JS Enumeration Tools for Bug Bounty Hunting: Identifying Vulnerabilities and Gaining Website…

JS Enumeration is a crucial step in the process of identifying and exploiting vulnerabilities in a website. As a bug bounty hunter, you will need to be familiar with the different tools and techniques available to you for this purpose. In this article, we will take a look at some of the most useful JS Enumeration tools and tips that you can use to improve your chances of finding vulnerabilities.

One of the first things to do when performing JS Enumeration is to analyze the website’s source code to identify any potential JavaScript files that may be present. Once you have a list of these files, you can use tools such as JSParser or JSScan to automate the process of analyzing them. These tools can help you identify any sensitive information that may be present in the JavaScript files, such as hardcoded credentials or keys.

JSParser: This tool is written in Python and can be used to extract all the JavaScript files from a website. It can be downloaded using the command “pip install jsparser”.

To use this tool, run the command “jsparser -u https://example.com"

2. JSRanger: A tool written in JavaScript that can be used to extract all the endpoints from a website. It can be downloaded from GitHub using the command “git clone https://github.com/s0md3v/JSRanger.git".

To use this tool, run the command “node JSRanger.js -u https://example.com"

3. LinkFinder: This tool can be used to extract links, forms, and scripts from a website. It is written in Python and can be downloaded using the command “pip install linkfinder”.

To use this tool, run the command “python linkfinder.py -d -u https://example.com"

4. JSLinkFinder: This tool is similar to LinkFinder but is specifically designed to find JavaScript files. It is written in Python and can be downloaded using the command “pip install jslinkfinder”.

To use this tool, run the command “jslinkfinder -u https://example.com"

5. JScanner: A tool written in JavaScript that can be used to scan a website for JavaScript files and endpoints. It can be downloaded from GitHub using the command “git clone https://github.com/nccgroup/jscanner.git".

To use this tool, run the command “node jscanner.js -u https://example.com"

6. JSFScan: This tool is written in Python and can be used to scan a website for JavaScript files and endpoints. It can be downloaded from GitHub using the command “git clone https://github.com/Xme/JSFScan.git".

To use this tool, run the command “python jsfscan.py -u https://example.com"

7. js-beautify: A tool written in JavaScript that can be used to beautify and format JavaScript code. It can be downloaded from GitHub using the command “git clone https://github.com/beautify-web/js-beautify.git".

To use this tool, run the command “node js-beautify.js -f file.js”

8. JSLint: A tool written in JavaScript that can be used to lint and validate JavaScript code. It can be downloaded from GitHub using the command “git clone https://github.com/douglascrockford/JSLint.git".

To use this tool, run the command “node jslint.js file.js”

9. js-xss: A tool written in JavaScript that can be used to detect cross-site scripting vulnerabilities in JavaScript code. It can be downloaded from GitHub using the command “git clone https://github.com/padolsey/js-xss.git".

To use this tool, run the command “node js-xss.js file.js”

10. JavaScript Deobfuscator: JavaScript Deobfuscator is a tool that can be used to deobfuscate JavaScript code. It can be downloaded from https://github.com/s0md3v/JavaScript-Deobfuscator.

To use this tool, run the command “node caja.js file.js”

python deobfuscator.py -f malicious.js

Start by analyzing the website’s source code to identify any potential JavaScript files that may be present.Use tools such as JSParser or JSScan to automate the process of identifying and analyzing JavaScript files.Look for any sensitive information that may be present in the JavaScript files, such as hardcoded credentials or keys.Check for any known vulnerabilities in the JavaScript libraries and frameworks that are being used on the website.Use browser dev tools to analyze the JavaScript code and understand the website’s functionality.Test for client-side vulnerabilities such as cross-site scripting (XSS) and cross-site request forgery (CSRF).Pay attention to any network requests made by the JavaScript code, as these can reveal additional information about the website.Use a proxy tool such as Burp Suite to intercept and analyze JavaScript requests and responses.Check for any third-party scripts that may be loaded on the website, as these can introduce additional security risks.

In conclusion, JS Enumeration is a crucial step in the process of identifying and exploiting vulnerabilities in a website. By using the right tools and techniques, you can improve your chances of finding vulnerabilities and get a better understanding of the website’s structure and functionality. Remember to always follow the scope of the bug bounty program, and you will be on your way to finding vulnerabilities and earning rewards.

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