WS-2017-0274 (Medium) detected in rack-1.5.5.gem

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WS-2017-0274 - Medium Severity Vulnerability

Vulnerable Library - rack-1.5.5.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.com/.

Library home page: https://rubygems.org/gems/rack-1.5.5.gem

Dependency Hierarchy:

• rails-4.1.0.gem (Root Library)
  • actionmailer-4.1.0.gem
    • actionpack-4.1.0.gem
      • rack-test-0.6.3.gem
        • ❌ rack-1.5.5.gem (Vulnerable Library)

Found in HEAD commit: 5a413d9b2f9c78839525a25524a6091e2a91db92

Found in base branch: master

Vulnerability Details

Affected versions on the Rack package (1.4.0 before 1.6.0), are vulnerable to IP spoofing via X-Forwarded-For and Client-IP headers.

Publish Date: 2014-06-23

URL: WS-2017-0274

CVSS 3 Score Details (6.5)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: rack/rack@7a8efc2

Release Date: 2014-06-23

Fix Resolution: 1.6.0