Network Distributed Credentials
This is another example where designers have chosen not to implement a proper credentials management system. Not surprising because writing one from scratch is difficult.
Even Unix hasn't got one of its own, with NIS seemingly having been replaced by SAMBA so as to leverage Microsoft Windows' Active Directory. SAMBA 4 will even do the job of an AD domain controller.
So either the Internet of Things and other embedded devices like traffic lights start using things like SAMBA and AD, or continue to have wide open default passwords. Having a private-ish network interface is not adequate.
Biting the hand that feeds IT
