EUVD-2024-33180

Comprehensive Technical Analysis of EUVD-2024-33180

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2024-33180 pertains to a Local File Inclusion (LFI) flaw in the Chartify – WordPress Chart Plugin. This vulnerability allows unauthenticated attackers to include and execute arbitrary files on the server via the 'source' parameter. The severity of this vulnerability is rated with a CVSS Base Score of 9.8, indicating a critical risk. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) highlights the following characteristics:

• Attack Vector (AV): Network (N) - The vulnerability can be exploited remotely over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill and resources.
• Privileges Required (PR): None (N) - No authentication is required to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability can result in a significant loss of confidentiality.
• Integrity (I): High (H) - The vulnerability can result in a significant loss of integrity.
• Availability (A): High (H) - The vulnerability can result in a significant loss of availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector involves manipulating the 'source' parameter to include and execute arbitrary files on the server. Potential exploitation methods include:

• Arbitrary File Inclusion: Attackers can include files from the server, leading to the execution of malicious PHP code.
• Code Execution: By including files with embedded PHP code, attackers can execute arbitrary commands on the server.
• Data Exfiltration: Attackers can include configuration files or other sensitive files to extract sensitive information.
• Bypassing Access Controls: Attackers can use this vulnerability to bypass authentication mechanisms and gain unauthorized access to the system.

3. Affected Systems and Software Versions

The vulnerability affects all versions of the Chartify – WordPress Chart Plugin up to and including version 2.9.5. Users of this plugin on WordPress installations are at risk. The vendor, ays-pro, has released a patched version (2.9.6) to address this issue.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following steps are recommended:

• Update the Plugin: Immediately update the Chartify – WordPress Chart Plugin to version 2.9.6 or later.
• Input Validation: Implement strict input validation and sanitization for all user inputs, especially parameters like 'source'.
• Access Controls: Enforce strict access controls and authentication mechanisms to limit unauthorized access.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to any suspicious activities.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.

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 unauthenticated attackers to execute arbitrary code and exfiltrate sensitive data can lead to severe breaches, financial losses, and reputational damage. The high EPSS score of 62 indicates a high likelihood of exploitation in the wild.

6. Technical Details for Security Professionals

• Vulnerability Type: Local File Inclusion (LFI)
• Affected Parameter: 'source'
• Exploitation Method: Manipulating the 'source' parameter to include and execute arbitrary files.
• References:
  • Wordfence Threat Intelligence: Link
  • WordPress Plugin Repository: Link

Conclusion: The Local File Inclusion vulnerability in the Chartify – WordPress Chart Plugin is a critical issue that requires immediate attention. Organizations and individuals using the affected plugin should prioritize updating to the patched version and implement additional security measures to mitigate the risk. The potential impact on the European cybersecurity landscape underscores the importance of proactive security management and regular updates.