The decode_credentials method in
actionpack/lib/action_controller/metal/http_authentication.rb in Ruby
on Rails 3.x 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 to an
application that uses a with_http_digest helper method, as
demonstrated by the authenticate_or_request_with_http_digest method.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[rubyonrails-security] 20120726 Ruby on Rails DoS Vulnerability in authenticate_or_request_with_http_digest (CVE-2012-3424)
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disclosed, or updated in CVE.
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