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CVE-2021-31642

Description

A denial of service condition exists after an integer overflow in several IoT devices from CHIYU Technology, including BIOSENSE, Webpass, and BF-630, BF-631, and SEMAC. The vulnerability can be explored by sending an unexpected integer (> 32 bits) on the page parameter that will crash the web portal and making it unavailable until a reboot of the device.

POC

Reference

- http://packetstormsecurity.com/files/162934/CHIYU-IoT-Denial-Of-Service.html

- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31642

Github

- https://github.com/ARPSyndicate/cve-scores

- https://github.com/ARPSyndicate/cvemon