RubySec

Providing security resources for the Ruby community

CVE-2012-3424 (actionpack): CVE-2012-3424 rubygem-actionpack: DoS vulnerability in authenticate_or_request_with_http_digest

ADVISORIES

GEM

actionpack

FRAMEWORK

rails

SEVERITY

CVSS v2: 5.0 (Medium)

UNAFFECTED VERSIONS

  • >= 2.3.5, <= 2.3.14

PATCHED VERSIONS

  • ~> 3.0.16
  • ~> 3.1.7
  • >= 3.2.7

DESCRIPTION

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.