Mysql Hacktricks Verified ^new^ -

If default credentials fail, automated password spraying can be executed via Hydra or Metasploit. hydra -L usernames.txt -P passwords.txt mysql Use code with caution. Metasploit Module: auxiliary/scanner/mysql/mysql_login CVE-2012-2122 (Authentication Bypass)

Beyond the Query: A Deep Dive into Verified MySQL Exploitation Techniques

| Attack Vector | Description | |---|---| | | Executes OS command, returns exit code | | sys_eval() | Executes OS command, returns output | | do_system() | Calls system() function | | shell_exec() | Alternative system command execution |

The secure_file_priv variable must be empty or point to a writable directory like the MySQL plugins folder. : mysql hacktricks verified

Union-based SQL injection is a classic attack technique that involves injecting malicious SQL code to extract data from the database.

SET @shell = 0x<hex_value>; SELECT binary @shell INTO DUMPFILE '<plugin_dir>/exploit.so';

: It frequently links to and explains the use of industry-standard tools like sqlmap for automated testing. If default credentials fail, automated password spraying can

| Setting | Action | Purpose | |---|---|---| | secure_file_priv | Set to NULL or a specific safe directory | Prevents arbitrary file reads/writes | | validate_password | Enforce strong password policies | Prevents credential brute‑forcing | | Plugin directory | Restrict write permissions | Blocks UDF exploitation | | General log | Disable if not needed | Prevents log‑based RCE | | Host‑based ACLs | Enforce for all users | Blocks authentication bypass attempts |

When using automated tools like SQLMap, you may encounter the term "verified." This means the injection point has been confirmed as exploitable. However, in the context of HackTricks methodologies, "Verified" takes on a broader meaning:

Before attempting brute-force attacks, leverage built-in NSE (Nmap Scripting Engine) scripts to extract public metadata. Automated Nmap Auditing : Union-based SQL injection is a classic attack

CREATE FUNCTION sys_eval RETURNS string SONAME 'lib_mysqludf_sys.so'; SELECT sys_eval('id'); Use code with caution. 5. Data Exfiltration via SQL Injection

: If MySQL runs as a high-privileged user (e.g., root), it can be used to execute system commands via User Defined Functions (UDF) using libraries like lib_mysqludf_sys .

This comprehensive guide details verified methodologies, commands, and techniques for enumerating, exploiting, and post-exploiting MySQL environments during authorized security engagements. 1. Initial Reconnaissance and Enumeration

Write the compiled UDF binary file (e.g., lib_mysqludf_sys.so ) into the plugin directory discovered above using the INTO OUTFILE technique.