SSH inaccessible after upgrade

[eeee]

I upgraded to 6.8.3 earlier today, and since that my password is being rejected when I try to SSH in. Using the same username/password works fine for the webUI.

I've tried restarting SSH (by disabling it in the "Management Access" page of the settings) and I've tried resetting the root password, but neither of these work.

 

The logs contain the standard password failed entries:

Mar 12 18:03:34 server sshd[481]: Failed password for root from 192.168.0.2 port 63027 ssh2

This was all working fine before the upgrade, and I've checked the release notes but don't see anything that would make a change to how this works. Interestingly, SSH to a non-root user will have the password accepted (although the user gets booted out immediately, as was always the case)

Edited March 12, 2020 by eeee

[Squid]

Dud you install one of the ssh plugins by chance?

[eeee]

Just now, Squid said:

Dud you install one of the ssh plugins by chance?

Nope, I don't have any ssh-related plugin installed.

[Squid]

Within the /config/ssh folder on the flash drive, are the file(s) zero byte in length

[eeee]

No, all fully present, however I did just find this in the SSH config.

#LoginGraceTime 2m
PermitRootLogin prohibit-password
# limetech - permit root login
PermitRootLogin prohibit-password

So that explains why I can't log in, just not how it got like this.

 

Next question, can I fix this without having to shut the machine off and pull the USB key?

Edited March 12, 2020 by eeee