> For the complete documentation index, see [llms.txt](https://hyggehalcyon.gitbook.io/page/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hyggehalcyon.gitbook.io/page/ctfs.md).

# CTFs

- [2025](https://hyggehalcyon.gitbook.io/page/ctfs/2025.md)
- [Starlabs Summer Pwnables](https://hyggehalcyon.gitbook.io/page/ctfs/2025/starlabs-summer-pwnables.md)
- [Alfa Surfing](https://hyggehalcyon.gitbook.io/page/ctfs/2025/alfa-surfing.md)
- [ITSEC Summit](https://hyggehalcyon.gitbook.io/page/ctfs/2025/itsec-summit.md)
- [Cyber Breaker Development Quals](https://hyggehalcyon.gitbook.io/page/ctfs/2025/cyber-breaker-development-quals.md)
- [ARKAVIDIA Quals](https://hyggehalcyon.gitbook.io/page/ctfs/2025/arkavidia-quals.md)
- [TECHOMFEST Quals](https://hyggehalcyon.gitbook.io/page/ctfs/2025/techomfest-quals.md)
- [2024](https://hyggehalcyon.gitbook.io/page/ctfs/2024.md)
- [BackdoorCTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/backdoorctf.md)
- [World Wide CTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/world-wide-ctf.md)
- [TSA Cyber Champion](https://hyggehalcyon.gitbook.io/page/ctfs/2024/tsa-cyber-champion.md)
- [Cyber Jawara International](https://hyggehalcyon.gitbook.io/page/ctfs/2024/cyber-jawara-international.md)
- [National Cyber Week Quals](https://hyggehalcyon.gitbook.io/page/ctfs/2024/national-cyber-week-quals.md)
- [COMPFEST 16 Finals](https://hyggehalcyon.gitbook.io/page/ctfs/2024/compfest-16-finals.md)
- [HackToday Finals](https://hyggehalcyon.gitbook.io/page/ctfs/2024/hacktoday-finals.md)
- [UIUCTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/uiuctf.md)
- [TBTL CTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/tbtl-ctf.md)
- [BSidesSF CTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/bsidessf-ctf.md)
- [UMD  CTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/umd-ctf.md)
- [UMassCTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/umassctf.md): PTRACE
- [b01lers CTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/b01lers-ctf.md)
- [AmateursCTF](https://hyggehalcyon.gitbook.io/page/ctfs/2024/amateursctf.md)
- [UNbreakable International - Team Phase](https://hyggehalcyon.gitbook.io/page/ctfs/2024/unbreakable-international-team-phase.md)
- [2023](https://hyggehalcyon.gitbook.io/page/ctfs/2023.md)
- [HackToday CTF Quals](https://hyggehalcyon.gitbook.io/page/ctfs/2023/hacktoday-ctf-quals.md)
- [Vnote](https://hyggehalcyon.gitbook.io/page/ctfs/2023/hacktoday-ctf-quals/vnote.md): off one byte overflow to stack pivot gaining ret2execve
- [TahuBulat](https://hyggehalcyon.gitbook.io/page/ctfs/2023/hacktoday-ctf-quals/tahubulat.md): overlapping heap chunk to tcache poisoning gaining almost arbitrary write
- [Rangkaian Digital](https://hyggehalcyon.gitbook.io/page/ctfs/2023/hacktoday-ctf-quals/rangkaian-digital.md): integer, long, float and double data type comparison bypass. complex stack pivoting.
- [Tenable CTF](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tenable-ctf.md)
- [Skiddyana Pwnz and the Loom of Fate](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tenable-ctf/skiddyana-pwnz-and-the-loom-of-fate.md): pointer overwrite and ret2win
- [Braggart](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tenable-ctf/braggart.md): Format string exploit through HTTPS request
- [CiGITS](https://hyggehalcyon.gitbook.io/page/ctfs/2023/cigits.md)
- [afafafaf](https://hyggehalcyon.gitbook.io/page/ctfs/2023/cigits/afafafaf.md): UAF tcache poisoning
- [popping around shell](https://hyggehalcyon.gitbook.io/page/ctfs/2023/cigits/popping-around-shell.md): Shellcode with some limitation
- [well\_known](https://hyggehalcyon.gitbook.io/page/ctfs/2023/cigits/well_known.md): Application Logic, Arbitrary Write, GOT Overwrite
- [TJCTF](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tjctf.md)
- [flip out](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tjctf/flip-out.md): simple reading from unchecked index
- [shelly](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tjctf/shelly.md): bypassing restriction of opcodes in shellcode payload
- [groppling-hook](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tjctf/groppling-hook.md): ROP with specific check to RIP
- [formatter](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tjctf/formatter.md): overwriting global variable
- [teenage-game](https://hyggehalcyon.gitbook.io/page/ctfs/2023/tjctf/teenage-game.md)
- [SanDiegoCTF](https://hyggehalcyon.gitbook.io/page/ctfs/2023/sandiegoctf.md)
- [money printer](https://hyggehalcyon.gitbook.io/page/ctfs/2023/sandiegoctf/money-printer.md): Integer overflow and format string vulnerability
- [turtle shell](https://hyggehalcyon.gitbook.io/page/ctfs/2023/sandiegoctf/turtle-shell.md): simple shellcode
- [DeadSec CTF](https://hyggehalcyon.gitbook.io/page/ctfs/2023/deadsec-ctf.md)
- [one punch](https://hyggehalcyon.gitbook.io/page/ctfs/2023/deadsec-ctf/one-punch.md)
- [FindIT CTF Quals](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals.md)
- [Debugging Spiders](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/debugging-spiders.md): ret2win
- [Everything Machine](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/everything-machine.md): buffer overflow
- [Furr(y)verse](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/furr-y-verse.md)
- [Bypass the Py](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/bypass-the-py.md)
- [Joy Sketching in the Matrix](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/joy-sketching-in-the-matrix.md)
- [Detective Handal](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/detective-handal.md)
- [I Like Matrix](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/i-like-matrix.md)
- [CRYptograPI](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/cryptograpi.md)
- [Date Night](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/date-night.md)
- [Web-Find IT](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/web-find-it.md)
- [Mental Health Check](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/mental-health-check.md)
- [NCS Cipher](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/ncs-cipher.md)
- [Discovered](https://hyggehalcyon.gitbook.io/page/ctfs/2023/findit-ctf-quals/discovered.md)