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| author | Aaron Patterson <aaron.patterson@gmail.com> | 2016-01-18 13:51:02 -0800 |
|---|---|---|
| committer | Aaron Patterson <aaron.patterson@gmail.com> | 2016-01-22 15:02:46 -0800 |
| commit | 4642d68d8021893c69bfd16ed6e926ae03a6d777 (patch) | |
| tree | be212b3810e264ca10cdf015d576773fa27f27ed /activesupport/lib/active_support/callbacks.rb | |
| parent | b7758b40fc035a47f6843158155606d455314c42 (diff) | |
| download | rails-4642d68d8021893c69bfd16ed6e926ae03a6d777.tar.gz rails-4642d68d8021893c69bfd16ed6e926ae03a6d777.tar.bz2 rails-4642d68d8021893c69bfd16ed6e926ae03a6d777.zip | |
Eliminate instance level writers for class accessors
Instance level writers can have an impact on how the Active Model /
Record objects are saved. Specifically, they can be used to bypass
validations. This is a problem if mass assignment protection is
disabled and specific attributes are passed to the constructor.
CVE-2016-0753
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index bf560ec1fa..e6baddf5db 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -71,7 +71,7 @@ module ActiveSupport # halt the entire callback chain and display a deprecation message. # If false, callback chains will only be halted by calling +throw :abort+. # Defaults to +true+. - mattr_accessor(:halt_and_display_warning_on_return_false) { true } + mattr_accessor(:halt_and_display_warning_on_return_false, instance_writer: false) { true } # Runs the callbacks for the given event. # @@ -742,7 +742,7 @@ module ActiveSupport options = names.extract_options! names.each do |name| - class_attribute "_#{name}_callbacks" + class_attribute "_#{name}_callbacks", instance_writer: false set_callbacks name, CallbackChain.new(name, options) module_eval <<-RUBY, __FILE__, __LINE__ + 1 |