An unauthenticated command injection vulnerability exists in multiple parameters in the Gryphon Tower router’s web interface at /cgi-bin/luci/rc. An unauthenticated remote attacker on the same network can execute commands as root on the device by sending a specially crafted malicious packet to the web interface.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-20138
• https://www.tenable.com/security/research/tra-2021-51