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Update Protection against Microsoft GDI+ Office Art Parsing Memory Corruption Vulnerability (MS09-062)

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Check Point Reference: CPAI-2009-218
Date Published:
Severity:
Source: Microsoft Security Bulletin MS09-062
Industry Reference(s): CVE-2009-2528
Protection Provided by: Security Gateway
  • R70
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Microsoft Office XP SP3
Vulnerability Description
A remote code execution vulnerability has been discovered in the way that GDI+ parses Microsoft Office Art in Excel files. Microsoft Excel is a popular spreadsheet application. A remote attacker could exploit this issue via a malformed Excel file. Successful exploitation of this vulnerability may allow execution of arbitrary code on a target system.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS09-062
Vulnerability Details
The vulnerability is due to an error in the code responsible for parsing Office Art Property Tables that allows an attacker to control a memory pointer with values read directly from the file. An attacker can exploit this flaw to execute arbitrary code on a vulnerable system via a malicious Excel file.

Protection Overview
This protection will detect and block the transferring of malicious Office Excel files over HTTP.

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 > Application Intelligence > Content Protection.
2. In the right pane, double-click the following protections:

Microsoft GDI+ Office Excel Art Parsing Memory Corruption (MS09-062)

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+ Office Excel art parsing memory corruption (MS09-062)

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 Microsoft Office Parser protection group.
3. Click Microsoft GDI+ Office Art Parsing Memory Corruption (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: Vulnerability in MS-Office file
Description: Microsoft GDI+ Office Art Parsing Memory Corruption