Arbitrary Command Injection Affecting ps-visitor package, versions *


0.0
high
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

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  • 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