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Update Protection against Microsoft Internet Explorer Request Header Information Disclosure Vulnerability (MS08-031)

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Check Point Reference: CPAI-2009-279
Date Published:
Severity:
Source: Microsoft Security Bulletin MS08-031
Industry Reference(s): CVE-2008-1544
Protection Provided by: Security Gateway
  • R70
Who is Vulnerable?
Internet Explorer 5.01 and Internet Explorer 6 SP1:
Microsoft Windows 2000 SP4
Microsoft Windows 2000 SP4

Internet Explorer 6:
Windows XP SP2
Windows XP SP3
Windows XP Professional x64 Edition
Windows XP Professional x64 Edition SP2
Windows Server 2003 SP1
Windows Server 2003 SP2
Windows Server 2003 x64 Edition
Windows Server 2003 x64 Edition SP2
Windows Server 2003 with SP1 (Itanium)
Windows Server 2003 with SP2 (Itanium)

Internet Explorer 7:
Windows XP SP2
Windows XP SP3
Windows XP Professional x64 Edition
Windows XP Professional x64 Edition SP2
Windows Server 2003 SP1
Windows Server 2003 SP2
Windows Server 2003 x64 Edition
Windows Server 2003 x64 Edition SP2
Windows Server 2003 with SP1 (Itanium)
Windows Server 2003 with SP2 (Itanium)
Windows Vista
Windows Vista SP1
Windows Vista x64 Edition
Windows Vista x64 Edition SP1
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for x64-based Systems
Windows Server 2008 (Itanium)
Vulnerability Description
An information disclosure vulnerability has been reported in the way that Internet Explorer handles certain request headers. A remote attacker could exploit this issue by convincing a user to open a maliciously crafted HTML file with Internet Explorer, which may allow the attacker to view data from a Web page in another Internet Explorer domain.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS08-031
Vulnerability Details
The vulnerability is due to an error in Internet Explorer that incorrectly parses a specially crafted request header, allowing a violation of the same origin policy. To trigger this issue, an attacker may create a malicious web page and persuade a user to view it. Successful exploitation of this vulnerability will allow an attacker to view the content in another browser window in another domain or Internet Explorer zone.

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 R70

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. In the right pane, double-click the Internet Explorer Request Header Information Disclosure (MS08-031) 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: Web Client Enforcement Violation
Attack Information: Microsoft Internet Explorer request header information disclosure (MS08-031)