Directory traversal vulnerability in actionpack/lib/action_dispatch/middleware/static.rb in Action Pack in Ruby on Rails 3.x before 3.2.21, 4.0.x before 4.0.12, 4.1.x before 4.1.8, and 4.2.x before 4.2.0.beta4, when serve_static_assets is enabled, allows remote attackers to determine the existence of files outside the application root via vectors involving a (backslash) character, a similar issue to CVE-2014-7818.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7829
Reference (s):
- BID:71183
- URL: http://www.securityfocus.com/bid/71183
- https://puppet.com/security/cve/cve-2014-7829
- MLIST:[rubyonrails-security] 20141117 [CVE-2014-7829] Arbitrary file existence disclosure in Action Pack
- URL: https://groups.google.com/forum/message/raw?msg=rubyonrails-security/rMTQy4oRCGk/loS_CRS8mNEJ