The template selection functionality in actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.10 and 3.1.x before 3.1.0.rc6 does not properly handle glob characters, which allows remote attackers to render arbitrary views via a crafted URL, related to a "filter skipping vulnerability."

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-2929
• rails/rails@5f94b93
• https://bugzilla.redhat.com/show_bug.cgi?id=731432
• http://groups.google.com/group/rubyonrails-security/msg/cbbbba6e4f7eaf61?dmode=source&output=gplain
• http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065109.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065212.html
• http://weblog.rubyonrails.org/2011/8/16/ann-rails-3-1-0-rc6
• http://www.openwall.com/lists/oss-security/2011/08/17/1
• http://www.openwall.com/lists/oss-security/2011/08/19/11
• http://www.openwall.com/lists/oss-security/2011/08/20/1
• http://www.openwall.com/lists/oss-security/2011/08/22/13
• http://www.openwall.com/lists/oss-security/2011/08/22/14
• http://www.openwall.com/lists/oss-security/2011/08/22/5
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2011-2929.yml
• https://rubyonrails.org/2011/8/16/ann-rails-3-1-0-rc6