ATutor Gameme Module Remote Code Execution

Executive Summary

ATutor Gameme module allows unrestricted file uploads of any type and extension. Files are stored in a web-accessible location before validation. An authenticated attacker can upload a malicious script using a valid course_id, typically course_id=0 for global context. The script can then be executed remotely via HTTP, leading to remote code execution as the web server user.

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Detection Guidance

Check for unexpected files in web-accessible directories, particularly in ATutor Gameme module upload folders. Look for files with executable extensions like .php, .jsp, or .asp in locations where only static content should exist. Monitor HTTP requests to these directories for unusual scripts being executed.

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Impact Analysis

This vulnerability allows attackers to execute arbitrary code on the server hosting ATutor. This could lead to data theft, unauthorized access, system compromise, or further network infiltration. Since the product is no longer supported, patches are unavailable.

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Compliance Impact

This vulnerability likely violates compliance requirements for data protection and security, such as GDPR and HIPAA, due to inadequate access controls and failure to protect sensitive data. Remote code execution risks severe breaches, leading to regulatory penalties and loss of trust.

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Mitigation Strategies

Disable the Gameme module immediately if not required. Restrict file uploads to only safe extensions like images or documents. Implement strict file validation before storage. Block direct access to upload directories via web server configuration. Consider migrating to a supported alternative as the product is no longer maintained.

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