GreenSQL - Open Source Database Firewall

GreenSQL is an Open Source database firewall used to protect databases from SQL injection attacks. GreenSQL works as a proxy and has built in support for MySQL. 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).



URL: GreenSQL
Price: $0
Version: 1.0.0 (Apr 9th, 2009)
Platform: Linux

The official performance test is ~2-12% degrade comparing to bare MySQL and the degree of degradation depends on number of concurrent connections. But browsing through the forum, the performance is ~100% degraded.

GreenSQL is still a brilliant idea to prevent SQL injection. Should keep an eye on the future development of the product.