CVE-2023-4220 PoC — Chamilo LMS Unauthenticated Big Upload File Remote Code Execution

Source

https://github.com/LGenAgul/CVE-2023-4220-Proof-of-concept

Associated Vulnerability

Title:Chamilo LMS Unauthenticated Big Upload File Remote Code Execution (CVE-2023-4220)
Description:Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell.

Description

Chamilo LMS Unauthenticated Big Upload File that allows remote code execution

Readme

# CVE-2023-4220-Proof-of-concept
Chamilo LMS Unauthenticated Big Upload File that allows remote code execution

CODE IS MADE AND USED FOR HACKTHEBOX CTF PERMX

Unauthenticated  file upload in big file upload functionality in /main/inc/lib/javascript/bigupload/inc/bigUpload.php in Chamilo LMS <= v1.11.24 that lets us upload any file to the server
allowing us to upload a php reverse shell

This script allows us to get a reverse shell by creating the php shell file,
uploading it on the server and starting a netcat listener

usage: python exploit.py <LOCAL_IP_ADDRESS> <PORT>

the php reverse shell code is used form pentestmonkey
https://github.com/pentestmonkey/php-reverse-shell/blob/master/php-reverse-shell.php

File Snapshot


 [4.0K]  /data/pocs/04df3dcd6dc2e2b15f9c24479cc81d1dfdd28e85
├── [3.9K]  exploit.py
└── [ 720]  README.md

0 directories, 2 files

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