Rails SQL Injection with LIKE

http://sclarita.com/?s=경산콜걸〖카톡: Mo46〗〖m oo27.c0M〗출장샵콜걸출장오피Y⇠⇠2019-02-19-03-45경산╝AIJ⊿콜걸만남모텔출장오피▨콜걸강추⇍출장최고시]경산 SQL ‘LIKE’ injection is a form of denial-of-service attack where an end-user adds wildcards to a SQL query that uses the ‘LIKE’ keyword. This greatly increases the time it takes to run the query. If your Rails application allows user searching using email:

https://www.eclipse-sid.es/4890-dts98646-nervión-como-conocer-gente.html users = User.includes(:profile).where("profiles.email LIKE ?", "#{term}%“).all

A user can include percent signs in their search and vastly increase the query duration, slowing down the database.

rencontre sans inscription What are the risks?

Because the attack causes database queries to skip the index and run slower, the main risk is a denial-of-service attack. Many searches could bog down the database.

speed dating i holmsund Countermeasures in Rails

Sanitizing user input is the best way to prevent injection. For Rails version 4.2 or greater, ActiveRecord has a new helper function, sanitize_sql_like, which escapes out the percent signs (and the _ character).