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Difference between revisions of "SQL injection/Target Environments/Compatibility/Capabilities"
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Revision as of 01:39, 19 July 2012
Different SQL databasing engines have different capabilities. As a result, there are advantages and disadvantages passed to an attacker for each limitation or unique piece of functionality that a SQL server may have to offer.
- MSSQL Has the ability to execute server side commands natively via xp_cmdshell. This feature can be enabled or disabled (remotely), and other functions exist to read/write to the windows registry.
- MySQL has the ability to read and write to files using the LOAD DATA and SELECT ... INTO OUTFILE ... statements as well as the load_file() function.
- PostgreSQL is the only databasing engine which supports trigger functions or other user-defined functionality added to a table in most procedural scripting languages (Perl,Python,Ruby). Because it supports stacked queries when combined with PHP, it is possible to use SQL injection to install an SQL backdoor or plugin.
