What is ModSecurity rule?

The OWASP ModSecurity Core Rule Set (CRS) is a set of generic attack detection rules for use with ModSecurity or compatible web application firewalls. The CRS aims to protect web applications from a wide range of attacks, including the OWASP Top Ten, with a minimum of false alerts.

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What is ModSecurity action?

ModSecurity is an open source, cross-platform web application firewall (WAF) module. https://modsecurity.org/about.html. So whenever you see the 403 (ModSecurity Action), this means that the mod security firewall has blocked the request.

Where are ModSecurity rules?

Upon installation, ModSecurity is set to log events according to default rules. You’ll need to edit the configuration file to adjust the rules to detect and block traffic. The default configuration file is /etc/modsecurity/modsecurity. conf-recommended.

What is ModSecurity IIS?

Security Research & Defense / By swiat / July 26, 2012 June 20, 2019 / IIS, ModSecurity, Workarounds. Vulnerabilities in on-line services, like cross-site scripting, cross-site request forgery, or even information disclosure, are important areas of focus for the Microsoft Security Response Center (MSRC).

What is ModSecurity in nginx?

The NGINX ModSecurity WAF is a web application firewall (WAF) based on ModSecurity 3.0, a rewrite of the ModSecurity software that works natively as a dynamic module for NGINX Plus. The NGINX ModSecurity WAF can be used to stop a broad range of Layer 7 attacks and respond to emerging threats with virtual patching.

What is ModSecurity used for?

Introduction ModSecurity is a plug-in module for Apache that works like a firewall. It functions through rule sets, which allow you to customize and configure your server security. ModSecurity can also monitor web traffic in real time and help you detect and respond to intrusions.

How do I edit the default configuration file for modsecurity?

What is ModSecurity on Apache?

Learn how to Setup & Configure ModSecurity on Apache (Debian, Ubuntu, CentOS). ModSecurity is an Open-source firewall application for Apache. How to Set up & Configure ModSecurity on Apache – Knowledge Base by phoenixNAP

How do I Turn on ModSecurity?

ModSecurity has a master switch—the SecRuleEngine directive—that allows you to quickly turn it on and off. This directive will always come first in every configuration. I generally recommend that you start in detection-only mode, because that way you are sure nothing will be blocked. # Enable ModSecurity, attaching it to every transaction.

The default configuration file is /etc/modsecurity/modsecurity. conf-recommended.

What is SecRequestBodyLimit?

The SecRequestBodyLimit directive specifies the maximum POST data size. If anything larger is sent by a client the server will respond with a 413 Request Entity Too Large error. If your web application doesn’t have any file uploads this value can be greatly reduced.

Is ModSecurity open source?

ModSecurity, sometimes called Modsec, is an open-source web application firewall (WAF).

Do I need ModSecurity?

For ecommerce purposes, ModSecurity is an essential piece of PCI DSS compliance, helping satisfy Requirement 6.6 by helping shield your site against external threats. Therefore, we strongly advise against disabling or uninstalling the module.

Should I disable ModSecurity?

We will not recommend to disable Mod-Security on your account. Mod_security module helps to protect your website from various attacks. If mod-security is disabled on your account, your website will be at risk from vulnerabilities.

Should I use ModSecurity?

How do you compile ModSecurity?

1 – Install NGINX from Our Official Repository.
2 – Install Prerequisite Packages.
3 – Download and Compile the ModSecurity 3.0 Source Code.
4 – Download the NGINX Connector for ModSecurity and Compile It as a Dynamic Module.
5 – Load the NGINX ModSecurity Connector Dynamic Module.

What is ModSecurity Nginx?

What is SecRequestBodyNoFilesLimit?

SecRequestBodyNoFilesLimit is a configuration item available in ModSecurity v2 that supplements the older config item SecRequestBodyLimit. The difference between the two being that the former excludes file upload content within multipart requests from its byte count.

What is ModSecurity in cPanel?

ModSecurity is a web application firewall. It monitors incoming web traffic for threats in real-time, blocking malicious connections before they reach applications.

What is the usage of the ModSecurity plugin?

ModSecurity is an open-source web-based firewall application (or WAF) supported by different web servers: Apache, Nginx and IIS. The module is configured to protect web applications from various attacks. ModSecurity supports flexible rule engine to perform both simple and complex operations.

What is ModSecurity?

ModSecurity. ModSecurity, sometimes called Modsec, is an open-source web application firewall (WAF). Originally designed as a module for the Apache HTTP Server, it has evolved to provide an array of Hypertext Transfer Protocol request and response filtering capabilities along with other security features across a number…

How do I edit ModSecurity configuration settings?

In WHM, you can edit ModSecurity configuration settings by clicking the “Mod Security” plugin link (pictured earlier on this page), and clicking the “Edit Config” button. The configuration details that can affect your downloads are the following:

Why is ModSecurity interfering with my website?

Another cause of this enigmatic symptom can be a conflict between web servers: for example, if you have Apache and NGINX installed on the same server, make sure that they both do not use gzip compression – the result can look very much like ModSecurity interfering!

How does the ModSecurity engine detect threats?

To detect threats, the ModSecurity engine is deployed embedded within the webserver or as a proxy server in front of a web application. This allows the engine to scan incoming and outgoing HTTP communications to the endpoint.