Server-Side Request Forgery in JetLinks Community

Executive Summary

The vulnerability is a Server-side Request Forgery (SSRF) in the device metadata import interface of jetlinks community version 2.11. SSRF allows an attacker to make the server send unauthorized requests to internal or external systems, potentially accessing restricted resources or services.

Useful 0 Not Useful 0

Detection Guidance

To detect this SSRF vulnerability, monitor network traffic for outbound HTTP requests originating from the jetlinks-community server, particularly to unexpected internal or external destinations. Check logs for requests to /device/instance/{productId}/property-metadata/import with fileUrl parameters starting with http. Test by sending a crafted request with a fileUrl pointing to a controlled server to observe if the server attempts to fetch it.

Useful 0 Not Useful 0

Impact Analysis

An attacker could exploit this SSRF vulnerability to access internal network resources, bypass firewalls, or interact with other services running on the server. This could lead to data breaches, unauthorized access to sensitive information, or further network compromise.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection principles or HIPAA's security requirements. Compliance may be compromised if sensitive data is exposed or if the system fails to protect personal health information.

Useful 0 Not Useful 0

Mitigation Strategies

Immediately restrict access to the /device/instance/{productId}/property-metadata/import interface. Disable or remove the vulnerable endpoint if not required. Implement network-level controls to block unauthorized SSRF attempts targeting internal services.

Useful 0 Not Useful 0