CVE-2019-5736 PoC — Docker 操作系统命令注入漏洞

Source

https://github.com/Lee-SungYoung/cve-2019-5736-study

Associated Vulnerability

Title:Docker 操作系统命令注入漏洞 (CVE-2019-5736)
Description:runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Readme

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   - (1). stage2.c�� IP�ּҸ� ȣ��Ʈ�� �ּҷ� �ٲߴϴ�
   - (2). DockerFile�� ����ϴ� docker build -t cve .
   - (3). docker run -d -t --name cvetest cve 
   - (4). �����ϱ��� runc���̳ʸ��� ����մϴ� cp /usr/bin/docker-runc /usr/bin/docker-runc.bak
   - (5). docker exec -it cve /bin/bash �����մϴ�.
   - (6). in docker run cd /root && ./run.sh && exit 
   - (7). �͹̳��� ���� ���� nc -nlvvp 4455 
   - (8). �ٽ� ��Ŀ ���� docker exec -it cve /bin/bash

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


 [4.0K]  /data/pocs/6a3bf9ba6cbf22b8490c9837871571258446904c
├── [ 369]  Dockerfile
├── [ 535]  README.md
├── [ 265]  run.sh
├── [ 393]  stage1.c
└── [ 492]  stage2.c

0 directories, 5 files

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