OWASP Core Rule Set (CRS) provides a comprehensive set of generic attack detection rules for ModSecurity and compatible web application firewalls to protect web applications from a wide range of attacks with minimal false positives.
OWASP CRS (Official Repository)
This tool is primarily used by web security professionals and system administrators to enhance the security of web applications by detecting and blocking common attack vectors, including those listed in the OWASP Top Ten. It integrates with ModSecurity or compatible WAFs to provide automated intrusion detection and prevention, helping organizations reduce vulnerabilities and automate security monitoring.
Users should carefully tune the CRS rules to their specific environment to minimize false positives. Regular updates and community engagement are recommended to stay current with emerging threats and rule improvements. Integration requires a compatible web application firewall such as ModSecurity.
Visit the official OWASP CRS page at https://coreruleset.org/ for detailed installation guides.
Download or clone the repository from GitHub: git clone https://github.com/coreruleset/coreruleset.git
Integrate the CRS rules with your ModSecurity or compatible WAF configuration.
Configure your web application firewall to load the CRS ruleset.
Test the configuration using the provided regression tests or your own test cases.
Monitor logs and tune rules to reduce false positives as needed.git clone https://github.com/coreruleset/coreruleset.git
Clones the OWASP CRS repository to your local machine.
Load CRS rules in ModSecurity configuration
Includes the CRS ruleset in your ModSecurity or compatible WAF setup to enable attack detection.
Run regression tests via GitHub Actions
Uses automated workflows to validate the integrity and effectiveness of the CRS rules.
Create an issue on GitHub
Report false positives, false negatives, or bugs with relevant logs and version information.
Join OWASP Slack #coreruleset channel
Engage with the community for support, discussions, and updates.