[pantalaimon]

Yea this is very surprising. I run a file server in my local network. There is no access control on it because it’s behind my router’s firewall, but everyone in the LAN can access it.

I find it very surprising that now any random website can access it with no oversight. Why worry about spectre and meltdown when such blatant backdoors are implemented in browsers?!

[dreamcompiler]

Does your file server speak HTTP? If so you might have a problem. If not, it sounds like it's inaccessible to this attack, except to discover that it exists.