Once upon a time, Dmitry Belyavskiy dbelyavs@redhat.com said:
Drafted here, to be published: https://fedoraproject.org/wiki/Changes/SSHKeySignSuidBit
I guess the original idea was to reduce the setuid footprint (which is a good goal). I though host-based auth was deprecated at this point anyway - it's not enabled by default, right?
Just a thought: if "reduce setuid-root binaries installed by default" is a goal, what about splitting ssh-keysign off into a subpackage, like openssh-hostauth, that's not installed by default? That could optionally even include a ssh_config.d drop-in that would enable it (although that may not be desired, since even using host-based auth may not be desired gloablly).
You already have to take some action to enable host-based auth, so I wouldn't see this as a big step.