CVE-2023-27539 (High) detected in rack-1.6.9.gem

[mend-bolt-for-github]

CVE-2023-27539 - High Severity Vulnerability

Vulnerable Library - rack-1.6.9.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-1.6.9.gem

Path to dependency file: /vendor/github.com/hashicorp/vault/website/Gemfile.lock

Path to vulnerable library: /vendor/github.com/hashicorp/vault/website/Gemfile.lock

Dependency Hierarchy:

• middleman-hashicorp-0.3.30.gem (Root Library)
  • middleman-3.4.1.gem
    • middleman-sprockets-3.5.0.gem
      • sprockets-sass-1.3.1.gem
        • sprockets-2.12.4.gem
          • ❌ rack-1.6.9.gem (Vulnerable Library)

Found in HEAD commit: 9060713df80212ee5546b36d1083fb607520eb0b

Found in base branch: master

Vulnerability Details

There is a denial of service vulnerability in the header parsing component of Rack. Carefully crafted input can cause header parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse headers using Rack (virtually all Rails applications) are impacted. The issue is fixed versions 2.2.6.4 and 3.0.6.1

Publish Date: 2023-03-03

URL: CVE-2023-27539

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • 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://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466

Release Date: 2023-03-03

Fix Resolution: rack - 2.2.6.4,3.0.6.1

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[mend-bolt-for-github]

✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-bolt-for-github]

ℹ️ This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.