SQL Injection Detection Gem

Overview

The sql_injection_detection gem is a lightweight Ruby library designed to detect potential SQL injection attempts in input strings. It can be used to enhance the security of Ruby on Rails applications or any Ruby-based projects by identifying and flagging suspicious input patterns that are commonly used in SQL injection attacks.

Features

• Detects common SQL injection patterns, such as:
  • Single quotes and encoded characters
  • SQL comments (--)
  • SQL keywords like UNION, SELECT, DROP, INSERT, and DELETE
  • Boolean-based injections using OR and AND
• Simple API: one method call to check for SQL injection
• Lightweight and easy to integrate into existing projects

Installation

Add this line to your application's Gemfile:

gem 'sql_injection_detection'

And then execute:

bundle install

Or install it yourself as:

gem install sql_injection_detection

Usage

You can use the gem by requiring it in your project and calling the SqlInjectionDetection::Checker.check method with the input string you want to validate:

require 'sql_injection_detection'

input = "' OR 1=1 --"
if SqlInjectionDetection::Checker.check(input)
  puts "Potential SQL injection detected!"
else
  puts "Input is safe."
end

Example Usage

input = "SELECT * FROM users WHERE username = 'admin' --"
if SqlInjectionDetection::Checker.check(input)
  puts "Warning: SQL Injection attempt detected!"
else
  puts "Input is safe."
end

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/JakubSchwenkbeck/SQL-Injection-Detector-GEM. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Acknowledgements

This project was created to provide a simple yet effective tool for detecting SQL injection vulnerabilities in Ruby applications. Contributions and feedback are greatly appreciated!