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All 🌐 Web 💥 Pwn 🔐 Crypto 🔍 Forensics ⚙️ Reversing 🎯 Misc
Misc
150 XP

Black Box

★★★☆☆ Moderate

A mysterious scoring interface accepts candidate strings and returns a confidence value. Something about the way it...

Misc Scripting Analysis
Web
150 XP

Second Life

★★★☆☆ Moderate

SecureNotes is an enterprise note-keeping application. User sessions are managed through cookies. Something about how...

Web Server-Side PHP
Web
200 XP

Photo Finish

★★★★☆ Hard

HackShop is an exclusive merch store with one item you really want: the flag. It costs $100, but your coupon is only...

Web Server-Side API
Pwn
150 XP

Fence Post

★★★☆☆ Moderate

A secure vault application for authorized personnel. The developer wrote a custom input function — surely that's more...

PWN Linux Binary Exploitation
Web
100 XP

Health Check

★★☆☆☆ Easy

A network diagnostic tool lets you check if hosts are reachable. The developer added some input filtering, but is it...

Web Server-Side Linux
Web
150 XP

Greeting Card

★★★☆☆ Moderate

A greeting card generator lets you create personalized messages. But what if the application takes your input a little...

Web Server-Side Python
Web
100 XP

Trust Issues

★★☆☆☆ Easy

A secure authentication portal protects its admin panel with token-based access control. Log in as a guest and find a...

Web Authentication Tokens
Pwn
150 XP

Talk Back

★★★☆☆ Moderate

A debug echo service echoes back whatever you send. But it's echoing more than it should... Your mission: Make the...

PWN Linux Binary Exploitation
Pwn
150 XP

Buffer Runner

★★★☆☆ Moderate

A data processing utility from 2005 was recently discovered still running in production. The developers claim it's...

PWN Linux Binary Exploitation