Arbitrary Command Injection Affecting ps-visitor package, versions *


0.0
high
0
10

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.53% (77th percentile)
Expand this section
NVD
9.8 critical

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-PSVISITOR-1078544
  • published 18 Apr 2021
  • disclosed 18 Apr 2021
  • credit OmniTaint

How to fix?

There is no fixed version for ps-visitor.

Overview

ps-visitor is a Node.js visit command ps aux and kill.

Affected versions of this package are vulnerable to Arbitrary Command Injection. If attacker-controlled user input is given to the kill 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 ps_visitor = require('ps-visitor');
ps_visitor.kill('$(touch success)');

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

References