EUVD-2024-33082

Comprehensive Technical Analysis of EUVD-2024-33082

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the EUVD entry EUVD-2024-33082 pertains to the "AI Power: Complete AI Pack" plugin for WordPress. The issue is an arbitrary file upload vulnerability due to missing file type validation in the handle_image_upload function. This flaw allows unauthenticated attackers to upload arbitrary files to the server, potentially leading to remote code execution (RCE).

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: CVSS:3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The CVSS score of 9.8 indicates a critical vulnerability. The vector string highlights that the attack can be executed over the network (AV:N), requires low complexity (AC:L), does not need any privileges (PR:N), and does not require user interaction (UI:N). The impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated File Upload: An attacker can exploit the vulnerability by uploading malicious files, such as PHP scripts, to the server without needing any authentication.
• Remote Code Execution (RCE): Once a malicious file is uploaded, the attacker can execute arbitrary code on the server, leading to full control over the system.

Exploitation Methods:

• Direct Exploitation: The attacker can directly upload a PHP file containing malicious code through the vulnerable handle_image_upload function.
• Chained Exploitation: The attacker can use this vulnerability as part of a larger attack chain, combining it with other vulnerabilities to escalate privileges or move laterally within the network.

3. Affected Systems and Software Versions

Affected Software:

• Plugin: AI Power: Complete AI Pack
• Versions: All versions up to and including 1.8.89

Affected Systems:

• WordPress Sites: Any WordPress installation using the vulnerable versions of the AI Power: Complete AI Pack plugin.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Update the Plugin: Ensure that the AI Power: Complete AI Pack plugin is updated to a version higher than 1.8.89, where the vulnerability has been patched.
• Disable the Plugin: If an update is not immediately available, consider disabling the plugin until a secure version is released.

Long-Term Mitigation:

• Regular Patching: Implement a regular patching and update schedule for all plugins and software.
• File Upload Validation: Ensure that all file uploads are validated for type and content to prevent arbitrary file uploads.
• Web Application Firewall (WAF): Deploy a WAF to monitor and block suspicious file uploads and other malicious activities.
• Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate potential vulnerabilities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using WordPress with the affected plugin. Given the widespread use of WordPress, the potential for widespread exploitation is high, leading to data breaches, unauthorized access, and potential financial losses.

Regulatory Compliance:

• GDPR: Organizations must ensure that they comply with GDPR regulations by protecting personal data from unauthorized access and breaches.
• NIS Directive: Critical infrastructure and essential services must adhere to the NIS Directive, ensuring robust cybersecurity measures are in place.

6. Technical Details for Security Professionals

Vulnerability Details:

• Function: handle_image_upload
• Issue: Missing file type validation
• Impact: Arbitrary file upload leading to potential RCE

Detection and Response:

• Log Analysis: Monitor server logs for unusual file upload activities and suspicious file types.
• Intrusion Detection Systems (IDS): Implement IDS to detect and alert on unauthorized file uploads.
• Incident Response Plan: Develop and maintain an incident response plan to quickly address and mitigate any detected vulnerabilities or breaches.

References:

• Wordfence Threat Intelligence: Wordfence Vulnerability Report
• WordPress Plugin Changeset: WordPress Plugin Changeset

Aliases:

• CVE ID: CVE-2024-10392

Assigner:

• Wordfence

EPSS Score:

• EPSS: 2 (Indicates a low likelihood of exploitation in the wild, but still a significant risk due to the critical nature of the vulnerability)

ENISA IDs:

• Product ID: 9ace94ef-f69e-37b5-b111-8909d41672c7
• Vendor ID: 3fbe2533-bbed-30d0-8b8f-7f891b96c3ee

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and protect their digital assets.