Microsoft Windows Protection Engine Remote Heap Overflow
| Notification Type: |
IBM Internet Security Systems Protection Advisory |
| Notification Date: |
Feb 13, 2007 |
| Notification Version: |
1.1 |
| |
|
| Name: |
Microsoft Windows Protection Engine Remote Heap Overflow |
Public disclosure/
In the wild date: |
Feb 13, 2007 (vuln) |
| CVE: |
CVE-2006-5270 |
| Description: |
IBM X-Force has discovered a remote code execution vulnerability in Microsoft Windows Protection, a default component of Windows Live
OneCare, Antigen, Forefront Security, and Windows Defender, including Windows Defender for Vista. |
| Discoverers/Researchers: |
Alex Wheeler and Neel Mehta, IBM X-Force |
|
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ISS Coverage |
| Product |
Content Version |
| Proventia Desktop |
x.x.xxx.1950 |
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Detailed Description |
| Business Impact: |
Compromise of machines using affected versions of the Microsoft Protection Engine library may lead to exposure of confidential information, loss of productivity, and further compromise. Successful exploitation grants an attacker remote, system-level privileges. |
| CVSS: |
Base Score: |
10.0 |
| |
Access Vector: |
Remote |
| Access Complexity: |
Low |
| Authentication: |
Not Required |
| Confidentiality Impact: |
Complete |
| Integrity Impact: |
Complete |
| Availability Impact: |
Complete |
| Impact Bias: |
Normal |
| Adjusted Temporal Score: |
7.4 |
| |
Exploitability: |
Unproven |
| Remediation Level: |
Official Fix |
| Report Confidence: |
Confirmed |
| Affected Products: |
Affected Software:
- Windows Live OneCare
- Microsoft Antigen for Exchange Server 9.x
- Microsoft Antigen for SMTP Server 9.x
- Microsoft Windows Defender
- Microsoft Windows Defender x64 Edition
- Microsoft Windows Defender in Windows Vista
- Microsoft Forefront Security for Exchange Server 10
- Microsoft Forefront Security for SharePoint Server 10
Affected Components:
- Microsoft Malware Protection Engine
|
| Technical Description: |
This vulnerability is in the Microsoft Windows Protection Engine, a shared library designed to parse data streams for malware.
By sending a specially crafted PDF file, an attacker can trigger a heap overflow resulting in remote code execution. This file may be sent over common protocols, such as SMTP, HTTP, FTP, etc. In many cases, this vulnerability may be triggered without user interaction.
This vulnerability exists because an arbitrary integer from a PDF file is used in a memory allocation calculation without proper bounds checking. As a result, an attacker may provide a large integer value creating an integer overflow in the calculation. This attack causes a heap overflow with arbitrary file data. There are several structures on the heap that an attacker may abuse to obtain remote code execution. |
| Remediation: |
Microsoft has provided patches for all affected products. See References for details. |
|
References |
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Revision History |
| 1.0 |
Initial advisory. |
| 1.1 |
Revised CVSS score. |
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* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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About IBM Internet Security Systems
IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia® integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force® research and development team an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.
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