splitline 👁️🐈⬛
@_splitline_
@D3VC0R3 / CTF with ${cYsTiCk} / 友民党 / Taigi, zh-TW, en-US, es-PY / 🐈⬛
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A bit late, but I just published my blog post on bypassing Ubuntu’s sandbox! Hope you enjoy it! u1f383.github.io/linux/2025/06/…
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++.
Our latest deep dive explores libarchive vulnerabilities under recent Windows 11 updates. 🔍🔓 Check out NiNi's (@terrynini38514) technical write-up for key insights and security implications. Read more here: devco.re/blog/2025/02/1… #VulnerabilityResearch #Cybersecurity
This is just a rumor to make themselves feel better, CTFers doesn't have life and probably all single
🤘Congrats Orange(@orange_8361) and Splitline(@_splitline_) on making it to 2024 Top 10 Web Hacking Techniques! Check out their groundbreaking research: portswigger.net/research/top-1…
I will drop one web challenge there 🐈⬛
Our hackathon for that website Worst.Fit was done successfully 🥰
Our talk at #BHEU is done! Hope you all enjoyed it. 😉 A detailed blog is on the way, but in the meantime, check out the pre-alpha website worst.fit for early access and the slides! Huge thanks to @BlackHatEvents and my awesome co-presenter @_splitline_! 🐈
Cool findings 🐈⬛
Remember CVE-2024-4577, the PHP-CGI RCE bypass? Actually, the Best-Fit 'feature' also impacts non-CJK codepages such as locales in the Americas, Western Europe, Oceania, and more! @_splitline_ and I will share these cool findings at @BlackHatEvents! 🔥 Let's make argument…
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…
I made one harder challenge 🐈⬛ wargame.d3vc0r3.tw
I've prepared 3 easy wargame challenges for HITCON CMT 2024 event, plus my coworker's challenge for a total of 7 challenges. I hope everyone enjoys them🥳
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…
Dreaming back to 2012 👀
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…
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…
🎉 ACSC CTF 2024 has been started! 🚀 Have fun and happy hacking! 🖥️💻🔒 #ACSCCTF2024 #CTF #icc #ic3game
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🚀 ACSC 2024 registration is LIVE! 🚀 Gear up for the cyber showdown on Mar 30-31. Top 15 CTF players could represent Asia in Chile! 🌎 🔗 Register: score.2024.ctf.acsc.asia More details → acsc.asia #ACSC2024 #CyberSecurity #CTF #ACSC2024
🚀 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
Am I the only non-Japanese CTFer still in Japan since SECCON?
Omg no way
CTF Protip: If you successfully hack the challenge you can submit the "flag" to the "scoreboard" for "points".
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