WebServer (x86-64 assembly) — pwn.college web server assembly challenge

A tiny educational web server written in x86-64 Linux assembly (Intel syntax).
Created as a learning/exercise piece for the pwn.college web server assembly challenge.

Repository layout

├── build.sh
├── src/
│ └── webserver.s
└── bin/
│ └── obj/

(Note that bin/ and bin/obj will automatically be created when running the build.sh script)

What it does

• Implements a minimal TCP server that accept()s connections and forks for each connection.
• Performs a very small HTTP parsing to detect GET vs POST.
  • GET /path → opens the file at /path and returns its contents preceded by HTTP/1.0 200 OK\r\n\r\n.
  • POST /path → extracts the HTTP message body and writes it into the file at /path, then responds 200 OK.
• Intended for hands-on learning: syscalls, sockets, forking, manual HTTP parsing, buffer management.

Important: This project is intentionally minimal and insecure, I built it out of curiosity about how things really work behind the curtains.

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Building

This repo contains a simple build.sh. It expects as/ld (GNU binutils) on a Linux x86_64 host.

chmod +x build.sh
./build.sh