Arbitrary Command Injection Affecting kill-by-port package, versions <0.0.2



    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.26% (63rd percentile)
Expand this section
8.8 high

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-JS-KILLBYPORT-1078531
  • published 30 Mar 2021
  • disclosed 23 Feb 2021
  • credit OmniTaint

How to fix?

Upgrade kill-by-port to version 0.0.2 or higher.


kill-by-port is a kills process by port

Affected versions of this package are vulnerable to Arbitrary Command Injection. If (attacker-controlled) user input is given to the killByPort function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization.

PoC (provided by reporter):

var kill_by_port = require('kill-by-port');

kill_by_port.killByPort('$(touch success)');

A file called success will be created as a result of the execution of touch success.