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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:
Or read more here.