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Tag Archives | mod_security

How to Install Nginx with ModSecurity v3.0

Mod Security is an open-source web-based firewall application (or WAF) supported by different web servers: Apache, Nginx and IIS. Mod Security’s Open Source availability has resulted in it becoming one of the world’s most popular Web application firewalls and this application layer firewall is developed by Trustwave’s SpiderLabs and released under Apache License 2.0. Mod […]

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Modx Revolution <=2.6.4 (Remote Code Execution)

Description Last week published two critical vulnerabilities affecting MODX Revolution <=2.6.4 which include remote script execution and file/directory removal. Hackers thereby able to compromise the website or spoil or delete files or directories. In the MODX Revolution Version <= 2.6.4, filtering users have an incorrect access control capability in the parameters, which becomes the phpthumb class that causes the […]

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Drupal – Remote Code Execution (SA-CORE-2018-004 / CVE-2018-7602) nicknamed Drupalgeddon 3

This vulnerability discovered Drupal security team one weeks ago, a highly critical (20/25 NIST rank), (SA-CORE-2018-004 / CVE-2018-7602) nicknamed Drupalgeddon 3. This vulnerability continues Drupalgeddon 2 and allow an unauthenticated attacker to perform remote code execution. An exploitation method was published a few days ago for this vulnerability which allows attacker in the server execute […]

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Whitelist rule with LocationMatch

Sometimes you need disable ModSecurity rules in specific url or program, because it causes false positives. This tutorial we show how you can whitelist rule or rules with apache LocationMatch directive. LocationMatch examples WordPress admin <locationmatch “/wp-(admin|login)/”> SecRuleRemoveById 150005 SecRuleRemoveById 150006 </locationmatch> phpmyadmin <locationmatch “/phpmyadmin/”> SecRuleRemoveById 150005 SecRuleRemoveById 150006 </locationmatch> Depend your server configuration, like […]

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Custom ModSecurity Error message in apache

This tutorial we show that you can change the custom error message page to ModSecurity. Typically, you get 403 or 406 Response code when ModSecurity block access to website. Apache configuration In apache configuration files (Depend your OS & Configuration) includes / errordocument.conf ErrorDocument 403 /403.shtml Add extra row to 406 error page: ErrorDocument 406 […]

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ModSecurity with RBL Database

This tutorial we showing how you can use ModSecurity with RBL database’s to block access to web server. ModSecurity RBL We can use at mod_security phase 1 to optimise these rules and reduce server load, before PHP start executing requests. Here are more information how to ModSecurity processing phases. Also you can use Local DNS […]

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Disable Mod_Security on Directadmin server

If you decided to use Modsecurity on your server with DirectAdmin, there is sometimes a need to disable mod_security on server. Default custombuild installation, mod_security rules installed in: /etc/modsecurity.d/ Apache load’s ModSecurity modules and configuration in: /etc/httpd/conf/extra/httpd-modsecurity.conf Disable mod_security Easiest way disable Modsecurity is disable apache to load ModSecurity module in https-modsecurity.conf file. Just add […]

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Ban with ModSecurity HTTP or HTTPS requests 404 Response code

This tutorial we want Ban with ModSecurity IP addresses for specific time with ModSecurity that causes multiple 404 errors on the web site. Ban with ModSecurity Depend you Apache/Nginx and PHP configuration, you may use phase:1 with rule 4000 & 4002. Also you need enable SecResponseBodyAccess On to ModSecurity configuration files. SecAction “phase:2,initcol:ip=%{REMOTE_ADDR},id:’4000′,pass,nolog” SecRule RESPONSE_STATUS […]

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How to Whitelist IP Address with ModSecurity

If your business has a website, you may be familiar with the mod_security module for Apache Web servers. ModSecurity is a firewall module for Apache servers that blocks malicious programs, scripts and injections, helping to keep your website more secure. Occasionally, you might need to bypass the module filters to accommodate a testing environment or […]

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Processing phases of Modsecurity

ModSecurity is an open source, cross-platform web application firewall (WAF) that can be deployed to secure web servers like apache, IIS and Nginx. Modsecurity works on powerful language of rules and its API allows monitoring of HTTP(S) that is coming in and out of your web server, to keep your web applications up and running […]

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