Megaphone Commons

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# Inherited Site Security Review

This is a checklist of steps to take when inheriting a site that Megaphone 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.

* Remove interactive shell login from legitimate server users who don't need a shell: `passwd -l $USERNAME`

* Remove 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.