CVE-2019-5736 PoC — Docker 操作系统命令注入漏洞

Source

https://github.com/agppp/cve-2019-5736-poc

Associated Vulnerability

Title:Docker 操作系统命令注入漏洞 (CVE-2019-5736)
Description:Docker是美国Docker公司的一款开源的应用容器引擎。该产品支持在Linux系统上创建一个容器（轻量级虚拟机）并部署和运行应用程序，以及通过配置文件实现应用程序的自动化安装、部署和升级。 Docker 18.09.2之前版本和其他产品中的runc 1.0-rc6及之前版本中存在安全漏洞，该漏洞源于程序没有正确地处理文件描述符。攻击者可利用该漏洞覆盖主机runc的二进制文件并以root权限执行命令。

Description

getshell test

Readme

To run:  
   - (1). edit poc command in stage2.c  
   - (2). build docker `docker build -t cve .`  
   - (3). run docker  `docker run -d cve /bin/bash -c "tail -f /dev/null"`  
   - (4). backup docker-runc  `cp /usr/bin/docker-runc /usr/bin/docker-runc.bak`  
   - (5). `docker exec -it docker-id /bin/bash`  
   - (6). in docker run `cd /root && ./run.sh && exit`  
   - (7). `docker exec -it docker-id /bin/bash`,bingo!!  

    run `strings /usr/bin/docker-runc | tail -n 2` view docker-runc  
    run  `cp /usr/bin/docker-runc.bak /usr/bin/docker-runc` recovery docker-runc

File Snapshot


 [4.0K]  /data/pocs/6ea16398a54632e9a72dc8e53a7bbedadc10af2f
├── [ 369]  Dockerfile
├── [ 579]  README.md
├── [ 265]  run.sh
├── [ 528]  stage1.c
└── [ 585]  stage2.c

0 directories, 5 files

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