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Category:   Application (Generic)  >   Rails Vendors:   rubyforge.org
Ruby on Rails Input Validation Flaw in Action Pack Parameter Parsing Lets Remote Users Bypass Authentication, Inject SQL Commands, Execute Arbitrary Code, and Deny Service
SecurityTracker Alert ID:  1027961
SecurityTracker URL:  http://securitytracker.com/id/1027961
CVE Reference:   CVE-2013-0156, CVE-2013-0175   (Links to External Site)
Updated:  Jan 12 2013
Original Entry Date:  Jan 9 2013
Impact:   Denial of service via network, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.x and 3.x prior to versions 2.3.15, 3.0.19, 3.1.10, and 3.2.11
Description:   A vulnerability was reported in Ruby on Rails. A remote user can bypass authentication systems, inject SQL commands, inject and execute arbitrary code, and cause denial of service conditions.

The parameter parsing code does not properly cast values from strings to certain data types, which may allow a remote user to compromise a target Rails application [CVE-2013-0156].

The specific impact depends on the target Rails application.

The multi_xml ruby gem is also affected [CVE-2013-0175].

Ben Murphy, Magnus Holm, Felix Wilhelm, Darcy Laycock, Jonathan Rudenberg, Bryan Helmkamp, Benoist Claassen, and Charlie Somerville reported this vulnerability.

Impact:   A remote user can bypass authentication systems, inject SQL commands, inject and execute arbitrary code, and cause denial of service conditions.
Solution:   The vendor has issued a fix (2.3.15, 3.0.19, 3.1.10, and 3.2.11).

The vendor's advisories are available at:

http://weblog.rubyonrails.org/2013/1/8/Rails-3-2-11-3-1-10-3-0-19-and-2-3-15-have-been-released/
https://groups.google.com/forum/#!topic/rubyonrails-security/61bkgvnSGTQ

A fix for the multi_xml gem is available at:

https://rubygems.org/gems/multi_xml/versions/0.5.2

Vendor URL:  weblog.rubyonrails.org/2013/1/8/Rails-3-2-11-3-1-10-3-0-19-and-2-3-15-have-been-released/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jan 10 2013 (Red Hat Issues Fix) Ruby on Rails Input Validation Flaw in Action Pack Parameter Parsing Lets Remote Users Bypass Authentication, Inject SQL Commands, Execute Arbitrary Code, and Deny Service
Red Hat has issued a fix for Red Hat OpenShift Enterprise.
Jan 10 2013 (Red Hat Issues Fix) Ruby on Rails Input Validation Flaw in Action Pack Parameter Parsing Lets Remote Users Bypass Authentication, Inject SQL Commands, Execute Arbitrary Code, and Deny Service
Red Hat has issued a fix for Red Hat Subscription Asset Manager.
Jan 11 2013 (Red Hat Issues Fix) Ruby on Rails Input Validation Flaw in Action Pack Parameter Parsing Lets Remote Users Bypass Authentication, Inject SQL Commands, Execute Arbitrary Code, and Deny Service
Red Hat has issued a fix for Red Hat CloudForms.
Feb 5 2013 (Apple Issues Fix) Ruby on Rails Input Validation Flaw in Action Pack Parameter Parsing Lets Remote Users Bypass Authentication, Inject SQL Commands, Execute Arbitrary Code, and Deny Service
Apple has issued a fix for OS X Server.



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