## CVE-2021-23406 - High Severity Vulnerability

Vulnerable Libraries - degenerator-2.2.0.tgz, pac-resolver-4.2.0.tgz

degenerator-2.2.0.tgz

Compiles sync functions into async generator functions

Library home page: https://registry.npmjs.org/degenerator/-/degenerator-2.2.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/degenerator/package.json

Dependency Hierarchy: - cloudinary-1.28.0.tgz (Root Library) - proxy-agent-4.0.1.tgz - pac-proxy-agent-4.1.0.tgz - pac-resolver-4.2.0.tgz - :x: **degenerator-2.2.0.tgz** (Vulnerable Library)

pac-resolver-4.2.0.tgz

Generates an asynchronous resolver function from a PAC file

Library home page: https://registry.npmjs.org/pac-resolver/-/pac-resolver-4.2.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/pac-resolver/package.json

Dependency Hierarchy: - cloudinary-1.28.0.tgz (Root Library) - proxy-agent-4.0.1.tgz - pac-proxy-agent-4.1.0.tgz - :x: **pac-resolver-4.2.0.tgz** (Vulnerable Library)

Found in HEAD commit: 707c1e43c37859475e172b5c0fb57cd377dabf94

Vulnerability Details

This affects the package pac-resolver before 5.0.0. This can occur when used with untrusted input, due to unsafe PAC file handling. **NOTE:** The fix for this vulnerability is applied in the node-degenerator library, a dependency written by the same maintainer.

Publish Date: 2021-08-24

URL: CVE-2021-23406

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://github.com/advisories/GHSA-9j49-mfvp-vmhm

Release Date: 2021-08-24

Fix Resolution: pac-resolver -5.0.0, degenerator - 3.0.1

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CVE-2021-23406 (High) detected in degenerator-2.2.0.tgz, pac-resolver-4.2.0.tgz #1672

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