Authenticated OS Command Injection in TOTOLINK X2000R Router

Executive Summary

This is an OS command injection vulnerability in the TOTOLINK X2000R router firmware. It exists in the formPasswordSetup functionality and allows an attacker to execute arbitrary commands on the device by sending a specially crafted HTTP request. The attacker needs to be authenticated to exploit this vulnerability.

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Detection Guidance

This vulnerability requires authenticated HTTP requests to the vulnerable formPasswordSetup endpoint. Monitor network traffic for POST requests to /cgi-bin/formPasswordSetup with parameters like password or username. Check server logs for unusual commands or unexpected HTTP responses from the device.

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Impact Analysis

This vulnerability can allow an attacker to take full control of your TOTOLINK X2000R router. They could install malware, steal data, monitor network traffic, or use the device as part of a botnet. Since routers often handle all internet traffic, this could compromise your entire network.

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Compliance Impact

This vulnerability allows arbitrary code execution via authenticated HTTP requests, which could lead to unauthorized access to sensitive data. Such access may violate confidentiality requirements under GDPR and HIPAA, potentially resulting in non-compliance if exploited.

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Mitigation Strategies

Immediately update the TOTOLINK X2000R firmware to the latest patched version if available. If no patch exists, restrict access to the device's web interface via network segmentation or firewall rules. Disable unnecessary services and change default credentials. Monitor for suspicious activity.

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