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Writeups

How we solved it, step by step. Grouped by CTF year, newest first.

36 of 36 writeups

2026

2 writeups

2025

17 writeups

blockchain

WWFctf · Solidity Jail 1

Bash Jail? Boring. PyJail? Too Common. Introducing for the first time, Solidity Jail! Make a contract to read the flag!

galaxea17/07/20263 min read
web

WWFctf · Blank Login

Hm, I don't remember, probably something about three databases.

akiidjk17/07/20263 min read
web

Ulisse · Telemetry

Elia has just developed a brand-new website to analyze logs at runtime 🧻. Confident in his security skills, he bet his entire house that you won't fi...

akiidjk17/07/20263 min read
web

Trx · Online Python Editor

If you're tired of fast and good-looking editors, try this. Now with extra crispiness!

akiidjk17/07/20261 min read
web

Srdnlen · Speed

Welcome to Radiator Springs' finest store, where every car enthusiast's dream comes true! But remember, in the world of racing, precision matters—so t...

akiidjk17/07/20262 min read
crypto

Srdnlen · Confusion

Looks like our cryptographers had one too many glasses of mirto! Can you sober up their sloppy AES scheme, or will the confusion keep you spinning?

neovymp17/07/20263 min read
web

Srdnlen · Ben 10

Ben Tennyson's Omnitrix holds a mysterious and powerful form called Materia Grigia — a creature that only those with the sharpest minds can access. It...

akiidjk17/07/20262 min read
crypto

M0lecon teaser · Yet Another OT

Why do people always want to decrypt both messages?

neovymp17/07/20263 min read
crypto

M0lecon beginner · SmallAuth

I am trying to authenticate but I totally forgot the password, I am screwed!!

neovymp17/07/20261 min read
web

M0lecon beginner · ImgPlace

Are you a photographer but have no reputation? Join ImgPlace! Share your photos... and become popular!

akiidjk17/07/20261 min read
web

M0lecon beginner · GoSecureIt

I've found this website under construction, at the moment you can only register, but I think there's something strange in the cookie

akiidjk17/07/20261 min read
hardware

L3akctf · Beneath the Surface

On the surface, this signal is nothing but meaningless noise — a mere whisper of the wind. But dive deeper into this transmission, and a storm begins...

tatore17/07/20261 min read
crypto

K1ndasus · Key in the haystack

I've encrypted my secret message with RSA. Easy stuff, right? Well, I'm not giving you the key outright... I've hidden it in a haystack! Sure, a key i...

neovymp17/07/20262 min read
web

CornCTF · Simple Chat

Simple web application to chat with your friends! Sometimes it does funny things and it's ok like that

akiidjk17/07/20261 min read
cryptoFirst blood

CornCTF · ECRSA

RSA or Elliptic Curves? Why not both?

neovymp17/07/20262 min read
web

CornCTF · Aeronaut

Aeronaut is a gambling game in which you bet on a multiplier. The goal is to get 100.000.000$. Good luck!

akiidjk17/07/20261 min read
pwn

Backdoorctf · Gamble

My friends and I planned a trip to Gokarna and heard about a famous casino with a machine that almost never lets anyone win, only the truly lucky. I’v...

ebreo17/07/20262 min read

2024

17 writeups

crypto

SekaiCTF · Some Trick

Bob and Alice found a futuristic version of opunssl and replaced all their needs for doofy wellmen.

neovymp17/07/20261 min read
ppc

SekaiCTF · Miku vs. Machine

Time limit is 2 seconds for this challenge.

tatore17/07/20263 min read
reverse

SekaiCTF · Crack Me

Developed for SekaiCTF 2022 but never got a chance to release it. Can you log in and claim the flag?

akiidjk17/07/20264 min read
misc

NoobzCTF · WaaS

Writing as a Service!

akiidjk17/07/20262 min read
web

NoobzCTF · File Sharing Portal

Welcome to the file sharing portal! We only support tar files!

akiidjk17/07/20261 min read
web

LitCTF · Kirbytime

Welcome to Kirby's Website.

akiidjk17/07/20261 min read
crypto

IronCTF · Rivest, Shamir, Adleman 2

Little John has done his homework and tried fixing the issue in his script. Can you still find his secret.

neovymp17/07/20261 min read
crypto

IronCTF · Rivest, Shamir, Adleman 1

Little John came across an article on RSA encryption. Intrigued but only partially understanding it, he decided to write a script and started using it...

neovymp17/07/20261 min read
web

IronCTF · Loan App

One of the first web challenges solved in ctf, not very complex (at least the unintended solution)

akiidjk17/07/20261 min read
web

IronCTF · b64SiteViewer

This is one of the challenges added later, but despite that it wasn't very complex, in fact the most complex part wasn't even the web part, but despit...

akiidjk17/07/20262 min read
web

IronCTF · MovieReviewApp

Last web challenge done in the ctf (unfortunately) also one of the fastest to do if you know the right tools

akiidjk17/07/20261 min read
web

IdekCTF · Hello

Just to warm you up for the next Fight :"D

akiidjk17/07/20264 min read
web

Cyberspace · ZipZone

I was tired of trying to find a good file server for zip files, so I made my own! It's still a work in progress, but I think it's pretty good so far.

akiidjk17/07/20261 min read
web

Cyberspace · Trendz

The latest trendz is all about Go and HTMX, but what could possibly go wrong? A secret post has been hidden deep within the application. Your mission...

akiidjk17/07/20266 min read
crypto

Cyberspace · Trendy Windy Trigonity

have you seen Tan challenge before? see maple version pi documentation!

neovymp17/07/20261 min read
reverse

Cyberspace · Snake

Can you slither to the win?

akiidjk17/07/20262 min read
web

Cyberspace · Feature Unlocked

The world's coolest app has a brand new feature! Too bad it's not released until after the CTF..

akiidjk17/07/20261 min read
ByteTheCookies

Hello, we are ByteTheCookies (BTC), a passionate CTF team formed by students from the University of Salerno after participating in the CyberChallenge 2024.

CTFtime #309819

We play

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