🚨 [security] Update rack-cors: 1.0.2 → 1.0.6 (patch)

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🚨 Your version of rack-cors has known security vulnerabilities 🚨

Advisory: CVE-2019-18978
Disclosed: November 15, 2019
URL: https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d

rack-cors directory traversal via path

An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem
before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources
because resource matching does not ensure that pathnames are in a canonical format.

🚨 We recommend to merge and deploy this update as soon as possible! 🚨

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ rack-cors (1.0.2 → 1.0.6) · Repo · Changelog

Release Notes

1.0.6 (from changelog)

Changed

• Use Rack::Utils.escape to make compat with Rack 1.6.0

1.0.5 (from changelog)

Changed

• Update Gem spec to require rack >= 1.6.0

1.0.4 (from changelog)

Security

• Escape and resolve path before evaluating resource rules (thanks to Colby Morgan)

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 30 commits:

• Use escape instead of escape_path
• Up rack requirement
• Updating Gems to hopefully get rid of alerts in GH
• Reduce default max_age to a more sensible value
• Unescape and resolve paths before resource checks
• [CI] Test against Ruby 2.6
• Version 1.0.3
• Clean up gemspec
• Update rack gem
• Update Rails4 example
• Remove unnecessary :require option from Gemfile example
• Add an :if example to the README (based on https://github.com/cyu/rack-cors/issues/70#issuecomment-75392790)
• Remove CONTENT_TYPE constant
• remove content-type header from preflight response
• Update rails4 example to 4.2.10
• Updated deps to fix more vulnerabilities
• Updated Rails4 deps to fix vulnerabilities
• Updated rack example
• Removing Rails 3 example
• Updating dev dependencies
• Test PATCH support
• Add test for arrays of upstream Vary headers
• Handle arrays of vary headers
• fix readme typo
• Update README.md with ruby 1.9+ hash syntax
• [CI] Test against Ruby 2.4 and 2.5
• Add test coverage for logger
• Fixing some grammerz
• Rename CHANGELOG to CHANGELOG.md
• Update changelog

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