CRLF injection vulnerability in actionpack/lib/action_controller/response.rb in Ruby on Rails 2.3.x before 2.3.13 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the Content-Type header.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-3186
• rails/rails@11dafea
• https://bugzilla.redhat.com/show_bug.cgi?id=732156
• http://groups.google.com/group/rubyonrails-security/msg/bbe342e43abaa78c?dmode=source&output=gplain
• http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065137.html
• http://www.debian.org/security/2011/dsa-2301
• 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-2011-3186.yml
• https://groups.google.com/forum/#!topic/rubyonrails-security/b_yTveAph2g
• https://web.archive.org/web/20150201000000*/http://secunia.com/advisories/45921