For the most up-to-date and specific payloads, the MySQL page on HackTricks serves as the primary technical reference for these "verified" methods.
: Instructions on using LOAD_FILE() and INTO OUTFILE to read or write local files, which can lead to Remote Code Execution (RCE).
: Detailed payloads for Union-based, Error-based, and Blind SQL injection to extract data.
| Misconfiguration | Attack | |----------------|--------| | secure_file_priv='' | File read/write anywhere | | plugin_dir writable | UDF execution | | root with empty password | Full control | | FILE privilege granted to web app user | Write webshell | | Log files in web-accessible dir | Write query logs containing PHP | mysql hacktricks verified
mysql -h <Target IP> -u root
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Old software has known bugs. Finding the exact version number helps you know if the system is weak. Connecting and Testing Logins For the most up-to-date and specific payloads, the
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nmap -sV -sC -p3306 <target>
: Query the mysql.user table to harvest password hashes. Use Hashcat with mode 300 (MySQL4.1/MySQL5) or mode 200 (MySQL3.23) to crack them off-line. I need to follow the search plan exactly as provided
Ensure the operating system confines the MySQL process daemon so that even a successful system-level breakout cannot access sensitive system paths. Share public link
SELECT LOAD_FILE('/etc/passwd'); SELECT LOAD_FILE('C:\\Windows\\win.ini'); Use code with caution. Writing Local Files / Gaining Remote Code Execution (RCE)
✅ : MySQL 8.0+ has not changed the underlying file‑write mechanism. New CVEs such as CVE‑2025‑67509 (affecting MySQLSelectTool) explicitly demonstrated that SELECT ... INTO OUTFILE can bypass "read‑only" constraints if the account has FILE privilege. This confirms that even in 2025‑2026, FILE‑based writes remain a severe risk .
Set secure_file_priv to NULL in the my.cnf or my.ini configuration file to prevent attackers from reading sensitive system files or writing web shells. 5. Privilege Escalation and Post-Exploitation Risks
On certain Linux distributions, a verified vulnerability allowed attackers to bypass authentication by repeatedly attempting to log in with an incorrect password. Due to a casting error, there was a 1 in 256 chance the server would accept the wrong password as correct. 5. Post-Exploitation and Lateral Movement Enumerating Users : Extracting hashes from mysql.user Sensitive Data Discovery
