Congratulations to all participants who competed in the Tower of Hanoi (ToH) CTF 2025! Whether you joined us during the event or you're just discovering these challenges now, we welcome you to the first edition of the ToH CTF.
This repository contains detailed writeups for various challenges. Each category
has its own folder. Inside each folder, challenge writeups are organized into
their own folder, following the naming convention <category>-<challenge-name>.
Feel free to explore the solutions if you're stuck, or better yet, give the challenges a shot yourself before peeking at the answers. Happy hacking!
Main infra sysadmin: @danmaam. Additional thanks for infra deployment: @Law, @Frank01001.
| Category | Title | Author(s) | Solves |
|---|---|---|---|
| Crypyo | RSA Recycle | Alessandro Barenghi | 117 |
| Crypyo | osaka | @genni | 3 |
| Crypyo | Drunken Sailor | @r98inver | 1 |
| Misc | Look At The Time! | @Frank01001 | 7 |
| Misc | The Hidden Killer | @LorenzoB, @MarcoBalo | 1 |
| Misc | Unintended Behavior | @Io_no | 1 |
| Misc | Intended Behaviour | @Io_no | 0 |
| Pwn | Free Provola | @Carixo | 15 |
| Pwn | Milk Processor™ | @Carixo | 2 |
| Pwn | CAC | @Carixo | 1 |
| Pwn | Forsaken Tower (+ bonus infra writeup) | @Frank01001 | 1 |
| Pwn | kRWX | @Prosti | 0 |
| Pwn | v9 | @Chino | 0 |
| Rev | pickle_funny | @zom | 64 |
| Rev | Big Embedded System | Federico Terraneo | 23 |
| Rev | Tiny Embedded System | Federico Terraneo | 6 |
| Rev | Retro Mania | @Frank01001 | 6 |
| Rev | provolang | @MrIndeciso | 1 |
| Rev | PPC64LEL | @mebeim | 0 |
| Rev | Small Embedded System | Federico Terraneo | 0 |
| Rev | hardware-assisted-pdf | @MrIndeciso | 0 |
| Web | ZeroDrive | @lucamolteni | 119 |
| Web | rusty-rest-shop | @Dema | 88 |
| Web | ToH Wedding | @Ricy | 17 |
| Web | toh-synth | @padawan | 6 |
| Web | Completely Dangerous | @Ricy | 3 |
| Web | ZeroDrive - Revenge | @lucamolteni | 0 |