1. pwn setup

My setup for solving pwn challenges in CTFs consists of a docker image that is handled using some aliases that are described further down.

- Dockerfile
- aliases.txt
- aliases_fish.txt

docker build . -t ctf:ubuntu20.10

1.1. Dockerfile

FROM ubuntu:20.10
ENV DEBIAN_FRONTEND=noninteractive
RUN dpkg --add-architecture i386
RUN apt update -y
RUN apt upgrade -y
RUN apt install -y build-essential cmake curl dnsutils gcc gcc-multilib gdb gdb-multiarch git golang jq libc6:i386 libdb-dev libffi-dev libncurses5:i386 libpcre3-dev libssl-dev libstdc++6:i386 libxaw7-dev libxt-dev ltrace make netcat net-tools pkg-config procps python python3 python3-dev python3-pip radare2 rubygems sqlmap strace tmux upx vim wget
RUN pip install capstone requests r2pipe huepy
RUN pip3 install pwntools keystone-engine unicorn capstone ropper angr
RUN r2pm update
RUN mkdir tools && cd tools && \
git clone https://github.com/JonathanSalwan/ROPgadget && \
git clone https://github.com/radare/radare2 && cd radare2 && sys/install.sh && \
cd .. && git clone https://github.com/pwndbg/pwndbg && cd pwndbg && ./setup.sh

1.2. bash aliases

These are the bash alieses you can use to create the containers.

# aliases.txt
alias pmk='function _dockermk(){docker run -v "$(pwd):/pwn" \
--cap-add=SYS_PTRACE --security-opt seccomp=unconfined -d --name $1 -i \
alias pcd='function _dockercd(){docker exec -it --workdir /pwn $1 bash;};_dockercd'
alias prm='function _dockerrm(){docker stop $1;};_dockerrm'
alias pls='function _dockerls(){docker ps -a -f ancestor=ctf:ubuntu20.10 \
--format "{{.Names}}";};_dockerls'

1.3. fish functions

These are the fish aliases you can use to create the containers.

# aliases_fish.txt
function pmk --argument name
    docker run --rm -v (pwd)':/pwn' --cap-add=SYS_PTRACE --security-opt seccomp=unconfined -d --name $name -i ctf:ubuntu20.10
function pcd --argument name
    docker exec -it -e TERM=xterm-256color --workdir /pwn $name bash
function prm --argument name
    docker stop $name
function pls
    docker ps -a -f ancestor=ctf:ubuntu20.10 --format '{{.Names}}'

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