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.
:heavy_check_mark: 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.
CVE-2021-22904 - High Severity Vulnerability
Vulnerable Library - actionpack-5.2.4.3.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-5.2.4.3.gem
Dependency Hierarchy: - factory_bot_rails-5.1.1.gem (Root Library) - railties-5.2.4.3.gem - :x: **actionpack-5.2.4.3.gem** (Vulnerable Library)
Found in base branch: development
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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