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

... (truncated)

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

... (truncated)

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

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)

[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)
• Request environment cannot be frozen. (@jeremyevans)
• CGI values in the request environment with non-ASCII characters must use ASCII-8BIT encoding. (@jeremyevans)
• Improve SPEC/lint relating to SERVER_NAME, SERVER_PORT and HTTP_HOST. (#1561, @ioquatix)

Added

• rackup supports multiple -r options and will require all arguments. (@jeremyevans)
• Server supports an array of paths to require for the :require option. (@khotta)
• Files supports multipart range requests. (@fatkodima)
• Multipart::UploadedFile supports an IO-like object instead of using the filesystem, using :filename and :io options. (@jeremyevans)
• Multipart::UploadedFile supports keyword arguments :path, :content_type, and :binary in addition to positional arguments. (@jeremyevans)

... (truncated)

• 1741c58 bump version
• 5ccca47 When parsing cookies, only decode the values
• a5e80f0 Bump version.
• b0de37d Remove trailing whitespace.
• 1a784e5 Prepare CHANGELOG for next patch release.
• a0d57d4 Fix to handle same_site option for session pool
• a9b223b Ensure full match. Fixes #1590.
• f4c5645 Double assignment is still needed to prevent an "unused variable" warning
• 5c121dd Revert "Update Thin handler to better handle more options"
• 961d976 Prepare point release.
• Additional commits viewable in compare view

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