Check Point Advisories

MySQL XML Functions Scalar XPath Denial of Service (CVE-2009-0819)

Vulnerability
Protection

Check Point Reference:	CPAI-2009-383
Date Published:	10 Nov 2009
Severity:	High
Last Updated:	Tuesday 10 November, 2009
Source:
Industry Reference:	CVE-2009-0819
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	MySQL is an open-source implementation of a relational database management system. MySQL supports the SQL (Structured Query Language) database query language. The database product allows remote network connections from client applications over the proprietary MySQL network protocol. MySQL Server listens on TCP port 3306 by default. A vulnerability exists in MySQL database engine. The vulnerability is due to insufficient input validation of XML functions used in SQL statements. A remote authenticated attacker can exploit this vulnerability by sending crafted requests to the target host. Successful exploitation would be a denial of service condition of MySQL database services on the target host. In a successful attack case, the affected server will terminate and all established connections will also be terminated.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the MySQL XML Functions Scalar XPath Denial of Service protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: MySQL Protection Violation.
Attack Information: MySQL XML functions scalar XPath denial of service