GHSA-29gr-w57f-rpfw

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GHSA-29gr-w57f-rpfw

Summary: actionpack vulnerable to Path Traversal

Details: Directory traversal vulnerability in `actionpack/lib/action_dispatch/middleware/static.rb` in Action Pack in Ruby on Rails 3.x before 3.2.20, 4.0.x before 4.0.11, 4.1.x before 4.1.7, and 4.2.x before 4.2.0.beta3, when `serve_static_assets` is enabled, allows remote attackers to determine the existence of files outside the application root via a `/..%2F` sequence.

References: https://nvd.nist.gov/vuln/detail/CVE-2014-7818, https://github.com/advisories/GHSA-29gr-w57f-rpfw, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2014-7818.yml, https://groups.google.com/forum/#!topic/rubyonrails-security/dCp7duBiQgo, https://groups.google.com/forum/message/raw?msg=rubyonrails-security/dCp7duBiQgo/v_R_8PFs5IwJ, https://puppet.com/security/cve/cve-2014-7829, http://lists.opensuse.org/opensuse-updates/2014-11/msg00112.html