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Update Protection against Microsoft Internet Explorer Cross-Domain Information Disclosure Vulnerability (MS08-058)

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Check Point Reference: CPAI-2008-159
Date Published:
Severity:
Source: Microsoft Security Bulletin MS08-058
Industry Reference(s): CVE-2008-3474
Protection Provided by: VPN-1
  • NGX R65
  • NGX R62
  • NGX R61
  • NGX R60
VSX
  • NGX R65
InterSpect
  • NGX
Who is Vulnerable?
Internet Explorer 5.01
Internet Explorer 6
Internet Explorer 6 SP1
Internet Explorer 7
Vulnerability Description
An information disclosure vulnerability has been reported in Microsoft Internet Explorer. A remote attacker could exploit this issue by convincing a user to open a maliciously crafted HTML file with Internet Explorer.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS08-058
Vulnerability Details
The vulnerability is due to an error in Internet Explorer that fails to correctly interpret the origin of scripts. An attacker can trigger this flaw by convincing a user to view a specially crafted HTML document. Successful exploitation of this issue may allow the attacker to read cookies or other data from another domain or Internet Explorer security zone.

Protection Overview
By enabling this protection, SmartDefense will detect and block attempts to exploit this vulnerability. Depending on the traffic mix, activating these protections 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 Internet Explorer Cross-Domain Information Disclosure (MS08-058).
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: Internet Explorer cross-domain information disclosure (MS08-058)

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 Internet Explorer Cross-Domain Information Disclosure (MS08-058)

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: Internet Explorer cross-domain information disclosure (MS08-058)

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 Internet Explorer Cross-Domain Information Disclosure (MS08-058).
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: Internet Explorer cross-domain information disclosure (MS08-058)

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 Internet Explorer Cross-Domain Information Disclosure (MS08-058)

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: Internet Explorer cross-domain information disclosure (MS08-058)