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Update Protection against Microsoft MPEG Layer-3 Audio Decoder AVI File Stack Overflow Vulnerability (MS10-026)

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Check Point Reference: CPAI-2010-060
Date Published:
Severity:
Source: Microsoft Security Bulletin MS10-026
Industry Reference(s): CVE-2010-0480
Protection Provided by: Security Gateway
  • R70
VPN-1
  • NGX R65
VSX
  • NGX R65
Who is Vulnerable?
MPEG Layer-3 Codec for Microsoft DirectShow on:
Microsoft Windows 2000 SP4
Windows XP SP2
Windows XP SP3
Windows XP Professional x64 Edition SP2
Windows Server 2003 SP2
Windows Server 2003 x64 Edition SP2
Windows Vista
Windows Vista SP1
Windows Vista SP2
Windows Vista x64 Edition
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
Vulnerability Description
A stack overflow vulnerability has been reported in the way that Microsoft MPEG Layer-3 codecs handle AVI media files. The vulnerable MPEG Layer-3 audio codecs are the MPEG Layer-3 Audio Codec for Microsoft DirectShow (l3codecx.ax) and the Fraunhofer IIS MPEG Layer-3 ACM codecs (L3codeca.acm and L3codecp.acm). These MPEG Layer-3 audio codecs are provided along with Windows Media files on affected versions of Microsoft Windows. A remote attacker can exploit this issue via a specially crafted AVI file containing an MPEG Layer-3 audio stream. Successful exploitation may allow execution of arbitrary code on the vulnerable system.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS10-026
Vulnerability Details
The vulnerability is due to an error in Microsoft MPEG Layer-3 audio codecs that fail to properly handle specially crafted AVI files containing an MPEG Layer-3 audio stream. A remote attacker could trigger this flaw by convincing the victim to open a specially crafted AVI file. Successful exploitation of this issue may allow execution of arbitrary code once the malformed file is opened on a vulnerable system.

Protection Overview
This protection detects and blocks the transferring of malformed AVI 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 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 Microsoft MPEG Layer-3 Audio Decoder AVI File Stack Overflow (MS10-026) 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 MPEG Layer-3 audio decoder AVI file stack overflow (MS10-026)

VPN-1 NGX R65 & VPN-1 VSX NGX R65

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

Microsoft MPEG Layer-3 Audio Decoder AVI File Stack Overflow (MS10-026)

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 MPEG Layer-3 audio decoder AVI file stack overflow (MS10-026)