actionpack Improper Authentication vulnerability

The decodecredentials method in actionpack/lib/actioncontroller/metal/httpauthentication.rb in Ruby on Rails before 3.0.16, 3.1.x before 3.1.7, and 3.2.x before 3.2.7 converts Digest Authentication strings to symbols, which allows remote attackers to cause a denial of service by leveraging access...