jchene/42-over-ride

Over Ride is a CTF like challenge about exploiting ELF32 & ELF64 binaries on x86_64 architecture

Override - Exploiting ELF-32/64 binaries on x86_64 architecture

This project consists of multiple levels, each representing a unique challenge. The goal is to exploit vulnerabilities in each level to gain access to the next one.

Structure

Each level in the project has the following structure:

• flag: A file containing the password for the next level.
• Ressources/: A directory containing all resources needed to solve the challenge.
• README.md: A file explaining how to solve the challenge for the current level.
• source: A human readable source code version of the binary for the current level.

Levels

Here is a list of the topics covered by each level:

• Level 00 - REVERSE 1 - PLAIN PASSWORD
• Level 01 - BUFFER OVERFLOW 1 - SHELLCODE
• Level 02 - FORMAT STRING 1 - READ MEMORY
• Level 03 - REVERSE 2 - ENCRYPTED PASSWORD
• Level 04 - BUFFER OVERFLOW 2 - SYSCALL BAN
• Level 05 - FORMAT STRING 2 - PLT OVERRIDE
• Level 06 - REVERSE 3 - ENCRYPTED STRING
• Level 07 - INT OVERFLOW - NO BOUNDARIES
• Level 08 - REVERSE 4 - RELATIVE PATH
• Level 09 - BUFFER OVERFLOW 3 - EXTRA BYTE