CVE Vulnerability

CVE-2021-42740

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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/substack/node-shell-quote/commit/5799416ed454aa4ec9afafc895b4e31760ea1abe Patch Third Party Advisory
https://www.npmjs.com/package/shell-quote Vendor Advisory
https://github.com/substack/node-shell-quote/blob/master/CHANGELOG.md#173 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:shell-quote_project:shell-quote:*:*:*:*:*:node.js:*:*
Information

Published : 2021-10-21 03:15

Updated : 2021-10-28 01:54

NVD link : CVE-2021-42740

Mitre link : CVE-2021-42740

Products Affected
No products.
CWE
CWE-77