Check Point Advisories

IBM Informix Dynamic Server SET ENVIRONMENT Stack Buffer Overflow (CVE-2011-1033)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-067
Date Published:	13 Mar 2011
Severity:	High
Last Updated:	Tuesday 10 November, 2015
Source:
Industry Reference:	CVE-2011-1033
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	IBM Informix Dynamic Server is an online transaction processing data server. IBM Informix Dynamic Server functionalities include an implementation of SQL including SQL statements, data types, and system catalog tables that provide information regarding database structures. A stack-based buffer overflow vulnerability has been reported in IBM Informix Dynamic Server. The vulnerability is due to a boundary error in the oninit process in the IBM Informix Dynamic Server when handling a malformed SET ENVIRONMENT SQL statement. A remote attacker can exploit this issue by sending a specially crafted SQL query to the vulnerable server. Successful exploitation of this vulnerability could result in arbitrary code execution on an affected system.

Protection Overview

This protection will detect and block malformed SET ENVIRONMENT SQL statements sent to the vulnerable 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

In the IPS tab, click Protections and find the IBM Informix Dynamic Server SET ENVIRONMENT Stack Buffer Overflow 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 Informix Dynamic Server SET ENVIRONMENT stack buffer overflow