CVE-2020-8161 (High) detected in rack-1.6.4.gem

Vulnerable Library - rack-1.6.4.gem

Rack provides a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single method call.

Also see http://rack.github.io/.

Library home page: https://rubygems.org/gems/rack-1.6.4.gem

Dependency Hierarchy:

• sinatra-1.4.6.gem (Root Library)
  • ❌ rack-1.6.4.gem (Vulnerable Library)

Found in HEAD commit: 4b7a8d7d7384aa6a27d6309c35ade0916edae7ed

Found in base branch: master

Vulnerability Details

A directory traversal vulnerability exists in rack < 2.2.0 that allows an attacker perform directory traversal vulnerability in the Rack::Directory app that is bundled with Rack which could result in information disclosure.

Publish Date: 2020-07-02

URL: CVE-2020-8161

CVSS 3 Score Details (8.6)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None

Suggested Fix

Type: Upgrade version

Release Date: 2020-07-02

Fix Resolution: 2.2.0,2.1.3