Wood13nqxy3n's Blog
This is Wood13nqxy3n's personal blog. You can find the solution/writeups of some Capture The Flag (CTF) and some researchs about security challenge on this site
W3W3 - UTCTF 2026 write up
Challenge Description The three words I would use to describe this location are…
W3W2 - UTCTF 2026 write up
Challenge Description The three words I would use to describe this location are…
Small Blind - UTCTF 2026 write up
Challenge Description Come play some poker! You’ve got 500 chips and a shot to double up. The flag’s behind a win condition, but a good poker player knows there’s always...
Rude Guard - UTCTF 2026 write up
Challenge Description There’s a guard that’s protecting the flag! How do I sneak past him?
Jail break - UTCTF 2026 write up
Challenge Description We’ve built the world’s most secure Python sandbox. Nothing can escape. Probably. Hopefully. Run it locally: python3 jail.py
Insanity Check - UTCTF 2026 write up
Challenge Description After a gap year, the sequel to “Insanity Check: Redux” and “Insanity Check: Reimagined” is finally here!
Hour of joy - UTCTF 2026 write up
Challenge Description This program is very friendly. It just wants to say hello. Nothing suspicious going on here at all. Download the binary and run it locally.
Double Check - UTCTF 2026 write up
Challenge Description We’re planning on deploying some new static sites for our officers. We’ve cloned a template from Hugo’s Static Site Generator (SSG). Can you make sure that our website...
Breadcrumbs - UTCTF 2026 write up
Challenge Description Every trail has a beginning. This one starts here: https://gist.github.com/garvk07/3f9c505068c011e0fd6abd9ddf56aecb
Vernichtet - Dreamhack Wargame Write up
Problem Link: https://dreamhack.io/wargame/challenges/2343
Stack Cache - picoCTF Write Up
Challenge Information The problem gives us a binary and its source code. Try open the vuln.c file, we can figure out the flow of the binary: ```c #include #include #include...
Startfield Relay - UniVsThreats26 Quals Writeup
Challenge Description A recovered spacecraft utility binary is believed to validate a multi-part unlock phrase. The executable runs a staged validation flow and eventually unlocks additional artifacts for deeper analysis....
What you have - 0xFUN CTF Write Up
Problem link: https://ctf.0xfun.org/challenges#Chip8%20Emulator-70 Category: Pwn Points: 100 Level: Easy
Fridge - 0xFUN CTF Write Up
Problem link: https://ctf.0xfun.org/challenges#Chip8%20Emulator-70 Category: Pwn Points: 100 Level: Easy
Chip8 Emulator - 0xFUN CTF Write Up
Problem link: https://ctf.0xfun.org/challenges#Chip8%20Emulator-70 Category: Reverse Engineering Points: 250 Level: Medium
Cider Vault - BITSCTF Write Up
OTP “The Storybook Workshop keeps magical story cards in a fragile old vault. Caretakers can create cards, write words, read chapters, merge pages, and ring the moon bell.” Category: Pwn...
Orbital Relay - BITSCTF Write Up
Category: Pwn Author: Woody Nguyen
GCC - BITSCTF Write Up
Category: Reverse Engineering Author: Woody Nguyen
El Diablo - BITSCTF Write Up
Challenge Info
PascalCTF Write Up
Author: w00di3nqxy3n - team UIT.k0dunqtool
Regularity - Hack The Box CTF Try Out Writeup
Thông tin challenge
Tunnel Madness - Hack The Box CTF Try Out Writeup
Information Category: RE Level: Medium Source: HTB
Loot Stash - Hack The Box CTF Try Out Writeup
Information Category: Reverse Engineering Level: Easy Source: HTB
Flag Casino - Hack The Box CTF Try Out Writeup
Information Category: Reverse Engineering Level: Easy From HTB
Don't Panic - Hack The Box CTF Try Out Writeup
Information Category: Reverse Engineering Level: Easy Source: HTB
WannaWeekly - picoMini Write Up
Crack the Power Information Category: Cryptography Points: 200 Level: Mediun Description We received an encrypted message. The modulus is built from primes large enough that factoring them isn’t an option,...
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