~/~/ilupii's Cybersecurity Notes

~/ilupii

CTF Player & Full-Stack Developer
bash — kentang@wsl2

kentang@wsl2:~$  cat about.txt

Hi! I'm ilupii, a CTF Player and software developer. I'm currently a student at Bachharuddin Jusuf Habibie Institute of Technology, majoring in information system.

In my free time, I actively participate in Capture The Flag (CTF) competitions, where I continuously sharpen my problem-solving skills and deepen my understanding of real-world security challenges. Laravel, Vue.js, Nuxt, and Tailwind CSS ecosystem.


kentang@wsl2:~$  ls ./writeups/ | head

Latest Solves

combined web forensic

C2C CTF Quals 2026

striving to be among the top 100

21 Apr 2026 Country To Country CTF 2026 READ
pwn one byte read

Understanding One-Byte Arbitrary Writes

1 byte aja udah cukup buat mengambil alih kontrol program, jika ditulis di lokasi yang tepat.

20 Apr 2026 Advent Of Ctf 2025 READ
combined Blockchain PWN

Compfest 17 Quals

I played for the team lastseenin2026 and finished in 20th place.

20 Apr 2026 Compfest 17 Quals READ
Web SSTI RCE

Java Spring SSTI Bypass — Google CTF 2025

RCE melalui Server-Side Template Injection pada Spring Framework dengan bypass filter berbasis regex.

21 Jun 2025 Google CTF 2025 READ