CVE-2024-47051

Comprehensive Technical Analysis of CVE-2024-47051

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-47051 CVSS Score: 9.1

The CVSS score of 9.1 indicates a critical severity level. This score is derived from the potential for remote code execution (RCE) and path traversal file deletion, both of which can lead to significant compromise of the affected system. The vulnerabilities allow authenticated users to execute arbitrary code and delete arbitrary files, posing a severe risk to system integrity and confidentiality.

2. Potential Attack Vectors and Exploitation Methods

Remote Code Execution (RCE) via Asset Upload:

• Attack Vector: An authenticated user can exploit the asset upload functionality by uploading executable files, such as PHP scripts, due to insufficient enforcement of allowed file extensions.
• Exploitation Method: The attacker can craft a malicious file with an executable extension and upload it to the server. Once uploaded, the attacker can execute the file, leading to arbitrary code execution on the server.

Path Traversal File Deletion:

• Attack Vector: An authenticated user can manipulate the file deletion process by exploiting improper handling of path components.
• Exploitation Method: The attacker can use path traversal techniques to navigate the file system and delete arbitrary files, potentially leading to system instability or data loss.

3. Affected Systems and Software Versions

Affected Software: Mautic versions before 5.2.3

All installations of Mautic prior to version 5.2.3 are vulnerable to these issues. Organizations using these versions should prioritize updating to the latest version to mitigate the risk.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update Software: Upgrade to Mautic version 5.2.3 or later, which includes patches for these vulnerabilities.
• Access Control: Restrict access to the asset upload functionality to trusted users only.
• File Validation: Implement additional server-side validation to enforce allowed file extensions and prevent the upload of executable files.
• Monitoring: Enable logging and monitoring for suspicious file uploads and deletions.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.
• Security Training: Educate users and administrators on the risks associated with file uploads and the importance of adhering to security best practices.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to detect and respond to unauthorized activities.

5. Impact on Cybersecurity Landscape

The discovery of these vulnerabilities highlights the ongoing challenge of securing web applications, particularly those with file upload functionalities. The potential for RCE and path traversal attacks underscores the need for robust input validation, access controls, and regular security updates. Organizations must remain vigilant and proactive in addressing such vulnerabilities to protect against potential breaches.

6. Technical Details for Security Professionals

Remote Code Execution (RCE) via Asset Upload:

• Technical Details: The vulnerability arises from insufficient validation of file extensions during the asset upload process. Attackers can bypass these restrictions by renaming files or using double extensions (e.g., file.php.jpg).
• Mitigation: Ensure that file uploads are strictly validated against a whitelist of allowed extensions. Implement additional checks to verify file content and prevent the execution of uploaded files.

Path Traversal File Deletion:

• Technical Details: The vulnerability stems from improper handling of path components during file deletion. Attackers can exploit this by including directory traversal sequences (e.g., ../../) in file paths.
• Mitigation: Sanitize and validate all user inputs related to file paths. Use secure coding practices to prevent directory traversal attacks, such as canonicalizing file paths and restricting access to sensitive directories.

References:

• Mautic Security Advisory
• OWASP Code Injection
• OWASP Path Traversal

By addressing these vulnerabilities promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and protect their systems from potential attacks.