Inherited Site Security Review » History » Revision 3
Revision 2 (Jon Goldberg, 11/21/2017 10:33 PM) → Revision 3/6 (Jon Goldberg, 12/04/2017 08:32 AM)
# Inherited Site Security Review This is a checklist of steps to take when inheriting a site that Megaphone JMA did not build. This list is not comprehensive, and we should add to it over time. * Reset the passwords of server and CMS (encourage client to do latter) * Disable unnecessary logins of server and CMS (encourage client to do latter) * If CiviCRM, check civicrm_contact for API keys. Remove/change them. * If CiviCRM, check for CiviConnect apps. * Remove interactive shell login from legitimate server users who don't need a shell: `passwd -l $USERNAME` shell. * Remove Removing all unnecessary public RSA keys for ssh access `rm /home/$USERNAME/.ssh/authorized_keys*` * Remove unnecessary software from the server. TODO: Explain how to find this (dpkg -l, yum list installed, ps -ef, etc.) * Review all running services on the server with service --status-all or (preferably, if using systemd) systemctl * check listening servers with # netstat -lp * compare that output to an nmap scan of localhost # nmap -sT -O localhost * they should line up closely. if nmap shows a port open that netstat does not, run a rootkit checker and investigate further. * Compare THAT output to an nmap scan from another computer (your own - or a dev server if your ISP blocks some ports): `nmap -sT -O www.example.org` * install fail2ban if not already installed. Consider also tripwire and some iptables. * Check for hacks. While [this resource](https://hq.palantetech.coop/projects/commons/wiki/Unhacking_a_WordPress_site) is incomplete, it suffices for now. Despite the name, it's useful for Drupal AND WordPress. Be sure to grep a dump of the database and not just the filesystem.