The phrase you provided, -9718 UNION ALL SELECT 34,34,34,34,34,34,34,34,34,34# , is a classic example of , a technique used to probe a database for vulnerabilities. Understanding the Syntax
: This ensures the database treats the input as literal data rather than executable code. -9718 UNION ALL SELECT 34,34,34,34,34,34,34,34,34,34#
: In many SQL dialects like MySQL, the hash symbol indicates the start of a comment, which "comments out" the rest of the original, legitimate query so it doesn't cause a syntax error. Security Implications The phrase you provided, -9718 UNION ALL SELECT
: Filter and sanitize all user-provided data to block unexpected characters like UNION , SELECT , or # . The phrase you provided
: Ensure the database user account has the bare minimum permissions necessary to function.
This specific string is designed to trick a web application into running an unintended database command:
: This SQL operator combines the result sets of two or more SELECT statements into a single result.
