qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang for an Express application because an __ proto__ key can be used. In many typical Express use cases, an unauthenticated remote attacker can place the attack payload in the query string of the URL that is used to visit the application, such as a[__proto__]=b&a[__proto__]&a[length]=100000000. The fix was backported to qs 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, and 6.2.4 (and therefore Express 4.17.3, which has "deps: qs@6.9.7" in its release description, is not vulnerable).
CVE-2022-24999 - Medium Severity Vulnerability
Vulnerable Library - qs-6.5.2.tgz
A querystring parser that supports nesting and arrays, with a depth limit
Library home page: https://registry.npmjs.org/qs/-/qs-6.5.2.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/qs/package.json
Dependency Hierarchy: - body-parser-1.18.3.tgz (Root Library) - :x: **qs-6.5.2.tgz** (Vulnerable Library)
Found in HEAD commit: f7171220b9f2af587f8405c4a3b7a299d642fe1a
Found in base branches: release-1.0, main
Vulnerability Details
qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang for an Express application because an __ proto__ key can be used. In many typical Express use cases, an unauthenticated remote attacker can place the attack payload in the query string of the URL that is used to visit the application, such as a[__proto__]=b&a[__proto__]&a[length]=100000000. The fix was backported to qs 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, and 6.2.4 (and therefore Express 4.17.3, which has "deps: qs@6.9.7" in its release description, is not vulnerable).
Publish Date: 2022-11-26
URL: CVE-2022-24999
CVSS 3 Score Details (5.5)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2022-24999
Release Date: 2022-11-26
Fix Resolution: qs - 6.2.4,6.3.3,6.4.1,6.5.3,6.6.1,6.7.3,6.8.3,6.9.7,6.10.3