EUVD-2024-34059

Comprehensive Technical Analysis of EUVD-2024-34059

1. Vulnerability Assessment and Severity Evaluation

The vulnerability in the Tumult Hype Animations plugin for WordPress, identified as EUVD-2024-34059 (CVE-2024-11082), is classified as an arbitrary file upload vulnerability. This flaw arises from the lack of file type validation in the hypeanimations_panel() function, affecting all versions up to and including 1.9.15. The severity of this vulnerability is rated with a CVSS base score of 9.9, indicating a critical risk.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability is exploitable over the network.
• AC:L (Low Complexity): The attack requires low skill or resources to exploit.
• PR:L (Low Privileges Required): The attacker needs Author-level access or higher.
• UI:N (No User Interaction): No user interaction is required for the attack to succeed.
• S:C (Changed Scope): The vulnerability can affect resources beyond the security scope managed by the security authority.
• C:H (High Confidentiality Impact): There is a high impact on the confidentiality of the system.
• I:H (High Integrity Impact): There is a high impact on the integrity of the system.
• A:H (High Availability Impact): There is a high impact on the availability of the system.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Authenticated Attackers: An attacker with Author-level access or higher can exploit this vulnerability.
• Arbitrary File Upload: The attacker can upload malicious files, such as PHP scripts, to the server.

Exploitation Methods:

• Remote Code Execution (RCE): By uploading a malicious PHP file, the attacker can execute arbitrary code on the server.
• Persistent Backdoors: The attacker can upload backdoor scripts to maintain persistent access to the server.
• Data Exfiltration: The attacker can upload scripts to exfiltrate sensitive data from the server.

3. Affected Systems and Software Versions

Affected Software:

• Tumult Hype Animations plugin for WordPress

Affected Versions:

• All versions up to and including 1.9.15

Platform:

• WordPress installations using the affected plugin versions.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Ensure that the Tumult Hype Animations plugin is updated to a version higher than 1.9.15.
• Temporary Disable: If an update is not immediately available, consider temporarily disabling the plugin.

Long-Term Mitigations:

• Regular Updates: Implement a regular update schedule for all plugins and themes.
• Access Control: Limit user roles and permissions to the minimum necessary.
• File Upload Validation: Ensure that all file uploads are validated for type and content.
• Web Application Firewall (WAF): Deploy a WAF to monitor and block suspicious activities.
• Security Audits: Conduct regular security audits and vulnerability assessments.

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. The potential for remote code execution and data exfiltration can lead to severe breaches, including:

• Data Breaches: Sensitive information can be stolen, leading to financial and reputational damage.
• Service Disruption: Attackers can disrupt services, leading to downtime and loss of revenue.
• Compliance Issues: Breaches can result in non-compliance with regulations such as GDPR, leading to legal consequences.

6. Technical Details for Security Professionals

Vulnerable Function:

• hypeanimations_panel() in adminpanel.php

Code Analysis:

• The function lacks proper validation for file types, allowing arbitrary files to be uploaded.

References:

• Wordfence Threat Intel: Wordfence Vulnerability Report
• WordPress Plugin Repository: Tumult Hype Animations Plugin
• GitHub Commit: Fix Commit

Mitigation Code Example:

function hypeanimations_panel() {
    // Ensure file type validation
    $allowed_file_types = array('jpg', 'jpeg', 'png', 'gif');
    $file_type = pathinfo($_FILES['upload']['name'], PATHINFO_EXTENSION);
    if (!in_array($file_type, $allowed_file_types)) {
        die('Invalid file type.');
    }
    // Proceed with file upload
}

Conclusion: The arbitrary file upload vulnerability in the Tumult Hype Animations plugin for WordPress is critical and requires immediate attention. Organizations should prioritize updating the plugin and implementing robust security measures to mitigate the risk. Regular security audits and adherence to best practices will help maintain a secure cyber environment.