Access root of the server without SSH?

My developers have messed the permission with /var folder while trying to fix magento 2 permission. Now cannot login to SSH via putty neither can i restart SSHD. its coming up with below error Starting sshd: /var/empty/sshd must be owned by root and not group or world-writable. [FAILED] As this is a AWS EC2 server with cPanel/WHM there is no console to access the server to fix the permission issue on /var folder. I am trying to FTP into the server using FTP as SFTP will not work as well but its not letting me login saying authentication failed. I know i am using the correct credentials as it can login to WHM with same details. Also FTP configuration to allow root login on FTP is on. How can I access this server and why is FTP root login not working? Any help or guidance is greatly appreciated.