(MS09-050) Vulnerabilities in SMBv2 Could Allow Remote Code Execution (975517)
DESCRIPTION
This update resolves three reported vulnerabilities in Server Message Block Version 2 (SMBv2) -- one publicly disclosed and two in private. Successful exploitation of the said vulnerabilities could lead to different results, including remote code execution.
This update correctly validates the fields inside SMBv2 packets, which corrects the way SMB handles the command value in SMB packets and the way SMB parses specially crafted SMB packets.
Installing standard firewall protection is advised to help protect networks from attacks.
TREND MICRO PROTECTION INFORMATION
Trend Micro Deep Security shields the following vulnerabilities using the specified rules. Trend Micro customers using OfficeScan with the Intrusion Defense Firewall plugin are also protected from attacks using these vulnerabilities.
| Microsoft Bulletin ID | Vulnerability ID | Rule Number & Title | Deep Security Pattern Version | Deep Security Pattern Release Date |
|---|---|---|---|---|
| MS09-050 | CVE-2009-2526 | 1003761 - SMBv2 Infinite Loop Vulnerability | 09-030 | Oct 14, 2009 |
| MS09-050 | CVE-2009-2532 | 1003712 - Windows Vista SMB 2.0 Negotiate Protocol Request Remote | 09-027 | Sep 9, 2009 |
| MS09-050 | CVE-2009-3103 | 1003712 - Windows Vista SMB 2.0 Negotiate Protocol Request Remote | 09-027 | Sep 9, 2009 |
SOLUTION
AFFECTED SOFTWARE AND VERSION
- Windows Server 2008 for 32-bit Systems
- Windows Server 2008 for 32-bit Systems Service Pack 2
- Windows Server 2008 for Itanium-based Systems
- Windows Server 2008 for Itanium-based Systems Service Pack 2
- Windows Server 2008 for x64-based Systems
- Windows Server 2008 for x64-based Systems Service Pack 2
- Windows Vista
- Windows Vista Service Pack 1
- Windows Vista Service Pack 2
- Windows Vista x64 Edition
- Windows Vista x64 Edition Service Pack 1
- Windows Vista x64 Edition Service Pack 2