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Category:   Application (Generic)  >   Rails Vendors:   rubyforge.org
Ruby on Rails Input Validation Flaw in Form Helpers Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1022824
SecurityTracker URL:  http://securitytracker.com/id/1022824
CVE Reference:   CVE-2009-3009   (Links to External Site)
Date:  Sep 4 2009
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 2.x prior to 2.2.3, 2.3.4
Description:   A vulnerability was reported in Ruby on Rails. A remote user can conduct cross-site scripting attacks.

The escaping code for the form helpers does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted Unicode string that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Ruby on Rails software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Brian Mastenbrook reported this vulnerability.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Ruby on Rails software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has issued a fix (2.2.3, 2.3.4).

The vendor's advisory is available at:

http://weblog.rubyonrails.org/2009/9/4/xss-vulnerability-in-ruby-on-rails

Vendor URL:  weblog.rubyonrails.org/2009/9/4/xss-vulnerability-in-ruby-on-rails (Links to External Site)
Cause:   Input validation error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Date:  Fri, 4 Sep 2009 09:54:20 -0400
Subject:  Ruby on Rails


http://weblog.rubyonrails.org/2009/9/4/xss-vulnerability-in-ruby-on-rails

CVE-2009-3009

 
 


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