Overview
CVE-2024-13342 is a serious vulnerability discovered in the Booster for WooCommerce plugin for WordPress. It affects all versions up to and including 7.2.4 and exposes websites to the risk of arbitrary file uploads by unauthenticated attackers. This vulnerability is particularly significant because it can potentially lead to remote code execution, compromising the security and integrity of the affected websites. If successfully exploited, attackers could gain unauthorized access to sensitive data, disrupt website operations, or even take control of the entire system.
Vulnerability Summary
CVE ID: CVE-2024-13342
Severity: High (CVSS: 8.1)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Arbitrary file upload, potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Booster for WooCommerce Plugin | Up to and including 7.2.4
How the Exploit Works
The vulnerability is rooted in the ‘add_files_to_order’ function of the Booster for WooCommerce plugin. This function lacks proper file type validation, making it possible for unauthenticated attackers to upload arbitrary files with double extensions on the affected site’s server. The server might mistakenly execute the first extension present, leading to malicious code execution.
Conceptual Example Code
Here is a conceptual example of how an attacker might exploit this vulnerability:
POST /wp-content/plugins/booster-for-woocommerce/endpoint HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryzXJpHSYBBGZvKJN7
------WebKitFormBoundaryzXJpHSYBBGZvKJN7
Content-Disposition: form-data; name="file"; filename="exploit.php.jpg"
Content-Type: image/jpeg
[...binary data...]
------WebKitFormBoundaryzXJpHSYBBGZvKJN7--In this example, ‘exploit.php.jpg’ is a double extension file with malicious PHP code. Since the server checks only the first extension and executes it, the PHP code gets executed, leading to potential system compromise.
Mitigation
The vendor has released a patch to fix this vulnerability, and users are strongly encouraged to apply this patch as soon as possible. As a temporary mitigation, users can also use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to block malicious file upload attempts. However, these measures only lessen the risk and cannot completely eliminate it. Regular updates and patch management are key to maintaining a secure system.
