EUVD-2024-47061

Comprehensive Technical Analysis of EUVD-2024-47061

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The GiveWP – Donation Plugin and Fundraising Platform for WordPress is susceptible to PHP Object Injection through the deserialization of untrusted input from the 'give_title' parameter. This vulnerability affects all versions up to and including 3.14.1. The presence of a Property-Oriented Programming (POP) chain allows attackers to execute arbitrary code remotely and delete arbitrary files.

Severity Evaluation:

• Base Score: 10.0 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

The CVSS score of 10.0 indicates a critical vulnerability due to the following factors:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Changed (C)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This vulnerability is highly exploitable and can lead to severe impacts, including remote code execution and data loss.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Attack: An attacker can exploit this vulnerability without needing any authentication.
• PHP Object Injection: The attacker can inject malicious PHP objects through the 'give_title' parameter.
• POP Chain Exploitation: The presence of a POP chain allows the attacker to manipulate the application's behavior, leading to remote code execution and arbitrary file deletion.

Exploitation Methods:

• Deserialization of Untrusted Input: The attacker can send a crafted payload to the 'give_title' parameter, which gets deserialized by the application.
• Code Execution: By leveraging the POP chain, the attacker can execute arbitrary code on the server.
• File Deletion: The attacker can delete critical files, leading to data loss and potential service disruption.

3. Affected Systems and Software Versions

Affected Software:

• GiveWP – Donation Plugin and Fundraising Platform
• Versions: All versions up to and including 3.14.1

Affected Systems:

• WordPress Websites: Any WordPress site using the affected versions of the GiveWP plugin.
• Server Environments: Servers hosting WordPress sites with the vulnerable plugin installed.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Upgrade to the latest version of the GiveWP plugin (version 3.14.2 or higher) that addresses this vulnerability.
• Disable the Plugin: If an update is not immediately possible, disable the GiveWP plugin to prevent exploitation.

Long-Term Mitigation:

• Regular Updates: Ensure all plugins and WordPress core are regularly updated.
• Input Validation: Implement strict input validation and sanitization for all user inputs.
• Security Plugins: Use security plugins like Wordfence to monitor and protect against vulnerabilities.
• Web Application Firewall (WAF): Deploy a WAF to filter out malicious requests.

5. Impact on European Cybersecurity Landscape

Impact Assessment:

• Widespread Use: The GiveWP plugin is widely used in Europe, making this vulnerability a significant threat to numerous websites.
• Critical Infrastructure: Websites used for donations and fundraising, including those for charities and non-profits, are at risk.
• Data Breach: The vulnerability can lead to data breaches, financial loss, and reputational damage.
• Compliance: Organizations may face compliance issues with regulations such as GDPR if sensitive data is compromised.

Regulatory Implications:

• GDPR Compliance: Organizations must ensure they comply with GDPR by protecting personal data and reporting breaches within 72 hours.
• Cybersecurity Directives: Adherence to EU cybersecurity directives and guidelines is crucial to mitigate risks.

6. Technical Details for Security Professionals

Technical Analysis:

• Deserialization Vulnerability: The 'give_title' parameter is deserialized without proper validation, allowing PHP Object Injection.
• POP Chain: The presence of a POP chain in the plugin's codebase enables attackers to manipulate the application's behavior.
• Code Execution: The attacker can execute arbitrary code by exploiting the POP chain, leading to remote code execution.
• File Deletion: The attacker can delete arbitrary files by manipulating the application's file handling mechanisms.

References for Further Analysis:

• Wordfence Threat Intel: Wordfence Vulnerability Report
• WordPress Plugin Repository: GiveWP Plugin Code
• Wordfence Blog: Bounty Awarded for Vulnerability

Conclusion: This vulnerability poses a critical threat to WordPress sites using the GiveWP plugin. Immediate action is required to update the plugin and implement additional security measures to protect against potential exploitation. Organizations must also ensure compliance with relevant regulations and guidelines to mitigate risks and protect sensitive data.