Use prepared statements in your application layer to completely eliminate SQL injection vectors.
: Moving from a low-privileged user to administrative access, sometimes via external libraries. Verification and Community Resources
auxiliary/scanner/mysql/mysql_auth_bypass_hashdump : Checks for specific historical authentication vulnerabilities. 2. Authentication Bypass and Brute Forcing mysql hacktricks verified
Do you have to the database, or are you testing via a web application ?
If you or any other user has the FILE privilege set to 'Y', you can immediately leverage it. Use prepared statements in your application layer to
' UNION SELECT * FROM users --
Union injection allows you to append the results of your own query to the application's intended query. ORDER BY 1; -- ORDER BY 2; -- Use code with caution. Determine data types and extract data: UNION SELECT 1, 2, version(), user(); -- Use code with caution. Blind and Time-Based Injection ' UNION SELECT * FROM users -- Union
As a cloud security rule of thumb: having the ability to write (i.e., create or modify) any resource within a cloud tenant inherently grants the potential for privilege escalation. Additionally, cloud backups (accessible via cloudsql.backupRuns.get on GCP) often contain older credentials and sensitive historical data, providing an alternative path to access live systems.
If you establish a direct high-privileged connection (such as root ) but are confined to the database context, User Defined Functions (UDF) can bridge the gap to full Operating System Remote Code Execution (RCE). The UDF Mechanics