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Update Protection against IBM Informix Dynamic Server DBINFO Stack Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2010-400
Date Published:
Severity:
Source: Secunia Advisory: SA41914
Industry Reference(s): CVE-2010-4069
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
IBM Informix Dynamic Server 7.x through 7.31
IBM Informix Dynamic Server 9.x through 9.40
IBM Informix Dynamic Server 10.00 prior to 10.00.xC10
IBM Informix Dynamic Server 11.10 prior to 11.10.xC3
IBM Informix Dynamic Server 11.50 prior to 11.50.xC3
Vulnerability Description
A stack buffer overflow exists in IBM Informix Dynamic Server Database. Informix is a family of relational database management system (RDBMS) products by IBM. IBM Informix Dynamic Server is an online transaction processing data server. A remote attacker may exploit this vulnerability to execute arbitrary code on a vulnerable system.
Vulnerability Details
The vulnerability is caused by an insufficient bounds checking on user-supplied data provided to the DBINFO function as part of an SQL query. A remote attacker could overflow the stack buffer allowing execution of arbitrary code on an affected system.

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, Protection tab and select the version of your choice. 

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway: R75

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > IPS Software Blade > Application Intelligence > Database Protections.
2. In the right pane, double-click the  IBM Informix Dynamic Server DBINFO Stack Buffer Overflow protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings. 
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Database Protection Violation
Attack Information: IBM Informix Dynamic Server DBINFO stack buffer overflow