ctfpwn-env

introduction

A project that uses containers to manage linux pwn environments.

docker images

Store dockerfile for some versions of ubuntu. Build and push a docker image using GitHub action.

All image can be found here: beswing/swpwn

provided tools

• pwndbg
• pwntools
• keystone assmebler
• capstone disassembler
• glibc source and debug version glibc(so we can debug libc with source)
• Ropper
• ROPGadgets
• one_gadget
• seccomp-tools ...

pull

sample：

docker pull beswing/swpwn:22.04

swpwn

A tool for managing glibc pwn environments using containers. This is a simplified version of ancypwn

It uses docker to manage the tools you might need, so you have separete environment, and you do all the debugging with the shared folder.

install

python3 -m pip install swpwn

usage

Contains only the container management parts.

• run
  run a pwn environments using containers.
  usage: swpwn run --ubuntu 20.04 --priv --dir .
• list
  list all runing container.
  usage: swpwn list
• attach
  attach a running containers.
  usage: swpwn attach [container-name]
• end
  stop and delete a running container.
  usage: swpwn end [container-name]

MSL (MacOS subsystem for Linux power by Docker)

Inspired by WSL, running a persistent container on MacOS via Docker

usage

$ msl --help
usage: msl [-h] [--ubuntu UBUNTU] [--name NAME] [--priv] [--dir DIRECTORY] [--run RUN [RUN ...]] [--commit] [--loglevel LOGLEVEL]

MacOS subsystem for Linux power by Docker

optional arguments:
  -h, --help           show this help message and exit
  --ubuntu UBUNTU      choice ubuntu version
  --name NAME          container name
  --priv               privileged boot , so you can use something like kvm
  --dir DIRECTORY      shared directory to be mounted at /workhub
  --run RUN [RUN ...]  run command
  --commit             commit container to image
  --loglevel LOGLEVEL  log level

Run a shell in the current directory

# swing @ WorkMac in ~/Desktop/ctfpwn-env on git:main x [0:52:28]
$ msl
[check_container() - msl:93 ] Container status: running
[main() - msl:139 ] Running command: bash -c "cd '/workhub/Desktop/ctfpwn-env' ; zsh"

__________               .__  .__  _____
\______   \__  _  ______ |  | |__|/ ____\____
 |     ___/\ \/ \/ /    \|  | |  \   __\/ __ \
 |    |     \     /   |  \  |_|  ||  | \  ___/
 |____|      \/\_/|___|  /____/__||__|  \___  >
                       \/                   \/
                                 no pwn no life

docker-desktop# pwd
/workhub/Desktop/ctfpwn-env
docker-desktop#

Execute a command in the current directory, for example binwalk

# swing @ swingdeiMac in ~/Downloads/_a4bdea30bfcb8fbe6b1c159bf0a996d7_EG_RGOS11.9_6_B13P1T2,Release_09132119_.bin.extracted [0:53:39]
$ msl --run binwalk 960.gz
[check_container() - msl:93 ] Container status: running
[main() - msl:139 ] Running command: bash -c "cd '/workhub/Downloads/_a4bdea30bfcb8fbe6b1c159bf0a996d7_EG_RGOS11.9_6_B13P1T2,Release_09132119_.bin.extracted' ; binwalk 960.gz"

__________               .__  .__  _____
\______   \__  _  ______ |  | |__|/ ____\____
 |     ___/\ \/ \/ /    \|  | |  \   __\/ __ \
 |    |     \     /   |  \  |_|  ||  | \  ___/
 |____|      \/\_/|___|  /____/__||__|  \___  >
                       \/                   \/
                                 no pwn no life


DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
0             0x0             gzip compressed data, maximum compression, from Unix, last modified: 1970-01-01 00:00:00 (null date)
8357269       0x7F8595        Zip archive data, at least v2.0 to extract, compressed size: 1365, uncompressed size: 2795, name: keepon.html
8358675       0x7F8B13        Zip archive data, at least v2.0 to extract, compressed size: 3489, uncompressed size: 9623, name: login.html
8362204       0x7F98DC        Zip archive data, at least v2.0 to extract, compressed size: 6865, uncompressed size: 7919, name: login_image.jpg
8430923       0x80A54B        Zip archive data, at least v2.0 to extract, compressed size: 20302, uncompressed size: 20373, name: style/logo.png
8503960       0x81C298        Zip archive data, at least v2.0 to extract, compressed size: 4258, uncompressed size: 15874, name: online_mobile.htm
8508265       0x81D369        Zip archive data, at least v2.0 to extract, compressed size: 2733, uncompressed size: 6624, name: offline.htm
8511039       0x81DE3F        Zip archive data, at least v2.0 to extract, compressed size: 4524, uncompressed size: 15206, name: online.htm