Command Injection in Tenda Router Firmware

Executive Summary

This vulnerability is a command injection flaw in multiple router models including TR1200, TR3000, WR300, WR1200, WR1300, WR1500, WR3000, WR3600, and WR6500 running specific firmware versions. Attackers can exploit it by sending crafted input to the ipsec_conn interface, allowing them to execute arbitrary commands with root privileges.

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Detection Guidance

Check if any of the affected devices (TR1200 v2.4.15, TR3000 v2.4.21, WR300 v2.4.25, WR1200 v2.4.23, WR1300 v2.4.22, WR1500 v2.3.10, WR3000 v2.4.19, WR3600 v2.3.16, WR6500 v2.3.15) are running on your network. Inspect the ipsec_conn interface for unusual or crafted inputs that may indicate command injection attempts.

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Impact Analysis

If exploited, this vulnerability could allow attackers to take full control of affected routers. This may lead to network compromise, data theft, unauthorized access to connected devices, or disruption of network services. Users should update firmware immediately to mitigate risks.

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Compliance Impact

This vulnerability could lead to unauthorized root access, potentially exposing sensitive data. This may violate GDPR's data protection requirements and HIPAA's security rules for protected health information if exploited.

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Mitigation Strategies

Immediately update the affected devices to the latest patched versions if available. Disable or restrict access to the ipsec_conn interface if not required. Monitor network traffic for suspicious activity targeting this interface.

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