A few weeks ago I managed a DLL injection on a SQL server…
Other than that, I’d say in general, penetration testing.
It can and does happen on SQL servers, it is simply not limited to them. All Windows platforms are vulnerable to DLL injection in some way.
SQL servers are generally more vulnerable to web or application based attacks (SQL injection, obviously) rather than direct attacks on the host due to their placement on the network and the way they are used.
For your query, Penetration Testing is the act, SQL server is simply a place the act can occur or involve.
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