Web Application Firewall Detection – Kali Linux Tutorial
WAF or Web application firewall is a security tool that protects a website from various type of attacks which included but not limited to: SQL-injection, XSS, Local file inclusion and others. Web based IPS (intrusion prevention system) has also been designed to protect a web server but these is a difference between WAF and IPS; web application firewall provides protection from web-based attack while IPS protect a web server from network based attack.

The responsibility of a penetration tester is to protect the web server from both directional attacks, so IPS and WAF are both have their own importance for a pen tester. In order to conduct a successful vulnerability assessment on a website, you need to find the security tools that are protecting it.

WAFW00F is the tool to find a web application firewall that is protecting a web server. WAFW00f is a python script which is written by Sandro Gauci && Wendel G. Henrique. A penetration tester can get name of the installed firewall so that exploitation will be started, it was earlier available on backtrack 5 but since backtrack is no longer an active project; so we can use this tool on Kali Linux.

Application → Kali Linux → Information Gathering → IDS/IPS Identification → wafw00f

        _   __  _   ____ _   __  _    _   ____
       ///7/ /.' \ / __////7/ /,' \ ,' \ / __/
      | V V // o // _/ | V V // 0 // 0 // _/ 
      |_n_,'/_n_//_/   |_n_,' \_,' \_,'/_/   
    WAFW00F - Web Application Firewall Detection Tool
    By Sandro Gauci && Wendel G. Henrique

Usage: wafw00f url1 [url2 [url3 ... ]]
example: wafw00f

  -h, --help            show this help message and exit
  -v, --verbose         enable verbosity - multiple -v options increase
  -a, --findall         Find all WAFs, do not stop testing on the first one
  -r, --disableredirect
                        Do not follow redirections given by 3xx responses
  -t TEST, --test=TEST  Test for one specific WAF
  -l, --list            List all WAFs that we are able to detect
  --xmlrpc              Switch on the XML-RPC interface instead of CUI
                        Specify an alternative port to listen on, default 8001
  -V, --version         Print out the version

Everything has its limitation, wafw00f has also some limitation. It can only detect the firewalls which are listed in the script database, so it is recommended that you should update your tool. In the following example you can see that the firewall name was not fetched by wafw00f.

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Web Application Firewall Detection – Kali Linux Tutorial Reviewed by Ethical Hacking on 1:01 PM Rating: 5

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