Sqlninja is a tool to exploit SQL Injection vulnerabilities on a web application that uses Microsoft SQL Server as its back-end. Its main goal is to provide a remote shell on the vulnerable DB server, even in a very hostile environment. It should be used by penetration testers to help and automate the process of taking over a DB Server when a SQL Injection vulnerability has been discovered.

It is written in Perl, it is released under the GPLv2 and so far has been successfully tested on:

• Linux
• FreeBSD
• Mac OS X

Features

• Fingerprint of the remote SQL Server (version, user performing the queries, user privileges, xp_cmdshell availability, authentication mode)
• Bruteforce of ’sa’ password, both dictionary-based and incremental
• Privilege escalation to ’sa’ if its password has been found
• Creation of a custom xp_cmdshell if the original one has been disabled
• Upload of netcat.exe (or any other executable) using only 100% ASCII GET/POST requests, so no need for FTP connections
• TCP/UDP portscan from the target SQL Server to the attacking machine, in order to find a port that is allowed by the firewall of the target network and use it for a reverse shell
• Direct and reverse bindshell, both TCP and UDP
• DNS-tunneled pseudo-shell, when no TCP/UDP ports are available for a direct/reverse shell, but the DB server can resolve external hostnames

What’s new

• Evasion techniques, in order to obfuscate the injected code and confuse/bypass signature-based IPS and application firewalls
• A more sophisticated upload module
• A new ‘blind execution’ attack mode, useful to issue commands and performs diagnostics when other modes fail
• Automatic URL-encoding now is performed only on sqlninja generated SQL code, giving the user a more granular control on the exploit strings

You can download Sqlninja 0.2.2 here:

sqlninja-0.2.2.tgz

Or read more here.