PwnSandboxForCTF - AWD模式下CTF挑战的另一个沙箱

项目说明

PwnSandboxForCTF

This is a ptrace sandbox. ~~(It was a chroot sandbox)~~

It will send SIG_KILL under certain circumstances:

* Child process attempting to open files with 'flag' in its name by open/openat/name_to_handle_at. (/tmp/asdflagasd etc.)
* Child process attempting to create a symlink or hardlink for file with 'flag' in its name by symlink/symlinkat/link.
* Child process attempting to call illegal syscall. (exec/stub_execveat)

ELF64 and ELF32 supported, including PIE

Installation

or

It will install a console script 'pwn_sandbox'.

Usage

There will be a binary output named binary_sandbox in your binary's folder

Requirement

* python 2.7
* pwntools
* ~~lief~~ Already included in project cause newest lief sucks.

Known issues

* ~~Centos NOT supported~~
* Might crash on ELF contains multi loadable segments. (I haven't seen this type of ELF yet)
* Sandbox might be bypassable, but it isn't designed as an impenetrable shield anyway. (issues are welcome.)
* DO NOT use newest lief or you will be fucked when processing non-pie ELF32 file.

TODO

* ~~Find a clean method to jump back to oep~~
* ~~New method to support centos~~

Changelog

[0.3] - 2019-01-08

[0.2] - 2019-01-07

[0.1] - 2019-01-05

项目信息

开发语言：Python

Star 数：97

技术要点

该项目属于CTF思路方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕Yet another sandbox for CTF challenge in AWD mode展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。