An undocumented configuration export port is accessible on some models
of ZKTeco CCTV cameras. This port does not require authentication and
exposes critical information about the camera such as open services and
camera account credentials.
Please see the security advisory from ZKTeco here: https://www.zkteco.com/en/announcement/23 for further information.
https://www.zkteco.com/en/announcement/23