Ruby on Rails 2.1 before 2.1.3 and 2.2.x before 2.2.2 does not verify tokens for requests with certain content types, which allows remote attackers to bypass cross-site request forgery (CSRF) protection for requests to applications that rely on this protection, as demonstrated using text/plain.
groups.google.com/group/rubyonrails-security/browse_thread/thread/d741ee286e36e301?hl=en
lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
pseudo-flaw.net/content/web-browsers/form-data-encoding-roundup
weblog.rubyonrails.org/2008/11/18/potential-circumvention-of-csrf-protection-in-rails-2-1
www.openwall.com/lists/oss-security/2009/11/28/1
www.openwall.com/lists/oss-security/2009/12/02/2
access.redhat.com/security/cve/CVE-2008-7248
bugzilla.redhat.com/show_bug.cgi?id=544329
github.com/rails/rails
github.com/rails/rails/commit/099a98e9b7108dae3e0f78b207e0a7dc5913bd1a
github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2008-7248.yml
groups.google.com/group/rubyonrails-security/browse_thread/thread/d741ee286e36e301?hl=en
lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
nvd.nist.gov/vuln/detail/CVE-2008-7248
pseudo-flaw.net/content/web-browsers/form-data-encoding-roundup
web.archive.org/web/20090906010200/https://www.vupen.com/english/advisories/2009/2544
weblog.rubyonrails.org/2008/11/18/potential-circumvention-of-csrf-protection-in-rails-2-1
www.openwall.com/lists/oss-security/2009/11/28/1
www.openwall.com/lists/oss-security/2009/12/02/2
www.rorsecurity.info/journal/2008/11/19/circumvent-rails-csrf-protection.html