Comment on *sshole is a banger of a name
Carl@anarchist.nexus 1 day agoNo, there was an SSH vulnerability discovered a day or two ago, which allows anyone to log in with a fake certificate. So if your SSH is configured to only use a certificate, (not cert and password) then anyone can log into your shit.
mumblerfish@lemmy.world 1 day ago
Huh, I must have missed that one. Alpine/musl as well then? Got a ref?
Carl@anarchist.nexus 1 day ago
Yes, it specifically affects the Alpine/musl interaction. It’s a vulnerability in how Alpine interfaces with musl, and allows anyone who can reach your SSH port to instantly log into a passwordless account by entering over 256 characters into the password field.
The vuln is nicknamed *sshole, if you want to search it. Because it only works on passwordless accounts, (meaning it has a * in the password field). And the most common use-case for passwordless accounts is because you’re using cert-based authentication instead. Thus the warnings that if you’re using cert-only SSH, you’re most likely vulnerable.