That's not a vuln, it's because the public_html has world-read permissions (0755). There are 3 options to fix that:
1. Make the folder 0711. Executable but not readable.
1. Make public html owned by the group "nobody", and assign the permission 0750
2. Make Apache SEXEC (I think), so that Zorm's stuff runs as the user Zorm, and make the permission 0700. But that opens a whole new barrel of monkeys.
Also, that's not "SSH" at all, even if it was a vuln it would be a permissions vuln. SSH is the means to get a remote connection and has nothing to do with what happens once you're there.