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Update Protection against Microsoft SQL Server 2000 Client Components ActiveX Control Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2008-157
Date Published:
Severity:
Last Updated:
Source: SecurityFocus ID: 31129
Industry Reference(s): CVE-2008-4110
Protection Provided by: VPN-1
  • NGX R65
  • NGX R62
  • NGX R61
  • NGX R60
VSX
  • NGX R65
InterSpect
  • NGX
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Microsoft SQL Server 2000
Vulnerability Description
A buffer overflow vulnerability has been reported in Microsoft SQL Server. Microsoft SQL Server is a relational database management system (RDBMS). By convincing a user to visit a specially crafted Web page, a remote attacker may trigger this vulnerability to execute arbitrary code on an affected system.
Vulnerability Details
The vulnerability is due to a boundary error in the Microsoft SQL Server 2000 Client Components ActiveX Control sqlvdir.dll when handling parameters passed to the Connect method. To trigger this issue, an attacker may create a malicious web page that will exploit this vulnerability. Successful exploitation would cause a memory corruption that may allow execution of arbitrary code on a vulnerable system.

Protection Overview
By enabling this protection, SmartDefense will detect and block the vulnerable ActiveX control. Depending on the traffic mix, activating this protection may result in performance degradation.

In order for the protection to be activated, update your VPN-1/InterSpect product to the latest SmartDefense update. For information on how to update SmartDefense, 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.

VPN-1 NGX R65 & R62

How Can I Protect My Network?
1. In the SmartDefense tab, click Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities > Block Microsoft SQL Server Client Components ActiveX Buffer Overflow.
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.

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

Attack Name: Web Client Enforcement Violation
Attack Information: Microsoft SQL server client components ActiveX buffer overflow

VPN-1 NGX R61 & R60

How Can I Protect My Network?
1. In the Web Intelligence tree, click HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following:

Block Microsoft SQL Server Client Components ActiveX Buffer Overflow

3. Install security policy on all modules.

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

Attack Name: Web Client Enforcement Violation
Attack Information: Microsoft SQL server client components ActiveX buffer overflow

VPN-1 VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities > Block Microsoft SQL Server Client Components ActiveX Buffer Overflow.
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.

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

Attack Name: Web Client Enforcement Violation
Attack Information: Microsoft SQL server client components ActiveX buffer overflow

InterSpect NGX

How Can I Protect My Network?
1. In the left pane, select Profiles > Default Protection and select the Web Intelligence page of the profile.
2. In the Web Intelligence tree, click HTTP Client Protections > Microsoft Internet Explorer vulnerabilities.
3. Select the following:

Block Microsoft SQL Server Client Components ActiveX Buffer Overflow

4. Install security policy on all modules.

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

Attack Name: Web Client Enforcement Violation
Attack Information: Microsoft SQL server client components ActiveX buffer overflow

IPS-1 & IPS-1 NGX R65

How Can I Protect My Network?
1. In the IPS-1 Policy Manager, click on the Protection tab.
2. In the Protection tree, click Application Intelligence > Badfiles, and select the ActiveX Parser protection group
3. Click User defined bad ActiveX Class ID (IPS-1 NGX R65 only).
4. In the configuration pane, under Settings, check Active.
5. Click on Install Policy.

How Do I Know if My Network is Under Attack?
Upon attack, the following entries will be logged:

Alert Name: Badfiles ActiveX class in HTML file Alert/Filter
Description: User defined bad ActiveX Class ID