help with url rewrite rule abyss web server

#HELP WITH URL REWRITE RULE ABYSS WEB SERVER HOW TO#
#HELP WITH URL REWRITE RULE ABYSS WEB SERVER SOFTWARE#

Once you configure the URL rewrite rules in your scanner, it sends a type of HTTP requests called translated queries. While Invicti can scan MVC web applications, many other web vulnerability scanners cannot, even when URL rewrite rules are configured. The problem is worsened when scanning MVC web applications because such applications use a different approach to URL rewriting. NET web applications do not accept such HTTP requests.

#HELP WITH URL REWRITE RULE ABYSS WEB SERVER HOW TO#

And, even if you do know how to do it, configuring rewrite rules is a very difficult and time-consuming task.Īssuming you manage to configure URL rewrite rules in your web vulnerability scanner, there are further problems, or at least, there are a number of limitations to how the scanners scan the web application.Īs a security precaution, web applications do not accept HTTP requests which are already ‘translated’, such as. Unless you are the developer of the web application itself or have a deep understanding of the web application, and unless you have direct access to the configuration files, it is impossible to configure URL rewrite rules on the scanner. User should have access to web server configuration files.User must know how to write regular expressions.Configuring of URL rewrite rules support is very difficult.

Since URL rewrite technology has become really popular in web applications, many commercial web vulnerability scanners allow users to configure the scanner so it can identify the parameters in the URLs and scan them.īut even though web vulnerability scanners can be configured to scan websites using URL Rewrite Rules, there are several other problems users can face: If you do not configure URL rewrite rules in Invicti, it will heuristically identify the pattern and will limit the scan to avoid having prolonged scans and incorrect results.Ĭonfiguring URL rewrite rules is a difficult process

#HELP WITH URL REWRITE RULE ABYSS WEB SERVER SOFTWARE#

If memory problems and other exceptions are not handled properly by your scanner, this could also lead to your software crashing, leaving you with no results and a number of wasted hours. For example, if the web vulnerability scanner is scanning a tool database that contains 100,000 tools, since the scanner is unable to identify that there is a parameter and a value in the URL, it would think that they are all different pages, so it will try to crawl them and scan them all. This problem can lead to prolonged scans and incorrect scan results. Scanners assume that the URLs are directories rather than parameter names or values, and leave them unscanned.įor example, when scanning the URL the scanner would think that both tools and hammer are directories, while in reality tools is a parameter and hammer is a value. This table lists and explains the problems that can occur when automated web vulnerability scanners attempt to scan websites that employ URL rewrite technology and rules.Ī common problem web vulnerability scanners have when scanning web applications that use URL rewriting technology is that scanners are unable to identify parameters in the URLs. It is also possible to scan pages which have more than one parameter in the URL.įor further information on how URL Rewrite Rules work in Invicti, see How Invicti handles URL rewriting. In this example, we can determine that the subdirectory (‘/tools’) in the first URL is actually a parameter in the library.php file that accepts inputs, which in this case is the tool name (‘hammer’).ĭuring the scan, Invicti sends normal HTTP requests to the web application to mimic an attacker, ensure that such requests are accepted by the web application, and all parameters in the URLs are properly scanned. Using a URL rewrite rule, the web server converts this URL to a specific format, so it can retrieve the data from the back end database and display the tool details to the website visitor:

For example, when you browse a hardware store online library, the URL typically looks something like this.

This makes it easier for search engines to index all the pages on a website, while web browsers are supplied the URL in a format they understand and makes them easy for users to remember. Web application developers use URL Rewrite Rules to hide parameters in the URL path structure.

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Help with url rewrite rule abyss web server