The CERT/CC's Vulnerability Note succinctly summarized the issue: "A remote, unauthenticated attacker with network access to the MySQL server could successfully authenticate without knowledge of the user's password" . This made MySQL 5.0.12 a prime target for automated scanning and exploitation.
Ensure that the FILE privilege is revoked from all non-administrative users. Without the FILE privilege, attackers cannot write malicious shared libraries to disk.
You can test a MySQL client’s vulnerability by setting up a Python rogue server:
-- Return the output of a command as a string SELECT sys_eval('whoami'); mysql 5.0.12 exploit
In a publicly disclosed incident (name withheld for confidentiality), attackers compromised a marketing department’s WordPress site via SQL injection. The backend database was MySQL 5.0.12 running on a Windows Server 2008 R2 machine—both long out of support.
MySQL 5.0.12 is nearly two decades old. Running this version today exposes a system to: Buffer Overflows:
Attackers typically use a payload like the following to test for vulnerability: ' AND (SELECT 1 FROM (SELECT(SLEEP(5)))a) AND ' Use code with caution. Copied to clipboard Without the FILE privilege, attackers cannot write malicious
If you are still running legacy versions like MySQL 5.0.12, your system is highly vulnerable to modern automated exploitation tools. Immediate Upgrade
by repeatedly attempting to authenticate with an incorrect password. Due to a
MySQL 5.0.12 release is part of a legacy version series (MySQL 5.0.x) that contains several "classic" vulnerabilities often studied in cybersecurity and penetration testing. While 5.0.12 itself is an older build, it is vulnerable to several high-impact exploits discovered throughout the 5.0.x lifecycle. MySQL 5
An authenticated user with low-level privileges could exploit a design flaw in how the database manages execution contexts for stored procedures and routines.
In the world of cybersecurity, few pieces of software have stood the test of time like MySQL. Originally released in the mid-1990s, MySQL became the backbone of millions of web applications, from small WordPress blogs to massive enterprise systems. By 2005, version 5.0.12 was a landmark release, introducing views, stored procedures, and triggers. But it also introduced something else: a critical vulnerability that would echo through penetration testing manuals for a decade.
CREATE FUNCTION sys_eval RETURNS string SONAME 'malicious_udf.so'; SELECT sys_eval('whoami'); Use code with caution.
: Under specific conditions, a token with a length mismatch or an unexpected null byte causes the function to return a zero, which the server interprets as a successful password match.
seconds to respond, the attacker confirms the injected condition (e.g., "does the admin password start with 'A'?") is true. Payload Example ' AND (SELECT 1 FROM (SELECT(SLEEP(5)))a) AND '1'='1 Historical Context & Related Exploits While version 5.0.12 is often cited in automated tools like