Qualys nginx SSL/TLS Admin Ego Enlargement How-To

howto.md

Qualys nginx SSL/TLS Admin Ego Enlargement How-To

Configure nginx to get 94/98 points:

nginx.conf

http {
  ...
  ssl_session_cache    shared:SSL:10m;
  ssl_session_timeout  10m;
  ...
}

server/site

98 points but vulnerable to BEAST (TLSv1 clients):

server {
  ...
  ssl on;
  ssl_certificate           /etc/ssl/certs/cert.crt;
  ssl_certificate_key       /etc/ssl/private/key.key;
  ssl_protocols             TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers               AES256-SHA256:AES256-SHA;
  ssl_prefer_server_ciphers on;
  ...
}

only 94 points, but not vulnerable for BEAST:

server {
  ...
  ssl on;
  ssl_certificate           /etc/ssl/certs/cert.crt;
  ssl_certificate_key       /etc/ssl/private/key.key;
  ssl_protocols             TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers               ECDHE-RSA-AES128-SHA256:AES128-GCM-SHA256:RC4:HIGH:!MD5:!aNULL:!EDH;
  ssl_prefer_server_ciphers on;
  ...
}

Versions

Ubuntu 12.04 LTS

ii  nginx                                1.1.19-1                       small, but very powerful and efficient web server and mail proxy
ii  nginx-common                         1.1.19-1                       small, but very powerful and efficient web server (common files)
ii  nginx-full                           1.1.19-1                       nginx web server with full set of core modules

ii  openssl                              1.0.1-4ubuntu5.2               Secure Socket Layer (SSL) binary and related cryptographic tools

nginx -V
nginx version: nginx/1.1.19
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-log-path=/var/log/nginx/access.log --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --with-debug --with-http_addition_module --with-http_dav_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_realip_module --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module --with-http_xslt_module --with-ipv6 --with-sha1=/usr/include/openssl --with-md5=/usr/include/openssl --with-mail --with-mail_ssl_module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-auth-pam --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-echo --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upstream-fair --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-dav-ext-module

Example

see https://www.ssllabs.com/ssltest/analyze.html?d=roland.io

enjoy!

• Roland (roland@ moriz.de)

Thanks! It was helpful!