The actionpack ruby gem before 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6 suffers from a possible denial of service vulnerability in the Token Authentication logic in Action Controller due to a too permissive regular expression. Impacted code uses `authenticate_or_request_with_http_token` or `authenticate_with_http_token` for request authentication.
CVE-2021-22904 - High Severity Vulnerability
Vulnerable Library - actionpack-5.0.2.gem
Web apps on Rails. Simple, battle-tested conventions for building and testing MVC web applications. Works with any Rack-compatible server.
Library home page: https://rubygems.org/gems/actionpack-5.0.2.gem
Path to dependency file: /Gemfile.lock
Path to vulnerable library: /Gemfile.lock
Dependency Hierarchy: - dotenv-rails-2.2.0.gem (Root Library) - railties-5.0.2.gem - :x: **actionpack-5.0.2.gem** (Vulnerable Library)
Found in base branch: master
Vulnerability Details
The actionpack ruby gem before 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6 suffers from a possible denial of service vulnerability in the Token Authentication logic in Action Controller due to a too permissive regular expression. Impacted code uses `authenticate_or_request_with_http_token` or `authenticate_with_http_token` for request authentication.
Publish Date: 2021-06-11
URL: CVE-2021-22904
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
Release Date: 2021-06-11
Fix Resolution: actionpack - 5.2.4.6,5.2.6,6.0.3.7,6.1.3.2
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