What are the OWASP ModSecurity Core Rules (CRS) and why should I use them?
Using ModSecurity requires rules. In order to enable users to take full advantage of ModSecurity immediately, Trustwave’s SpiderLabs is sponsoring the OWASP ModSecrity Core Rule Set (CRS) Project. Unlike intrusion detection and prevention systems which rely on signature specific to known vulnerabilities, the Core Rule Set provides generic protection from unknown vulnerabilities often found in web application that are in most cases custom coded. You may also consider writing custom rules for providing a positive security envelope to your application or critical parts of it. The Core Rule Set is heavily commented to allow it to be used as a step-by-step deployment guide for ModSecurity.
