CVE-2021-42740 (Critical) detected in shell-quote-1.6.1.tgz, shell-quote-1.7.2.tgz

[mend-bolt-for-github]

CVE-2021-42740 - Critical Severity Vulnerability

Vulnerable Libraries - shell-quote-1.6.1.tgz, shell-quote-1.7.2.tgz

shell-quote-1.6.1.tgz

quote and parse shell commands

Library home page: https://registry.npmjs.org/shell-quote/-/shell-quote-1.6.1.tgz

Path to dependency file: /wp-content/themes/twentynineteen/package.json

Path to vulnerable library: /wp-content/themes/twentynineteen/node_modules/shell-quote/package.json

Dependency Hierarchy:

• npm-run-all-4.1.5.tgz (Root Library)
  • ❌ shell-quote-1.6.1.tgz (Vulnerable Library)

shell-quote-1.7.2.tgz

quote and parse shell commands

Library home page: https://registry.npmjs.org/shell-quote/-/shell-quote-1.7.2.tgz

Path to dependency file: /wp-content/themes/twentytwentyone/package.json

Path to vulnerable library: /wp-content/themes/twentytwentyone/node_modules/shell-quote/package.json

Dependency Hierarchy:

• npm-run-all-4.1.5.tgz (Root Library)
  • ❌ shell-quote-1.7.2.tgz (Vulnerable Library)

Found in HEAD commit: 928b87c3f458bb28df552e1c49bfeb1231a16bcf

Found in base branch: main

Vulnerability Details

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.

Publish Date: 2021-10-21

URL: CVE-2021-42740

CVSS 3 Score Details (9.8)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42740

Release Date: 2021-10-21

Fix Resolution: shell-quote - 1.7.3

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