This plot shows NO2 levels over the day in Munich in June and December 2016.
München-Landshuter-Allee on the left has about the highest NO2 levels
in all Germany,
and a lot of traffic — 120,000 to 150,000 cars and light trucks per day.
Surprise: high traffic => high NO2.
| [ | |
| { | |
| "Created_Datetime":"2\/16\/2013 2:57:59 AM", | |
| "Id":1067196, | |
| "Last_Login_Datetime":"7\/10\/2014 2:36:08 AM", | |
| "LeagueConquest":{ | |
| "Leaves":0, | |
| "Losses":0, | |
| "Name":"Conquest", | |
| "Points":0, |
| [ | |
| { | |
| "Created_Datetime":"7\/26\/2012 8:21:03 PM", | |
| "Id":312304, | |
| "Last_Login_Datetime":"7\/10\/2014 11:48:52 PM", | |
| "LeagueConquest":{ | |
| "Leaves":2, | |
| "Losses":151, | |
| "Name":"Conquest", | |
| "Points":81, |
| Demo |
This advisory concerns a security risk in all supported versions of Active Record. There is no patch to apply for this issue.
Due to the query API that Active Record supports, there is a risk of unsafe query generation in two scenarios. Databases with a table that contains a column with the same name as the table and queries with join aliases which conflict with column names could be vulnerable to an attack where the attacker can perform certain manipulations to the SQL queries generated by Rails.
A vulnerable application will either contain columns named identically to their table, or have column names which conflict with join aliases.
For example, if you had a model called SecurityToken, which contained an attribute called security_tokens then the following code could be manipulated to return additional records:
| import ( | |
| "crypto/md5" | |
| "encoding/hex" | |
| ) | |
| func GetMD5Hash(text string) string { | |
| hasher := md5.New() | |
| hasher.Write([]byte(text)) | |
| return hex.EncodeToString(hasher.Sum(nil)) | |
| } |
| package main | |
| import "fmt" | |
| func main() { | |
| i := 1 | |
| for i <= 100 { | |
| if (i % 3 == 0 && i % 5 == 0) { | |
| fmt.Println("Fizzbuzz") | |
| } else if (i % 3 == 0) { |
| package main | |
| import ( | |
| "fmt" | |
| "image" | |
| "os" | |
| _ "image/jpeg" | |
| _ "image/png" | |
| ) |
| # SQLite version 3.x | |
| # gem install sqlite3 | |
| # | |
| # Ensure the SQLite 3 gem is defined in your Gemfile | |
| # gem 'sqlite3' | |
| development: | |
| adapter: postgresql | |
| encoding: unicode | |
| host: localhost | |
| database: smitecamp_db |
| source 'https://rubygems.org' | |
| ruby '2.0.0' | |
| gem 'rails', '4.0.0' | |
| gem 'sass-rails', '~> 4.0.0' | |
| gem 'uglifier', '>= 1.3.0' | |
| gem 'coffee-rails', '~> 4.0.0' | |
| gem 'jquery-rails' | |
| gem 'jbuilder', '~> 1.2' |
