GreenSQL is an Open Source database firewall used to protect databases from SQL injection attacks. GreenSQL works as a proxy for SQL commands and has built in support for MySQL & PostgreSQL . The logic is based on evaluation of SQL commands using a risk scoring matrix as well as blocking known db administrative commands (DROP, CREATE, etc). GreenSQL is distributed under the GPL license.

GreenSQL Architecture

GreenSQL works as a reverse proxy for MySQL connections. This means, that instead of connecting TO THE MySQL server, your applications will connect to THE GreenSQL server. GreenSQL will analyze SQL queries and then, if they’re safe, will forward them to the back-end MySQL server.

New Changes

In this version, GreenSQL provides native support for PostgreSQL (http://www.postgresql.org) databases for the very first time. In fact, GreenSQL is the only database firewall (Open or Closed Source) available for the protection of the many PostgreSQL databases currently in use.

GreenSQL 1.2 merges the GreenSQL-Console package into the GreenSQL-FW. The GreenSQL-Console will no longer be released as a separated package. During the installation process, you will be able to choose whether or not to install the console.

You can download GreenSQL v1.2 here:

greensql-fw-1.2.2.tar.gz

Or read more here.

CORE GRASP for PHP is a web-application protection software aimed at detecting and blocking injection vulnerabilities and privacy violations.

As mentioned during its presentation at Black Hat USA 2007, GRASP is being released as open source under the Apache 2.0 license.

The present implementation protects PHP 5.2.3 against SQL-injection attacks for the MySQL engine, it can be installed with almost the same effort as the PHP engine, both in Unix and Windows systems, and protection is immediate with any PHP web application running in the protected server.

CORE GRASP works by enhancing the PHP execution engine (VM) to permit byte-level taint tracking and analysis for all the user-controlled or otherwise untrustable variables of the web application. Tainted bytes are then tracked and their taint marks propagated throughout the web application’s runtime.

Whenever the web application tries to interact with an DB backend using SQL statements that contain tainted bytes, GRASP analyzes the statment and detects and prevents attacks or abnormal
actions.

CORE GRASP was developed by CoreLabs, the research unit of Core Security Technologies. At CoreLabs, we plan to improve the tool and include new protections shortly. However, the invitation to collaborate with the project is open. If you would like to collaborate, please go to the GRASP website and subscribe to the mailing list.

The documentation for CORE GRASP is available here and you can download it here:

CORE GRASP download page

Or you can read more here.