Check Point Advisories

IBM DB2 Database Server CONNECT Request Denial of Service (CVE-2009-0172)

Vulnerability
Protection

Check Point Reference:	CPAI-2009-094
Date Published:	21 Apr 2009
Severity:	Critical
Last Updated:	Tuesday 29 December, 2015
Source:
Industry Reference:	CVE-2009-0172
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	IBM DB2 Database is a relational database management system that consists of a set of services that work together to provide data processing functionalities. A denial of service vulnerability has been reported in IBM DB2 Database Server.The vulnerability is due to insufficient input validation by the IBM DB2 Database Server while processing malformed connect data streams.A remote attacker may exploit this issue by sending a malicious Distributed Relational Database Architecture (DRDA) connect data stream to the server.Successful exploitation of this vulnerability will cause the server to enter an infinite loop once it will process the malformed CONNECT request, creating a denial of service condition.

Protection Overview

This protection will detect and block malformed CONNECT requests sent to the IBM DB2 Database Server.

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 / R71 / R70

In the IPS tab, click Protections and find the IBM DB2 Database Server CONNECT Request 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: IBM Protection Violation.
Attack Information: IBM DB2 database server CONNECT request denial of service