# Challenges

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Shared Medium

Leftovers

The Terminal43 locker lets you scribble a note on its scratch pad or try the key. The locker opens only when its key ...

150 points 2 solves

Web Shared Medium

Blueprint

The Terminal43 profile editor lets you update your details. It is not selective about which details.

150 points 2 solves

Crypto Computer: You will analyse downloaded files, which usually needs a computer. Medium

Overheard

Two messages went out encrypted the same way. You caught the first one in the clear and both ciphertexts. Read the se...

150 points 2 solves

Hardware/IoT Computer: You will analyse downloaded files, which usually needs a computer. Medium

Backlight

We probed the pins between a microcontroller and a small character display while it printed a status line. It talks o...

150 points 3 solves

Mobile Computer: Solving this needs desktop tools such as a disassembler, debugger or APK decompiler. Medium

Cabinet

Cabinet keeps your entries on the device. We recovered a build with its data still bundled inside. Have a look at wha...

150 points 2 solves

Hardware/IoT Computer: You will analyse downloaded files, which usually needs a computer. Medium

AVR Fuse

A programmer log from pulling the configuration off an AVR microcontroller. It lists the fuse and lock bytes and dump...

150 points 2 solves

Forensics Computer: You will analyse downloaded files, which usually needs a computer. Medium

Bootstrap

A device fetched its startup configuration from a provisioning server on the network. We captured the whole transfer....

150 points 2 solves

Crypto Computer: You will analyse downloaded files, which usually needs a computer. Easy

Fingerprint

All you get is the SHA-256 fingerprint of a secret word. Recover the word and wrap it as T43CTF{...}. Source is provided.

75 points 8 solves

Hardware/IoT Computer: You will analyse downloaded files, which usually needs a computer. Easy

Paper Tape

A scan of a strip of punched paper tape, one character per row. The little holes down the middle are just the feed tr...

100 points 7 solves

Web Shared Easy

Sponsored by InvataCyber

The Panel

Portalul InvataCyber.ro este în lockdown. Modulul de autentificare se presupune ca a fost dezactivat, iar pagina publ...

100 points 6 solves

Web Shared Easy

Sponsored by InvataCyber

The Blog 2

Aceeași redacție, altă problemă. După migrarea de pe vechiul CMS, SSO-ul nu a mai fost configurat pe instanța asta, a...

100 points 1 solves

Web Shared Easy

Sponsored by InvataCyber

The Blog 1

The Blog este un blog clasic: câteva articole publicate și un formular de contact deschis oricui. Redacția are un edi...

100 points 1 solves

Crypto Computer: You will analyse downloaded files, which usually needs a computer. Easy

Sponsored by InvataCyber

Operațiunea HashXOR

Pe o stație compromisă au fost găsite două fișiere. Descarcă-le din atașamentele provocării. parole.txt conține 100 d...

100 points 8 solves

Crypto Computer: This challenge connects with nc or SSH, which needs a terminal. Medium

Echo Chamber

A service encrypts AES-ECB( your_input || secret ) and hands the ciphertext back to you. ECB encrypts every 16-byte b...

100 points 2 solves

Misc Computer: You will analyse downloaded files, which usually needs a computer. Medium

Smart deal

Smart deal or smart dill?

150 points 4 solves

Misc Computer: You will analyse downloaded files, which usually needs a computer. Medium

Obsidian

You've found the portal to the Nether and saved the coordinates on the map. Take your pickaxe, dig for the last piece...

150 points 5 solves

Misc Computer: You will analyse downloaded files, which usually needs a computer. Easy

Wires

zTXt

50 points 13 solves

Steganography Computer: You will analyse downloaded files, which usually needs a computer. Easy

The Odyssey Compass

Follow the compass to the flag

100 points 9 solves

Steganography Computer: You will analyse downloaded files, which usually needs a computer. Easy

Shaker

Shake that song until the flag falls out. Original sound: https://www.youtube.com/watch?v=1lcc21RQx_A

100 points 4 solves

Steganography Computer: You will analyse downloaded files, which usually needs a computer. Easy

Needle

Have you seen the needle?

100 points 5 solves