activerecord/lib/active_record/relation/query_methods.rb in Active Record in Ruby on Rails 4.0.x before 4.0.9 and 4.1.x before 4.1.5 allows remote attackers to bypass the strong parameters protection mechanism via crafted input to an application that makes create_with calls.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-3514
• http://openwall.com/lists/oss-security/2014/08/18/10
• http://rhn.redhat.com/errata/RHSA-2014-1102.html
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2014-3514.yml
• https://groups.google.com/forum/#!msg/rubyonrails-security/M4chq5Sb540/CC1Fh0Y_NWwJ
• https://groups.google.com/forum/message/raw?msg=rubyonrails-security/M4chq5Sb540/CC1Fh0Y_NWwJ