imlonghao / pwndocker

A docker environment for pwn in ctf

Pwndocker

A docker environment for pwn in ctf based on phusion/baseimage:master-amd64, which is a modified ubuntu 18.04 baseimage for docker

Usage

docker run -d \
	--rm \
	-h ${ctf_name} \
	--name ${ctf_name} \
	-v $(pwd)/${ctf_name}:/ctf/work \
	-p 23946:23946 \
	--cap-add=SYS_PTRACE \
	skysider/pwndocker

docker exec -it ${ctf_name} /bin/bash

included software

• pwntools —— CTF framework and exploit development library
• pwndbg —— a GDB plug-in that makes debugging with GDB suck less, with a focus on features needed by low-level software developers, hardware hackers, reverse-engineers and exploit developers
• pwngdb —— gdb for pwn
• ROPgadget —— facilitate ROP exploitation tool
• roputils —— A Return-oriented Programming toolkit
• one_gadget —— A searching one-gadget of execve('/bin/sh', NULL, NULL) tool for amd64 and i386
• angr —— A platform-agnostic binary analysis framework
• radare2 —— A rewrite from scratch of radare in order to provide a set of libraries and tools to work with binary files
• seccomp-tools —— Provide powerful tools for seccomp analysis
• linux_server[64] —— IDA 7.0 debug server for linux
• tmux —— a terminal multiplexer
• ltrace —— trace library function call
• strace —— trace system call

included glibc

Default compiled glibc path is /glibc.

• 2.19 —— ubuntu 12.04 default libc version
• 2.23 —— ubuntu 16.04 default libc version
• 2.24 —— introduce vtable check in file struct
• 2.27 —— pwndocker default glibc version
• 2.28 —— new libc version
• 2.29 —— latest libc version

How to run in custom libc version?

cp /glibc/2.27/64/lib/ld-2.27.so /tmp/ld-2.27.so
patchelf --set-interpreter /tmp/ld-2.27.so ./test
LD_PRELOAD=./libc.so.6 ./test

or

from pwn import *
p = process(["/path/to/ld.so", "./test"], env={"LD_PRELOAD":"/path/to/libc.so.6"})