Train. Hack. Compete. — The dojo for ethical hackers.
Welcome to CTFdojo. Type help to get started, or try a category: web, crypto, pwn...
A cybersecurity community where ethical hackers sharpen their skills through CTF challenges, writeups, and live competitions. Learn by doing, one flag at a time.
Web application flaws: injections, access control, cookie/session manipulation.
CryptoBreak or exploit poorly implemented ciphers — Caesar, XOR, RSA, Vigenère...
ForensicsAnalyze files, disk images, and network captures to uncover hidden evidence.
Rev EngRead and understand compiled or obfuscated code to figure out its hidden behavior.
PwnBinary exploitation: buffer overflows, memory corruption, execution control.
OSINTInvestigation from public sources (social media, metadata, search engines).
Detect and extract a ZIP file hidden inside a PNG image with binwalk. An introduction to steganography.
Manipulating HTTP cookies to enumerate hidden values. Technique: IDOR via a sequential cookie.
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