Cross-site scripting (XSS) vulnerability in the strip_tags function in Ruby on Rails before 2.2.s, and 2.3.x before 2.3.5, allows remote attackers to inject arbitrary web script or HTML via vectors involving non-printing ASCII characters, related to HTML::Tokenizer and actionpack/lib/action_controller/vendor/html-scanner/html/node.rb.

References

• https://nvd.nist.gov/vuln/detail/CVE-2009-4214
• GHSA-9p3v-wf2w-v29c
• http://github.com/rails/rails/commit/bfe032858077bb2946abe25e95e485ba6da86bd5
• http://groups.google.com/group/rubyonrails-security/browse_thread/thread/4d4f71f2aef4c0ab?pli=1
• http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
• http://secunia.com/advisories/37446
• http://secunia.com/advisories/38915
• http://support.apple.com/kb/HT4077
• http://weblog.rubyonrails.org/2009/11/30/ruby-on-rails-2-3-5-released
• http://www.debian.org/security/2011/dsa-2260
• http://www.debian.org/security/2011/dsa-2301
• http://www.openwall.com/lists/oss-security/2009/11/27/2
• http://www.openwall.com/lists/oss-security/2009/12/08/3
• http://www.securityfocus.com/bid/37142
• http://www.securitytracker.com/id?1023245
• http://www.vupen.com/english/advisories/2009/3352
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails/CVE-2009-4214.yml