EUVD-2024-51741

Comprehensive Technical Analysis of EUVD-2024-51741

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The iControlWP – Multiple WordPress Site Manager plugin for WordPress is vulnerable to PHP Object Injection due to deserialization of untrusted input from the reqpars parameter. This vulnerability affects all versions up to and including 4.4.5. The vulnerability allows unauthenticated attackers to inject a PHP Object, but it requires the presence of a Property-Oriented Programming (POP) chain in another plugin or theme installed on the site to be exploitable.

Severity Evaluation: The vulnerability has a CVSS Base Score of 9.8, which is considered critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates:

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

This high severity score underscores the potential for significant impact if exploited, including unauthorized access to sensitive data, arbitrary file deletion, and code execution.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Attack: An attacker can exploit this vulnerability without needing to authenticate, making it highly accessible.
• Deserialization of Untrusted Input: The attacker can inject malicious PHP objects through the reqpars parameter, which is then deserialized by the vulnerable plugin.

Exploitation Methods:

• PHP Object Injection: The attacker crafts a specially designed payload that, when deserialized, creates a PHP object. This object can then be manipulated to perform malicious actions.
• POP Chain Utilization: The attacker leverages a POP chain present in another plugin or theme to escalate the impact of the injection, leading to actions such as file deletion, data retrieval, or code execution.

3. Affected Systems and Software Versions

Affected Systems:

• WordPress sites using the iControlWP – Multiple WordPress Site Manager plugin.

Affected Software Versions:

• All versions of the iControlWP – Multiple WordPress Site Manager plugin up to and including 4.4.5.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Ensure that the iControlWP – Multiple WordPress Site Manager plugin is updated to a version higher than 4.4.5, 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 Strategies:

• Regular Audits: Conduct regular security audits of all installed plugins and themes to identify and mitigate vulnerabilities.
• Least Privilege Principle: Ensure that plugins and themes operate with the least privileges necessary to minimize the impact of potential vulnerabilities.
• Input Validation: Implement robust input validation and sanitization mechanisms to prevent untrusted input from being processed.

5. Impact on European Cybersecurity Landscape

Regulatory Compliance:

• GDPR Compliance: The vulnerability poses a risk to the confidentiality and integrity of personal data, which could result in GDPR violations and potential fines.
• NIS Directive: Organizations operating critical infrastructure must ensure that their systems are secure, and this vulnerability could impact their compliance with the NIS Directive.

Economic Impact:

• Business Disruption: Exploitation of this vulnerability could lead to significant business disruptions, including data breaches, loss of customer trust, and financial losses.
• Reputation Damage: Organizations that fail to mitigate this vulnerability could suffer reputational damage, affecting their market position and customer relationships.

6. Technical Details for Security Professionals

Vulnerability Details:

• Deserialization Issue: The vulnerability arises from the deserialization of untrusted input from the reqpars parameter in the RequestParameters.php file.
• Code Analysis:
  • File: RequestParameters.php
  • Line: 14 and 42
  • Issue: The code does not properly validate or sanitize the input before deserialization, leading to the injection vulnerability.

References:

• Wordfence Threat Intelligence: Wordfence Vulnerability Report
• WordPress Plugin Repository:
  • RequestParameters.php Line 14
  • RequestParameters.php Line 42

Conclusion: The iControlWP – Multiple WordPress Site Manager plugin vulnerability (EUVD-2024-51741) is a critical issue that requires immediate attention. Organizations should prioritize updating the plugin and implementing robust security measures to mitigate the risk of exploitation. The potential impact on data confidentiality, integrity, and availability underscores the importance of proactive cybersecurity practices.