Unrestricted File Upload in OCSReports Admin Panel

Executive Summary

This is an unrestricted file upload vulnerability in the CSV file upload feature of the Ocsreports admin_info endpoint. The application only checks the file name provided by the client without verifying the actual file content or restricting allowed file types. This allows an administrator to upload PHP files to a web-accessible directory. If processed, the attacker could execute arbitrary code with the web service's privileges.

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Detection Guidance

Check for unexpected PHP files in web-accessible directories, particularly those uploaded via the Ocsreports admin_info endpoint. Review server logs for suspicious file uploads or execution attempts. Use file integrity monitoring tools to detect unauthorized changes in web directories.

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Impact Analysis

An attacker with admin access could upload malicious PHP files to the server. If these files are processed, they could execute arbitrary code, potentially leading to full system compromise, data theft, or unauthorized access to sensitive information.

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Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and HIPAA's security rules. Organizations may face fines, legal penalties, and reputational damage due to non-compliance with these regulations.

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Mitigation Strategies

Immediately restrict file uploads to the Ocsreports admin_info endpoint. Implement strict file type validation by checking file content, not just the name. Ensure uploaded files are stored outside the web root or with strict access controls. Disable PHP execution in upload directories.

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