Arbitrary Command Injection Affecting node-shell-quote package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
4.22% (91st percentile)

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  • Snyk IDSNYK-UBUNTU1804-NODESHELLQUOTE-1766719
  • published23 Oct 2021
  • disclosed21 Oct 2021

Introduced: 21 Oct 2021

CVE-2021-42740  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:18.04 node-shell-quote.

NVD Description

Note: Versions mentioned in the description apply only to the upstream node-shell-quote package and not the node-shell-quote package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

The shell-quote package before 1.7.3 for Node.js allows command injection. An attacker can inject unescaped shell metacharacters through a regex designed to support Windows drive letters. If the output of this package is passed to a real shell as a quoted argument to a command with exec(), an attacker can inject arbitrary commands. This is because the Windows drive letter regex character class is {A-z] instead of the correct {A-Za-z]. Several shell metacharacters exist in the space between capital letter Z and lower case letter a, such as the backtick character.

CVSS Base Scores

version 3.1