Angr Workshop - CyberExcellence

This repository contains all necessery material for an Angr introduction workshop

A Makefile is included that performs an automated build for installation.

A list of users is passed in via the USERS environment variable, which will then build the binaries for each user listed.

Setup

Install Ghidra

To install an official pre-built multi-platform Ghidra release:

Install JDK 17 64-bit
Download a Ghidra release file
- NOTE: The official multi-platform release file is named ghidra_<version>_<release>_<date>.zip which can be found under the "Assets" drop-down. Downloading either of the files named "Source Code" is not correct for this step.
Extract the Ghidra release file
Launch Ghidra: ./ghidraRun (or ghidraRun.bat for Windows)

Or for the nerdy nerds

Every thing we do with Ghidra is identifying adresses. So if you are confortable with assembly and that you like to live in your good old terminal then you can just use objdump.

I advise you

objdump -D <binary_path> --disassembler-color=color | less

or to look for symbols (strings etc)

objdump -s <binary_path> | less

Building the exercices

The make command will build all the necessary binaries and put all the exercices template in obj/<username>/angr

make USERS='<username>' local

You can then go to the target directory (obj/<username>/angr), you'll find the built binaries as well as the python files to play the levels

Troubleshooting

While compiling using "make USERS=<user> local" you might have the following error:
fatal error: bits/libc-header-start.h: No such file or directory

One easy fix is to install the missing headers and libraries using:
sudo apt-get install gcc-multilib

Solutions

The solutions of the exercices can be found in solutions.zip with password: 4ngr2024.

NOTE: the addresses used in the solutions could differ from those compiled on your computer.