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.
CVE-2021-42740 - High Severity Vulnerability
quote and parse shell commands
Library home page: https://registry.npmjs.org/shell-quote/-/shell-quote-1.7.2.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/shell-quote/package.json
Dependency Hierarchy: - cli-plugin-babel-4.5.13.tgz (Root Library) - cli-shared-utils-4.5.13.tgz - launch-editor-2.2.1.tgz - :x: **shell-quote-1.7.2.tgz** (Vulnerable Library)
Found in base branch: master
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
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.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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