Package Instance

XSS Vulnerability in simple_format helper
The simple_format helper converts user supplied text into html text which is intended to be safe for display. A change made to the implementation of this helper means that any user provided HTML attributes will not be escaped correctly. As a result of this error, applications which pass user-controlled data to be included as html attributes will be vulnerable to an XSS attack.

Improper Input Validation
The template selection functionality in actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.10 and 3.1.x before 3.1.0.rc6 does not properly handle glob characters, which allows remote attackers to render arbitrary views via a crafted URL, related to a "filter skipping vulnerability."

actionpack Cross-site Scripting vulnerability
Cross-site scripting (XSS) vulnerability in `actionpack/lib/action_view/helpers/sanitize_helper.rb` in the `strip_tags` helper in Ruby on Rails before 2.3.16, 3.0.x before 3.0.17, 3.1.x before 3.1.8, and 3.2.x before 3.2.8 allows remote attackers to inject arbitrary web script or HTML via malformed HTML markup.

actionpack Improper Authentication vulnerability
The `decode_credentials` method in `actionpack/lib/action_controller/metal/http_authentication.rb` in Ruby on Rails before 3.0.16, 3.1.x before 3.1.7, and 3.2.x before 3.2.7 converts Digest Authentication strings to symbols, which allows remote attackers to cause a denial of service by leveraging access to an application that uses a `with_http_digest` helper method, as demonstrated by the `authenticate_or_request_with_http_digest` method.

actionpack allows remote attackers to bypass database-query restrictions, perform NULL checks via crafted request
`actionpack/lib/action_dispatch/http/request.rb` in Ruby on Rails before 3.0.14, 3.1.x before 3.1.6, and 3.2.x before 3.2.6 does not properly consider differences in parameter handling between the Active Record component and the Rack interface, which allows remote attackers to bypass intended database-query restrictions and perform NULL checks via a crafted request, as demonstrated by certain `['xyz', nil]` values, a related issue to CVE-2012-2660.

XSS vulnerability in sanitize_css in Action Pack
Carefully crafted text can bypass the sanitization provided in the `sanitize_css` method in Action Pack.

SQL Injection
Ruby on Rails contains a flaw related to the way ActiveRecord handles parameters in conjunction with the way Rack parses query parameters. This issue may allow an attacker to inject arbitrary `IS NULL` clauses in to application SQL queries. This may also allow an attacker to have the SQL query check for `NULL` in arbitrary places.

Multiple vulnerabilities in parameter parsing in Action Pack
There are multiple weaknesses in the parameter parsing code for Ruby on Rails which allows attackers to bypass authentication systems, inject arbitrary SQL, inject and execute arbitrary code, or perform a DoS attack on a Rails application.