Mysql Hacktricks Verified __hot__ -

Before executing complex exploits, you must gather telemetry about the target instance. MySQL standardly listens on port 3306 . Active Enumeration

In some older MySQL/MariaDB versions, a race condition exists between checking secure_file_priv and opening the file. Not reliable on patched systems, but for CTFs, try:

Older or misconfigured MySQL deployments suffer from known logical flaws that grant unauthorized access. The MySQL Authentication Bypass (CVE-2012-2122) mysql hacktricks verified

Example:

http://example.com/vulnerable-page?id=1 UNION SELECT LOAD_FILE('/etc/passwd') -- - Before executing complex exploits, you must gather telemetry

: Automating the identification of the MySQL service (default port 3306) and running audit scripts. nmap -sV -p 3306 --script mysql-audit .

UNION SELECT 1,2,3,concat(user(),0x3a,database(),0x3a,version()),5,6-- - Not reliable on patched systems, but for CTFs,

: Automated scripts to search for "API", "password", or "key" across all schemas. Stealing SSH Keys LOAD_FILE() to check default locations like /root/.ssh/id_rsa 6. Conclusion and Remediation Securing MySQL requires a multi-layered approach: Strict File Permissions : Configuring secure_file_priv to a dedicated, non-web-accessible directory. Principle of Least Privilege : Disabling the privileges for application users. Network Isolation

select user, file_priv from mysql.user where file_priv='Y';

If secure_file_priv is set (prevents INTO OUTFILE / LOAD_FILE outside certain dirs), check its value:

Identify the plugin directory where MySQL expects extensions to reside: SHOW VARIABLES LIKE "plugin_dir"; Use code with caution. Write the binary payload into the plugin directory: