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Update Protection against IBM Informix Dynamic Server oninit.exe EXPLAIN Stack Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2010-401
Date Published:
Severity:
Source: Secunia Advisory: SA41913
Industry Reference(s): CVE-2010-4053
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
IBM Informix Dynamic Server prior to 11.10.xC2W2
IBM Informix Dynamic Server prior to 11.50.xC1
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.
Update/Patch Available
Upgrade to the latest version of Informix Dynamic Server (IDS):
ibm-ids-oninit-bo (62619)
Vulnerability Details
The vulnerability is caused by insufficient checks within a logging function of the oninit.exe process. A remote attacker may exploit this vulnerability by sending a crafted SET EXPLAIN command to a target server. Successful exploitation of this vulnerability will allow the attacker to execute 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 oninit.exe EXPLAIN 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 oninit.exe EXPLAIN stack buffer overflow