Potluck CTF - A CTF competition where the participants bring the challenges: https://xitter.cf/t.co/yVjd8PvsfB
Zürich, Switzerland
Joined November 2023
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PotluckCTF retweeted
Here we can see @AnthropicAI's claude (Sonnet 3.7 model) talking to IDA pro to reverse engineer a CTF task I made for @PotluckCTF, it does pretty well! It manages to get a grasp of the entire custom VM instruction set, file format, syscall interface etc.🤓
The MCP server is based on @JH_Pointer's work, thanks! (I have a fork with some additions on my Github for those who care). The IDA MCP integration only has a few basic primitives right now. I think the next big useful one would be adding the ability to re-type stuff. Unmute the video if you want to hear a banger by @meganekomusic btw 🎵
PotluckCTF retweeted
So the challenge i wrote for @PotluckCTF introduced a new heap house (which I shamelessly dubbed "house of water" after my two teams), and a general technique I dubbed "safe link double protect".
Both are now available here:
github.com/shellphish/how2he…
github.com/shellphish/how2he…
Made a fun little heap challenge for #37C3 @PotluckCTF called Tamagoyaki. It features a fun way to bypass protect_ptr without a leak I discovered while exploiting a bug.
It only got one solve during the CTF, so made a writeup: github.com/UDPctf/CTF-challe…
PotluckCTF retweeted
Our ninja @masthoon solved a tough challenge during @PotluckCTF with an ingenious approach: he built a decompiler for a custom ISA by lifting instructions to Binary Ninja IL. Read the "Pot of Gold" write-up (kudos to @bl4sty for creating the challenge): synacktiv.com/publications/l…
PotluckCTF retweeted
I contributed a task to this year's @PotluckCTF that contains an emulator for a custom ISA. one of the players actually implemented a decompiler for it by lifting to binja's IL. mind you: this is a 24h long CTF! very neat to see current tooling makes things like this feasible!
PotluckCTF retweeted
For @PotluckCTF this year, I create a Linux kernel-themed pwnable challenge called auxv: github.com/dfyz/ctf-writeups…. The CTF infrastructure is already down, but the challenge is very easy to run locally, so give it a try if you like exploring obscure corners of the Linux kernel! :)
PotluckCTF retweeted
Good Game! →→→ #37c3 Potluck CTF TOP 1 🥇💪
Kudos to @ZetaTwo for making the CTF happen!
ctftime.org/event/2199
PotluckCTF retweeted
The CTF was really cool, thanks @PotluckCTF and @ZetaTwo 🔥.
I've just published a writeup on my blog for those interested:
rayanle.cat/potluckctf-2023-…
That's a wrap! Thanks for everyone who participated in the community #CTF feast of the year! Thanks to all the authors and well played to all participants.
Congratulations to @DragonSectorCTF, @0rganizers and @FlatNetworkOrg for their great performances!
See you next time!
ALT Screenshot of the 37C3 Potluck CTF final scoreboard showing Dragon Sector, organizers and The Flat Network Society in the top three.
PotluckCTF retweeted
Made a fun little heap challenge for #37C3 @PotluckCTF called Tamagoyaki. It features a fun way to bypass protect_ptr without a leak I discovered while exploiting a bug.
It only got one solve during the CTF, so made a writeup: github.com/UDPctf/CTF-challe…
PotluckCTF retweeted
Huge love to @ZetaTwo for organizing the @PotluckCTF at #37c7, it was a fantastic experience and we really enjoyed playing. 💚
