Mysql 5.0.12: Exploit ^hot^

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MySQL 5.0.12, released in 2005, is highly outdated and contains numerous critical vulnerabilities. Because this version is often featured in legacy systems or training environments like Metasploitable2, it is a common target for demonstration exploits.

Execution of arbitrary OS commands with the permissions of the MySQL < 5.0.25 / 5.1.12 Privilege Escalation - Tenable mysql 5.0.12 exploit

Isolate legacy databases from the public internet using firewalls and strict access control lists (ACLs).

: Authenticated users could cause a denial of service (crash) by passing a format string instead of a date to the date_format function. Modern Exploitation Context This public link is valid for 7 days

: On Windows installations, authenticated users with INSERT privileges on the mysql.func table could cause a server hang or execute code. By requesting a non-library file or a library not tailored for MySQL (like certain jpeg DLLs), they could block the LoadLibraryEx function.

MySQL 5.0.12 is also vulnerable to remotely triggered crashes. When the server processes a crafted user request containing unexpected parameters or overly long strings within specific SQL commands (such as malformed COM_TABLE_DUMP or user-defined functions), it triggers a buffer overflow or a null pointer dereference. This causes the database daemon ( mysqld ) to crash immediately, disrupting dependent web applications. Proof of Concept (PoC) Mechanics Can’t copy the link right now

Legacy software remains one of the largest attack surfaces in modern enterprise networks. While MySQL 5.0.12 was released in 2005, its code footprint and architectural vulnerabilities still appear in legacy environments, embedded appliances, and capture-the-flag (CTF) challenges. Understanding the mechanics of a MySQL 5.0.12 exploit reveals critical lessons in memory corruption, authentication bypass, and database hardening.

The typical workflow for exploiting MySQL 5.0.12 via UDFs is:

Using the INTO DUMPFILE or INTO OUTFILE commands to write a malicious binary to a directory where the server could load plugins.