CVE-2012-1099 Cross-site Scripting in actionpack

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script or HTML via the select helper in Ruby on Rails, potentially leading to code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2012-1099?

CVE-2012-1099 is a medium-severity cross-site scripting vulnerability in Rubyonrails Rails, published on 13 Mar 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in actionpack/lib/action_view/helpers/form_options_helper.rb in the select helper in Ruby on Rails 3.0.x before 3.0.12, 3.1.x before 3.1.4, and 3.2.x before 3.2.2 allows remote attackers to inject arbitrary web script or HTML via vectors involving certain generation of OPTION elements within SELECT elements.

Weakness: CWE-79

Which versions are affected by CVE-2012-1099?

6 open source packages ship an affected version, including actionpack. It affects 2 products.

PackageAffectedFixed in
actionpack RubyGemsFrom 3.0.03.0.12
actionpack RubyGemsFrom 3.0.03.0.12
actionpack RubyGemsFrom 3.1.03.1.4
actionpack RubyGemsFrom 3.1.03.1.4
actionpack RubyGemsFrom 3.2.03.2.2
actionpack RubyGemsFrom 3.2.03.2.2

Products include Rubyonrails Rails, Rubyonrails Ruby on Rails.

How do I fix CVE-2012-1099?

Upgrade actionpack to a fixed version for your release line: 3.0.12, 3.1.4 or 3.2.2.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2012-1099 being exploited?

There is no known exploitation of CVE-2012-1099 in the wild and no public exploit code.

All Rubyonrails Rails vulnerabilities

Sources

Also known as DEBIAN-CVE-2012-1099, DSA-2466-1, GHSA-2xjj-5x6h-8vmf.

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