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Rails CVE-2012-2660.
git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/1.4-stable@9767 e93f8b46-1217-0410-a6f0-8f06a7374b81
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@ -85,4 +85,30 @@ module ActionController
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end
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end
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end
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# CVE-2012-2660
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# https://groups.google.com/group/rubyonrails-security/browse_thread/thread/f1203e3376acec0f
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class Request
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protected
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# Remove nils from the params hash
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def deep_munge(hash)
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hash.each_value do |v|
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case v
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when Array
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v.grep(Hash) { |x| deep_munge(x) }
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when Hash
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deep_munge(v)
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end
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end
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keys = hash.keys.find_all { |k| hash[k] == [nil] }
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keys.each { |k| hash[k] = nil }
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hash
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end
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def parse_query(qs)
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deep_munge(super)
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end
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end
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end
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