CVE-2024-11042

Comprehensive Technical Analysis of CVE-2024-11042

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-11042 CISA Vulnerability Name: CVE-2024-11042 CVSS Score: 9.1

The vulnerability in invoke-ai/invokeai version v5.0.2 allows unauthorized attackers to delete arbitrary files on the server through the POST /api/v1/images/delete web API endpoint. This vulnerability is classified as an Arbitrary File Deletion issue, which is highly critical due to its potential to disrupt system integrity and availability.

Severity Evaluation:

• CVSS Score: 9.1 (Critical)
• Impact: High
• Exploitability: High

The high CVSS score indicates that this vulnerability poses a significant risk to affected systems. The ability to delete arbitrary files can lead to severe consequences, including the loss of critical system files, configuration data, and sensitive information.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Unauthorized Access: An attacker can exploit this vulnerability without requiring authentication, making it easier to target.
2. Network Access: The attacker needs network access to the vulnerable API endpoint. This can be achieved through various means, including direct internet exposure or internal network access.

Exploitation Methods:

1. Direct API Calls: An attacker can send a crafted POST request to the /api/v1/images/delete endpoint with a payload specifying the file path to be deleted.
2. Automated Scripts: Attackers can use automated scripts to systematically delete critical files, aiming to disrupt services or exfiltrate sensitive data.

3. Affected Systems and Software Versions

Affected Software:

• invoke-ai/invokeai version v5.0.2

Affected Systems:

• Any server running the vulnerable version of invoke-ai/invokeai.
• Systems that rely on the integrity and availability of files that can be deleted through this vulnerability.

4. Recommended Mitigation Strategies

1. Patch Management:

   • Upgrade to a patched version of invoke-ai/invokeai that addresses this vulnerability.
   • Monitor the project's repository and security advisories for updates.

2. Access Control:

   • Implement strict access controls to ensure that only authorized users can access the /api/v1/images/delete endpoint.
   • Use authentication and authorization mechanisms to restrict access.

3. Network Segmentation:

   • Segment the network to limit access to the vulnerable API endpoint.
   • Use firewalls and network access controls to restrict unauthorized access.

4. Monitoring and Logging:

   • Enable comprehensive logging for the API endpoint to detect and respond to suspicious activities.
   • Implement monitoring tools to alert on unusual file deletion activities.

5. Backup and Recovery:

   • Regularly back up critical files and configuration data.
   • Ensure that recovery procedures are in place to restore deleted files quickly.

5. Impact on Cybersecurity Landscape

The discovery of CVE-2024-11042 highlights the importance of securing web APIs and ensuring that file operations are properly validated and authorized. This vulnerability underscores the need for:

• Robust API Security: Ensuring that APIs are designed with security in mind, including proper input validation and access controls.
• Regular Security Audits: Conducting regular security audits and penetration testing to identify and mitigate vulnerabilities.
• Incident Response: Having an incident response plan in place to quickly address and mitigate the impact of such vulnerabilities.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: POST /api/v1/images/delete
• Vulnerable Parameter: The file path specified in the request payload.
• Exploitation: An attacker can send a POST request with a crafted payload to delete arbitrary files on the server.

Example Exploit Payload:

{
  "filePath": "/etc/ssh/ssh_host_rsa_key"
}

Mitigation Code Example:

from flask import request, abort

@app.route('/api/v1/images/delete', methods=['POST'])
def delete_image():
    if not request.json or 'filePath' not in request.json:
        abort(400)
    file_path = request.json['filePath']
    # Validate the file path to ensure it is within the allowed directory
    allowed_directory = "/path/to/allowed/directory"
    if not file_path.startswith(allowed_directory):
        abort(403)
    # Proceed with file deletion
    try:
        os.remove(file_path)
        return jsonify({"message": "File deleted successfully"}), 200
    except Exception as e:
        return jsonify({"error": str(e)}), 500

Conclusion: CVE-2024-11042 is a critical vulnerability that requires immediate attention. Organizations should prioritize patching affected systems, implementing robust access controls, and enhancing monitoring and incident response capabilities to mitigate the risk posed by this vulnerability.