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openssh 8.4 unable to connect to Netonix's SSH port.

Posted: Wed Oct 28, 2020 1:52 pm
by mayheart
Hi there,

In openssh version 8.3, they disabled SHA1 signed keys due to security issues. On 8.4 it was taken out.

Unable to negotiate with 192.168.xxx.xxx port 22: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1

Netonix firmware needs a newer self signed key. This has also semi broken my Netonix manager as it can't connect to new devices.

Re: openssh 8.4 unable to connect to Netonix's SSH port.

Posted: Wed Oct 28, 2020 2:33 pm
by Stephen
Hey mayheart, this is currently being investigated.

I'm aiming to create an update soon to regenerate the certs for dropbear and lighttpd with more modern encryption.