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sinatra/rack-protection/README.md
Jordan Owens cd5028b5c9 Add cookie tossing protection 
Mitigate malicious session cookies set on a subdomain from
being read by the parent domain.
2016-07-30 19:04:44 -04:00

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Rack::Protection

Build Status

This gem protects against typical web attacks. Should work for all Rack apps, including Rails.

Usage

Use all protections you probably want to use:

# config.ru
require 'rack/protection'
use Rack::Protection
run MyApp

Skip a single protection middleware:

# config.ru
require 'rack/protection'
use Rack::Protection, :except => :path_traversal
run MyApp

Use a single protection middleware:

# config.ru
require 'rack/protection'
use Rack::Protection::AuthenticityToken
run MyApp

Prevented Attacks

Cross Site Request Forgery

Prevented by:

  • Rack::Protection::AuthenticityToken (not included by use Rack::Protection)
  • Rack::Protection::FormToken (not included by use Rack::Protection)
  • Rack::Protection::JsonCsrf
  • Rack::Protection::RemoteReferrer (not included by use Rack::Protection)
  • Rack::Protection::RemoteToken
  • Rack::Protection::HttpOrigin

Cross Site Scripting

Prevented by:

  • Rack::Protection::EscapedParams (not included by use Rack::Protection)
  • Rack::Protection::XSSHeader (Internet Explorer and Chrome only)
  • Rack::Protection::ContentSecurityPolicy

Clickjacking

Prevented by:

  • Rack::Protection::FrameOptions

Directory Traversal

Prevented by:

  • Rack::Protection::PathTraversal

Session Hijacking

Prevented by:

  • Rack::Protection::SessionHijacking

Cookie Tossing

Prevented by:

  • Rack::Protection::CookieTossing (not included by use Rack::Protection)

IP Spoofing

Prevented by:

  • Rack::Protection::IPSpoofing

Helps to protect against protocol downgrade attacks and cookie hijacking

Prevented by:

  • Rack::Protection::StrictTransport (not included by use Rack::Protection)

Installation

gem install rack-protection

Instrumentation

Instrumentation is enabled by passing in an instrumenter as an option.

use Rack::Protection, instrumenter: ActiveSupport::Notifications

The instrumenter is passed a namespace (String) and environment (Hash). The namespace is 'rack.protection' and the attack type can be obtained from the environment key 'rack.protection.attack'.