Mod security core rule set

Nisha M · 12-25-2013, 05:20 AM

Hi

I have installed modsecurity 2.7.5 on apache 2.4 to provide security for my application, I want to know to activate core rule set of mod security(like SQL injection etc) do I need to download separatly it from somewhere like I found in below link:
http://spiderlabs.github.io/owasp-modsecurity-crs/
Or all core rules are there in mod security itself, I need to just activate them in modsecurity.conf file?

Waiting for response this is urgent for me.

pingu · 12-26-2013, 12:09 PM

AFAIK the core ruleset is not provided wih modsec, you need to download them manually.
To use them, check the base directory for crs, the rules are dividev in sections. Activate the ones you want by including the directories in your modsec-conf file.
Can't give more exact info now a I'm on vacation and can't reach my modsec-secured webservers.

anomie · 12-26-2013, 07:00 PM

I suppose it depends on how your distro has packaged it. But my experience (on both EL and Debian) has been that you download the OWASP core rule set (CRS) separately, as mentioned.

Nisha M · 12-27-2013, 04:27 AM

Pingu/Anomie

Thanks for reply. I got it, we need to download CRS separately,I got the link for this also but its for Linux I am looking for Windows, if you can provide any link for the same. And I want to know step by step, how to configure CRS in modsecurity.conf file. Actually I am new for modsecurity, googled a lot but not getting relevant info.

I am waiting for your reply after vacation.

anomie · 12-29-2013, 09:38 PM

Configuration is site/application specific and non-trivial. Once configured, a trial and error period may be required to evaluate your applications' behaviors with mod_security filtering requests. (I had to tweak a lot of rules for one particularly quirky BI application.)

I recommend reading "ModSecurity Handbook":

http://www.modsecurity.org/documentation/