CVE-2022-32209 (Medium) detected in rails-html-sanitizer-1.4.2.gem

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CVE-2022-32209 - Medium Severity Vulnerability

Vulnerable Library - rails-html-sanitizer-1.4.2.gem

HTML sanitization for Rails applications

Library home page: https://rubygems.org/gems/rails-html-sanitizer-1.4.2.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /home/wss-scanner/.gem/ruby/2.7.0/cache/rails-html-sanitizer-1.4.2.gem

Dependency Hierarchy:

• actionview-6.0.5.gem (Root Library)
  • ❌ rails-html-sanitizer-1.4.2.gem (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Possible XSS Vulnerability in Rails::Html::SanitizerThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.This vulnerability has been assigned the CVE identifier CVE-2022-32209.Versions Affected: ALLNot affected: NONEFixed Versions: v1.4.3## ImpactA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both select and style elements.Code is only impacted if allowed tags are being overridden. This may be done via application configuration:ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = ["select", "style"]see https://guides.rubyonrails.org/configuring.html#configuring-action-viewOr it may be done with a :tags option to the Action View helper sanitize:<%= sanitize @comment.body, tags: ["select", "style"] %>see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitizeOr it may be done with Rails::Html::SafeListSanitizer directly:ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = ["select", "style"]orruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: ["select", "style"])All users overriding the allowed tags by any of the above mechanisms to include both "select" and "style" should either upgrade or use one of the workarounds immediately.## ReleasesThe FIXED releases are available at the normal locations.## WorkaroundsRemove either select or style from the overridden allowed tags.## CreditsThis vulnerability was responsibly reported by windshock.

Publish Date: 2022-06-24

URL: CVE-2022-32209

CVSS 3 Score Details (6.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
• 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: https://discuss.rubyonrails.org/t/cve-2022-32209-possible-xss-vulnerability-in-rails-sanitizer/80800

Release Date: 2022-06-24

Fix Resolution: rails-html-sanitizer - 1.4.3