An improper authentication for critical function issue in Hitachi Kokusai Electric Network products for monitoring system (Camera, Decoder and Encoder) and bellow allows attckers to remotely reboot the device via a crafted POST request to the endpoint /ptipupgrade.cgi. Security information ID hitachi-sec-2022-001 contains fixes for the issue.
https://www.hitachi-kokusai.co.jp/global/en/products/info/vulnerable/hitachi-sec-2022-001/index.html
https://gist.github.com/Nwqda/5efea18c9142c6a966d85c6be2c0c2b5