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I took the opportunity to learn Prometheus and Grafana for the event so can we all agree to keep my graphs nice and smooth for the duration of the #CTF event? We have about a day left until the feast starts, register now at play.potluckctf.com!

Less than an hour until the event starts and with almost 500(!) teams registered it will be one hell of a #CTF party! Register and solve the challenges at play.potluckctf.com!

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-cha…

Good Game! →→→ #37c3 Potluck CTF TOP 1 🥇💪 Kudos to Calle Svensson for making the CTF happen! ctftime.org/event/2199

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 Dragon Sector, organizers and Flat Network Society for their great performances! See you next time!

Huge love to Calle Svensson for organizing the PotluckCTF at #37c7, it was a fantastic experience and we really enjoyed playing. 💚

The CTF was really cool, thanks PotluckCTF and Calle Svensson 🔥. I've just published a writeup on my blog for those interested: rayanle.cat/potluckctf-202…

For PotluckCTF this year, I create a Linux kernel-themed pwnable challenge called auxv: github.com/dfyz/ctf-write…. 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! :)

The scoreboard and challenge info have now been archived at 2023.potluckctf.com. Don't forget that we also have a write-up competition running until Jan 5th. See the rules at potluckctf.com/#prizes Challenges will be open-sources in the next few days. Stay tuned!

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!

Our ninja Mastho 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 blasty for creating the challenge): synacktiv.com/publications/l…

This low effort meme has been brought to you by PotluckCTF.

I have now open-sourced all the infrastructure and challenges from the event which you can find at github.com/zetatwo/potluc…. I want to again give a huge shoutout to all the challenge authors which made this #CTF a great experience for everyone involved!

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/how… github.com/shellphish/how…

After some shipping and other logistics delays I'm now proud to present the trophies for the 37C3 Potluck CTF. I will be handing these out to the winning teams. Congratulations again to Dragon Sector, organizers and Flat Network Society! See you next time!

The last trophy has been delivered and with that the event is truly and fully over. We will (probably) be back at the end of this year and planning will start on the CTF Discord (discord.gg/ArjWjvctft) this summer so make sure to join there if you want to provide input. Laters!

Here we can see Anthropic'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