Since no message named 'a' is likely to be sent, the database simply pauses for those 2 seconds before continuing.
This confirmation allows them to move on to more destructive queries, such as extracting usernames, passwords, or entire table structures, one character at a time based on these time delays. Mitigation and Defense MEGA'/**/and/**/DBMS_PIPE.RECEIVE_MESSAGE('a',2)='a
: This is the core of the attack. It calls a built-in Oracle function. Since no message named 'a' is likely to
If the page takes ~2 seconds longer than usual to load, they know the DBMS_PIPE command was successfully executed. such as extracting usernames
In a "blind" injection, the database doesn't return error messages or data directly to the screen. Instead, the attacker observes the : The attacker sends the request.