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Update Protection against Microsoft Visual Studio ActiveX Control Buffer Overflow Vulnerability (MS08-070)

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Check Point Reference: CPAI-2008-234
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS08-070
Industry Reference(s): CVE-2008-3704
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 Visual Studio 6.0
Vulnerability Description
A buffer overflow vulnerability was reported in MS Visual Studio 6.0. Microsoft Visual Studio 6.0 is designed for building Windows based applications and Web solutions. Microsoft Visual Studio 6.0 is shipped with a set of ActiveX controls. The vulnerability is due to a boundary error while handling an overly large parameter of one of the ActiveX controls. A remote attacker could exploit the vulnerability by enticing the target user to visit a malicious web page. Successful exploitation would result in arbitrary code execution.
Vulnerability Status
 It has been observed that active exploits exist in the wild. Note that to exploit this issue, an attacker must entice a user to open a malicious web document.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS08-070
Vulnerability Details
The vulnerability is due to a memory corruption error in the Visual Basic MaskedEdit ActiveX control when it fails to properly perform boundary checks on user-supplied input. To trigger this issue, an attacker may create a malicious web page that initiates the vulnerable COM Object. Successful exploitation of this vulnerability allows execution of arbitrary code on the 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/IPS-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 Visual Studio MaskedEdit ActiveX Control 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: MS Visual Studio MaskedEdit ActiveX control 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 Visual Studio MaskedEdit ActiveX Control 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: MS Visual Studio MaskedEdit ActiveX control 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 Visual Studio MaskedEdit ActiveX Control 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: MS Visual Studio MaskedEdit ActiveX control 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 Visual Studio MaskedEdit ActiveX Control 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: MS Visual Studio MaskedEdit ActiveX control 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