Update Protection against Microsoft GDI+ EMF Image Processing Integer Overflow Vulnerability (MS11-029)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-224
Date Published:
Severity:
Source:	Microsoft Security Bulletin MS11-029
Industry Reference(s):	CVE-2011-0041
Protection Provided by:	Security Gateway R75 R71 R70 VPN-1 NGX R65 VSX NGX R65 IPS-1 IPS-1 IPS-1 NGX R65
Who is Vulnerable? Windows XP SP3 Windows XP Professional x64 Edition SP2 Windows Server 2003 SP2 Windows Server 2003 x64 Edition SP2 Windows Server 2003 with SP2 (Itanium) Windows Vista SP1 Windows Vista SP2 Windows Vista x64 Edition SP1 Windows Vista x64 Edition SP2 Windows Server 2008 for 32-bit Systems Windows Server 2008 for 32-bit Systems SP2 Windows Server 2008 for x64-based Systems Windows Server 2008 for x64-based Systems SP2 Windows Server 2008 (Itanium) Windows Server 2008 (Itanium) SP2 Microsoft Office XP SP3
Vulnerability Description An integer overflow vulnerability has been discovered in the way that GDI+ handles integer calculations. GDI+ is a graphics device interface that provides two-dimensional vector graphics, imaging, and typography to applications and programmers. The vulnerability could be triggered if a user opens a specially crafted EMF image file. An EMF image is a 32-bit format that can contain both vector information and bitmap information. A remote attacker who successfully exploited this vulnerability could take complete control of an affected system.

Update/Patch Available Apply patches: Microsoft Security Bulletin MS11-029
Vulnerability Details The vulnerability is caused by a memory corruption when GDI+ improperly processes a specially crafted EMF image file. By convincing a user to open a specially crafted EMF image file, a remote attacker could exploit thie issue. Successful exploitation may allow execution of arbitrary code on a vulnerable system.

Protection Overview
This protection will detect and block the transferring of malformed EMF files over HTTP.

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

Security Gateway: R75

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > IPS Software Blade > Application Intelligence > Content Protection.
2. In the right pane, double-click the Microsoft GDI+ EMF Image Processing Integer Overflow (MS11-029) 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: Content Protection Violation
Attack Information: Microsoft GDI+ EMF image processing integer overflow (MS11-029)

Security Gateway: R70/R71

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Content Protection.
2. In the right pane, double-click the Microsoft GDI+ EMF Image Processing Integer Overflow (MS11-029) 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: Content Protection Violation
Attack Information: Microsoft GDI+ EMF image processing integer overflow (MS11-029)

VPN-1 NGX R65 & VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > Content Protection.
2. Select the following:

Microsoft GDI+ EMF Image Processing Integer Overflow (MS11-029)

3. In the configuration pane, under Settings > Mode, check Active.
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: Content Protection Violation
Attack Information: Microsoft GDI+ EMF image processing integer overflow (MS11-029)

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 EMF Parser protection group.
3. Click Microsoft GDI+ EMF Image Processing Integer Overflow (MS11-029) (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 Windows Metafile Alert/Filter
Description: Microsoft GDI+ EMF Image Processing Integer Overflow (MS11-029)

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