cPGuard WAF required settings and depencies
cPGuard WAF is a set of ModSecurity rules set which can work with Apache, Nginx, and Litespeed Web Servers. As it is written on top of the ModSecurity module, it has related dependencies and they must meet before enabling cPGuard WAF. Based on the control panel and other software you use on your server, you may need to adjust related settings to make things ready for cPGuard WAF.
Here we will describe some of the common and generic settings that you need to do if you are getting WAF settings errors in cPGuard
Requirements and Settings
The server must meet the following requirements to enable cPGuard WAF
- ModSecurity version 2.9.4 or higher must be enabled on the Web Server
- SecRuleEngine should be turned ON
- OWASP rules set must be DISABLED as it is not compatible with our WAF
- SecAuditLog must be enabled to display WAF logs in the UI [ not required WAF to block attacks…it is only for logging purposes]
Settings in cPanel
The following values should be set properly in Home >> Security Center >> ModSecurity™ Configuration » Configure Global Directives
- “Audit Log Level SecAuditEngine” should be set to “Only log noteworthy transactions” which is recommended
- “Rules Engine SecRuleEngine” should be set to “Process the rules”
Also do not enable additional ModSecurity vendor rules from WHM >> Security Center >> ModSecurity™ Vendors » Manage Vendors
ConfigServer ModSecurity Control
You should not turn off ModSecurity in ConfigServer ModSecurity Control [ CMC ]
Settings in DirectAdmin
You should enable ModSecurity in your Web Server without any additional rules. The CWAF rules are compatible and you can enable that optionally if you would like.
cd /usr/local/directadmin/custombuild ./build update ./build set modsecurity yes ./build set modsecurity_ruleset "no" ./build modsecurity ./build modsecurity_rules ./build rewrite_confs
You should also make sure that SecRuleEngine is enabled in SecRuleEngine should be ON from DirectAdmin >> Server Manager >> ModSecurity
Plesk ModSecurity Settings
In Plesk, you need to enable ModSecurity module in Apache or Nginx with our custom rules set or Comodo WAF ( based on your preference ) before enabling WAF. Please note that you should not enable OWASP rules set, as it is not compatible with cPGuard WAF.
The recommended ways to enable ModSecurity before turning on cPGuard WAF are given below
If you wish to enable ModSecurity in Apache, run following command
plesk bin server_pref --update-web-app-firewall -waf-rule-engine on -waf-web-server apache -waf-rule-set custom -waf-archive-path /opt/cpguard/app/resources/cpg_modsec_enable.conf.zip
If you wish to enable ModSecurity in Nginx, run the following command
plesk bin server_pref --update-web-app-firewall -waf-rule-engine on -waf-web-server nginx -waf-rule-set custom -waf-archive-path /opt/cpguard/app/resources/cpg_modsec_enable.conf.zip
Once ModSecurity is enabled using one of the above commands, you can turn on cPGuard WAF from Settings.
As mentioned above, you can optionally enable Comodo WAF rules instead of our custom ModSecurity rules set if you prefer to use them as well.
ModSecurity Settings in CyberPanel
You need to go to CyberPanel >> Server >> Security >> ModSecurity Conf and match the settings as given below to enable ModSec Security and logging.
Also, go to ModSecurity Rule Packs and make sure that “OWASP ModSecurity Core Rules” is NOT enabled as it is not compatible with cPGuard WAF.
Sample WAF configuration for CyberPanel is given below.
Finally, make sure that your server has a fully qualified hostname ( like server.yourdomain.com ) and it should point to your server IP address. This is required to send test attacks to your server and verify the WAF health.
ModSecurity Settings in Control Web Panel [ CWP ]
You have to enable ModSecurity from CWP >> Security >> Mod Security and configure settings like following
Now edit the Main ModSec Configuration file ( /usr/local/apache/conf.d/mod_security.conf ) from UI or command line and match it like the following
Please refer to CWP Standalone Configuration and complete the configuration once the ModSecurity settings and configured like above.