Remote Code Execution (RCE) Affecting shell-quote package, versions <1.7.3
Snyk CVSS
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Test your applications- Snyk ID SNYK-JS-SHELLQUOTE-1766506
- published 22 Oct 2021
- disclosed 22 Oct 2021
- credit Unknown
Introduced: 22 Oct 2021
CVE-2021-42740 Open this link in a new tabHow to fix?
Upgrade shell-quote to version 1.7.3 or higher.
Overview
shell-quote is a package used to quote and parse shell commands.
Affected versions of this package are vulnerable to Remote Code Execution (RCE). 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.