[Security] Bump rack from 2.1.2 to 2.1.4

[dependabot-preview[bot]]

Bumps rack from 2.1.2 to 2.1.4. This update includes security fixes.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

Directory traversal in Rack::Directory app bundled with Rack There was a possible directory traversal vulnerability in the Rack::Directory app that is bundled with Rack.

Versions Affected: rack < 2.2.0 Not affected: Applications that do not use Rack::Directory. Fixed Versions: 2.1.3, >= 2.2.0

Impact

If certain directories exist in a director that is managed by Rack::Directory, an attacker could, using this vulnerability, read the contents of files on the server that were outside of the root specified in the Rack::Directory initializer.

Workarounds

Until such time as the patch is applied or their Rack version is upgraded, we recommend that developers do not use Rack::Directory in their

Patched versions: ~> 2.1.3; >= 2.2.0 Unaffected versions: none

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

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)
• HMAC argument for Rack::Session::Cookie doesn't accept a class constant anymore, but only a string recognized by OpenSSL (e.g. "SHA256") or compatible instance (e.g. OpenSSL::Digest.new("SHA256")) (#1676, @bdewater)
• Rack::HTTP_VERSION has been removed and the HTTP_VERSION env setting is no longer set in the CGI and Webrick handlers . (#970, @jeremyevans)
• Rack::Request#[] and #[]= now warn even in non-verbose mode. (#1277, @jeremyevans)
• Decrease default allowed parameter recursion level from 100 to 32. (#1640, @jeremyevans)

Fixed

• TempfileReaper now deletes temp files if application raises an exception. (#1679, @jeremyevans)
• 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)

[2.2.3] - 2020-06-15

Security

• [CVE-2020-8184] Do not allow percent-encoded cookie name to override existing cookie names. BREAKING CHANGE: Accessing cookie names that require URL encoding with decoded name no longer works. (@fletchto99)

[2.2.2] - 2020-02-11

Fixed

• Fix incorrect Rack::Request#host value. (#1591, @ioquatix)
• Revert Rack::Handler::Thin implementation. (#1583, @jeremyevans)
• Double assignment is still needed to prevent an "unused variable" warning. (#1589, @kamipo)
• Fix to handle same_site option for session pool. (#1587, @kamipo)

[2.2.1] - 2020-02-09

Fixed

• Rework Rack::Request#ip to handle empty forwarded_for. (#1577, @ioquatix)

[2.2.0] - 2020-02-08

SPEC Changes

• rack.session request environment entry must respond to to_hash and return unfrozen Hash. (@jeremyevans)

Commits

• 5280870 bump version
• a243510 When parsing cookies, only decode the values
• e7ba1b0 fix directory listing
• b9b8652 bump version
• 775c836 adding a test for directory traversal
• dddb7ad Use Dir.entries instead of Dir[glob] to prevent user-specified glob metachara...
• See full diff in compare view

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[dependabot-preview[bot]]

Looks like rack is up-to-date now, so this is no longer needed.