[Security] Bump rack from 2.2.2 to 2.2.3

[dependabot-preview]

Bumps rack from 2.2.2 to 2.2.3. This update includes a security fix.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

Percent-encoded cookies can be used to overwrite existing prefixed cookie names It is possible to forge a secure or host-only cookie prefix in Rack using an arbitrary cookie write by using URL encoding (percent-encoding) on the name of the cookie. This could result in an application that is dependent on this prefix to determine if a cookie is safe to process being manipulated into processing an insecure or cross-origin request. This vulnerability has been assigned the CVE identifier CVE-2020-8184.

Versions Affected: rack < 2.2.3, rack < 2.1.4 Not affected: Applications which do not rely on __Host- and __Secure- prefixes to determine if a cookie is safe to process Fixed Versions: rack >= 2.2.3, rack >= 2.1.4

Impact

An attacker may be able to trick a vulnerable application into processing an insecure (non-SSL) or cross-origin request if they can gain the ability to write arbitrary cookies that are sent to the application.

Workarounds

... (truncated)

Patched versions: ~> 2.1.4; >= 2.2.3 Unaffected versions: none

Changelog

Sourced from rack's changelog.

Changelog

All notable changes to this project will be documented in this file. For info on how to format all future additions to this file please reference Keep A Changelog.

[3.0.0] - Unreleased

Changed

• BREAKING CHANGE: Require status to be an Integer. (#1662, @olleolleolle)
• Relax validations around Rack::Request#host and Rack::Request#hostname. (#1606, @pvande)
• Removed antiquated handlers: FCGI, LSWS, SCGI, Thin. (#1658, @ioquatix)
• Removed options from Rack::Builder.parse_file and Rack::Builder.load_file. (#1663, @ioquatix)

Fixed

• Fix using Rack::Session::Cookie with coder: Rack::Session::Cookie::Base64::{JSON,Zip}. (#1666, @jeremyevans)
• Avoid NoMethodError when accessing Rack::Session::Cookie without requiring delegate first. (#1610, @onigra)
• Handle cookies with values that end in '=' (#1645, @lukaso)

Commits

• 1741c58 bump version
• 5ccca47 When parsing cookies, only decode the values
• See full diff in compare view

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[coveralls]

Coverage remained the same at 100.0% when pulling 0693799 on dependabot/bundler/rack-2.2.3 into 8ab77f0 on master.