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TITLE:
Ruby on Rails "strip_tags" Cross-Site Scripting Vulnerability

SECUNIA ADVISORY ID:
SA37446

VERIFY ADVISORY:
http://secunia.com/advisories/37446/

DESCRIPTION:
A vulnerability has been reported in Ruby on Rails, which can be
exploited by malicious people to conduct cross-site scripting
attacks.

The vulnerability is caused due to the "strip_tags" function not
properly removing tags starting with non-printable characters, which
can be exploited to execute arbitrary HTML and script code in a
user's browser session in context of an affected site.

SOLUTION:
Fixed in the GIT repository.
http://github.com/rails/rails/commit/bfe032858077bb2946abe25e95e485ba6da86bd5

Reportedly, the fixed version 2.3.5 will be released shortly.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Gabe da Silveira.

ORIGINAL ADVISORY:
http://weblog.rubyonrails.org/2009/11/30/ruby-on-rails-2-3-5-released

http://groups.google.com/group/rubyonrails-security/browse_thread/thread/4d4f71f2aef4c0ab#

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