCE vulnerabilities, which affects XAMPP by default. Check to see if you are affected and update now! 🔥 blog.orange.tw/2024/06/cve-20…

Dreaming back to 2012 👀

I created a Linux Kernel challenge “Halloween” for the HITCON CTF Qual 2024 :). Below are the official writeup for “Halloween” and the unofficial writeups for "v8sbx" and "reEscape". Enjoy it! Halloween & v8sbx: u1f383.github.io/ctf/2024/07/16… reEscape: u1f383.github.io/ctf/2024/07/18…

I made one harder challenge 🐈‍⬛ wargame.d3vc0r3.tw

Excited to share our research on Kernel Streaming! We discovered several vulnerabilities in it that we used at Pwn2Own this year. Check it out: devco.re/blog/2024/08/2…

Cool findings 🐈‍⬛

Our hackathon for that website Worst.Fit was done successfully 🥰

🍊 pumped my followers to 1k

I will drop one web challenge there 🐈‍⬛

🤘Congrats Orange(Orange Tsai 🍊) and Splitline(splitline 👁️🐈‍⬛) on making it to 2024 Top 10 Web Hacking Techniques! Check out their groundbreaking research: portswigger.net/research/top-1…

DiceGang strellic This is just a rumor to make themselves feel better, CTFers doesn't have life and probably all single

The blog post is the full version of my talk at 38c3. It's about some vulnerabilities we found in libarchive and some interesting behaviors of libarchive that you don't want to miss. My favorite part is it only took us 56 seconds to trigger a crash by AFL++.