Introduction & Environment setup for Javascript

Hello ... friends today we are going to learn about javaScripts for the Security Testing purpose how a security tester test for security in javaScript so let's start

Basic Requirements :

1. Web Browser
2. firebug
3. Brup Suite

This is our basic environment for this we don't need anything to new install to setup our JavaScript environment

Basic Introduction :

JavaScript is a programming language which is client side programming language & Runs in the Web Browsers for this complete i am going to use firefox browser to understand & analyse the Code of JavaScript

JavaScript is mainly Runs in the Browser & it's main work is to make the web page more Interactive & Beautiful, in these days JavaScript have a big part in the web application, as well as having a big part in the mobile applications too JavaScript mainly used in the Laptops, tablets, smart phones
etc .

Where we can use in a HTML program ?

JavaScript can be placed as at anywhere in our HTML program but to avoid errors & further understanding well about JavaScript we can place it in he Head & after the body tag in the web page mainly JavaScript is used to change the HTML DOM. html dome is Document Object Model

JavaScript having Power to manipulate the DOM (Change HTML Contents )

Here we try to use this JavaScript in the further study about the Web application attacks towards the client side How client affect from the insecure coding in the JavaScript


** If you don't know what is JavaScript & how to use it in more details please study from w3school
Here in the part i am going through the security part in the JavaScript here i try to tell about xss attack what are the main advantages an Attacker can takes if your application is vulnerable to the xss attack & here also i am not going to explain how to detect xss attack in the web application

So let's start with the basic part in the JavaScript

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