Secure your servers from POODLE (SSLv3) attacks
I guess you all heard of the recent SSLv3 vulnerability or POODLE a couple days ago. It is a protocol flaw issue so It will affects every implementation of SSLv3. To understand more about this exploit, please read: White paper: https://www.openssl.org/~bodo/ssl-poodle.pdf StackExchange discussions: http://security.stackexchange.com/questions/70719/ssl3-poodle-vulnerability There are already a lot of instructions on how to harden your servers and clients to prevent this kind of attack available on the Internet. Here is a short one I'm using for my servers: 1. nginx: * Create a configuration for ssl /etc/nginx/conf.d/strong-ssl.conf with the following content (disable SSLv3 and use strong ciphers): ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_prefer_server_ciphers on; ssl_ciphers "EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384 EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256 EECDH+aRSA+RC4 EECDH EDH+aRSA RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK ...