stdnoerr @stdnoerr
Tech enthusiast | pwner | CTFs with @ARESxCyber stdnoerr.blog Area 51 Joined June 2020-
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@Steph3nSims AI is still not great at xdev and often misjudges when determining exploitability of bugs 🤷🏻♀️
I will be in Riyadh for the BlackHat MEA CTF finals. If you're there as well, ping me. I would like to chat with CTFers, or anyone interested in cybersecurity, in person. Exchanging ideas is always fun
Learning how to exploit DirtyPipe vulnerability in Linux kernel (@0xnull007 and @stdnoerr) 0xnull007.github.io/posts/dirtypip… stdnoerr.blog/blog/DirtyPipe… #infosec #Linux
@josef_korbel @0x_shaq Hello josef! How have you been?!!
@0x_shaq Yeah man. You have left CTFs for a while but those were the days. Full on action. I actually liked a lot of your tweets since you OS dev brainfuck journey lol Lets catch up sometime
@h0mbre_ I don't know if someone mentioned this or not but this blog by @benhawkes addresses this problem by comparing the vulnerability with other similar vulnerabilities and proving them to be members of an "equivalence" class. blog.isosceles.com/exploit-equiva…
played BlackHat 2024 Qualifiers with AirOverflow. Didn't get much time but managed to solve one challenge. Here's the writeup for the one I solved. P.S. I'm in Riyadh for the Finals. If you're there as well, feel free to hit me up stdnoerr.github.io/writeup/2023/1… #BHMEA24
Finally figured out my approach and I'm already thinking of a new, hopefully better, one.
Today I opened the poc I was trying to write and I couldn't understand what I was trying to attempt🫠, got rusty on Netfilter internals and never documented the manual steps of debugging (was using ftrace to tame race condition). Lesson learnt: ALWAYS document and take notes 2/2
I was trying to write an exploit for CVE-2023-32233 last summer. It was my first exposure to the netfilter subsystem and race conditions. Had to give up when university started. I thought I would continue to try in my free time. Never did. 1/2
Checkout my teammate's writeup. These were some really good challenges.
Played #corctf last weekend with @ARESxCTF. Here is my writeup for zeroday, kcipher and smm-diary. On kcipher and smm-diary I worked together with my teammate @stdnoerr :). blog.libh0ps.so/2023/08/02/cor…
corCTF 2023 has ended🥳- thanks to all the players and our wonderful sponsors! We hope everyone had a great time! Congrats to the top 5 teams: 1. @Water_Paddler 2. @CyberTeamItaly 3. cat🇰🇷 4. @0rganizers 5. @r3kapig See you all next year!
@tourpran @theXSSrat @justk1R4 I am delighted ❤️
CVE-2022-22629: From WebKit Patch Diffing to PoC github.com/parsdefense/CV…
@mistymntncop I need to read it again ig. Sorry if It turns out to be nothing
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