junnythemarksman/cve-2023-30547Python exploit for CVE-2023-30547 vm2 sandbox escape vulnerability. Generates base64-encoded JSON payload to open a reverse shell from vulnerable Node.js sandbox environments.
vm2 is a sandbox that can run untrusted code with whitelisted Node's built-in modules. There exists a vulnerability in exception sanitization of vm2 for versions up to 3.9.16, allowing attackers to raise an unsanitized host exception inside handleException() which can be used to escape the sandbox and run arbitrary code in host context. This vulnerability was patched in the release of version 3.9.17 of vm2. There are no known workarounds for this vulnerability. Users are advised to upgrade.
Python code for PoC in https://gist.github.com/leesh3288/381b230b04936dd4d74aaf90cc8bb244. Used in Codify HTB.
usage: exploit.py [-h] [-u URL] [-p PORT] [-i IP]
description: Opens a reverse shell from a vm2 vulnerable website using a base64-encoded payload in JSON format
options:
-h, --help show this help message and exit
-u URL, --url URL HTTP address of the destination website
-p PORT, --port PORT Port to listen on
-i IP, --ip IP Your IP address