Ppmap – A Scanner/Exploitation Tool Written In GO, Which Leverages Prototype Pollution To XSS By Exploiting Known Gadgets

A simple scanner/exploitation tool written in GO which automatically exploits known and existing gadgets (checks for specific variables in the global context) to perform XSS via Prototype Pollution. NOTE: The program only exploits known gadgets, but does not cover code analysis or any advanced Prototype Pollution exploitation, which may include custom gadgets.

Requirements

Make sure to have chromedp installed:
go get -u github.com/chromedp/chromedp

Installation

• Automatically

  • Download the already compiled binary here
  • Give it the permission to execute chmod +x ppmap

• Manually (compile it yourself)

  • Clone the project:
    git clone https://github.com/kleiton0x00/ppmap.git
  • Change directory to ppmap folder:
    cd ~/ppmap
  • Build the binary
    go build ppmap.go

Usage

Using the program is very simple, you can either:

• scan a directory/file (or even just the website): echo 'https://target.com/index.html' | ./ppmap

• or endpoint: echo 'http://target.com/something/?page=home' | ./ppmap

For mass scanning:
cat url.txt | ./ppmap where url.txt contains all url(s) in column.

Demo

Feel free to test the tool on the following websites as a part of demonstration:
https://msrkp.github.io/pp/2.html
https://ctf.nikitastupin.com/pp/known.html

Workflow

• Identify if the website is vulnerable to Prototype Pollution by heuristic scan
• Fingerprint the known gadgets (checks for specific variables in the global context)
• Display the final exploit & ready to perform XSS

Credits

Many thanks to @Tomnomnom for the inspiration: https://www.youtube.com/watch?v=Gv1nK6Wj8qM&t=1558s
The workflow of this program is hugely based on this article: https://infosecwriteups.com/javascript-prototype-pollution-practice-of-finding-and-exploitation-f97284333b2
The fingerprint javascript file is based on this git: https://gist.github.com/nikitastupin/b3b64a9f8c0eb74ce37626860193eaec