Signature Detail

SMB: Microsoft Windows BROWSER ELECTION Buffer Overflow

This signature detects attempts to exploit a known flaw in Microsoft Windows Browser Protocol Handler. It is due to a boundary error in the kernel component of the Windows Browsing service that is responsible for handling the incoming datagrams. An attacker who successfully exploited this vulnerability could execute arbitrary code and take complete control of an affected system.

Extended Description

Microsoft Windows is prone to a remote heap-based buffer-overflow vulnerability because the application fails to perform adequate boundary-checks on user-supplied data. Successful exploits can allow attackers to execute arbitrary code with SYSTEM-level privileges. Successfully exploiting this issue will result in the complete compromise of affected computers. Failed exploit attempts will result in a denial-of-service condition.

Affected Products

• Avaya Aura Conferencing 6.0 SP1 Standard
• Avaya Aura Conferencing 6.0 Standard
• Avaya CallPilot 4.0
• Avaya CallPilot 5.0
• Avaya Communication Server 1000 Telephony Manager 3.0
• Avaya Communication Server 1000 Telephony Manager 4.0
• Avaya Meeting Exchange 5.0
• Avaya Meeting Exchange 5.0.0.0.52
• Avaya Meeting Exchange 5.0 SP1
• Avaya Meeting Exchange 5.0 SP2
• Avaya Meeting Exchange 5.1
• Avaya Meeting Exchange 5.1 SP1
• Avaya Meeting Exchange 5.2
• Avaya Meeting Exchange 5.2 SP1
• Avaya Meeting Exchange 5.2 SP2
• Avaya Meeting Exchange - Client Registration Server
• Avaya Meeting Exchange - Recording Server
• Avaya Meeting Exchange - Streaming Server
• Avaya Meeting Exchange - Web Conferencing Server
• Avaya Meeting Exchange - Webportal
• Avaya Messaging Application Server 4
• Avaya Messaging Application Server 5
• Microsoft Active Directory
• Microsoft Windows 7
• Microsoft Windows 7 Beta
• Microsoft Windows 7 RC
• Microsoft Windows 7 for 32-bit Systems
• Microsoft Windows 7 for Itanium-based Systems
• Microsoft Windows 7 for x64-based Systems
• Microsoft Windows 7 Home Premium
• Microsoft Windows 7 Professional
• Microsoft Windows 7 Starter
• Microsoft Windows 7 Ultimate
• Microsoft Windows 7 XP Mode
• Microsoft Windows Server 2008 R2
• Microsoft Windows Server 2003 Gold X64-Standard
• Microsoft Windows Server 2003 R2
• Microsoft Windows Server 2003 R2 Compute Cluster
• Microsoft Windows Server 2003 R2 Datacenter
• Microsoft Windows Server 2003 R2 Enterprise
• Microsoft Windows Server 2003 R2 Platfom SDK
• Microsoft Windows Server 2003 R2 Standard
• Microsoft Windows Server 2003 R2 Storage
• Microsoft Windows Server 2003 R2 X64
• Microsoft Windows Server 2003 R2 X64-Datacenter
• Microsoft Windows Server 2003 R2 X64-Enterprise
• Microsoft Windows Server 2003 R2 X64-Standard
• Microsoft Windows Server 2003 SP1
• Microsoft Windows Server 2003 Sp1 Compute Cluster
• Microsoft Windows Server 2003 SP1 Platform SDK
• Microsoft Windows Server 2003 Sp1 Storage
• Microsoft Windows Server 2003 SP2
• Microsoft Windows Server 2003 Sp2 Compute Cluster
• Microsoft Windows Server 2003 Sp2 Datacenter
• Microsoft Windows Server 2003 Sp2 Enterprise
• Microsoft Windows Server 2003 Sp2 Storage
• Microsoft Windows Server 2003 Datacenter Edition SP1
• Microsoft Windows Server 2003 Datacenter Edition SP1 Beta 1
• Microsoft Windows Server 2003 Datacenter Edition
• Microsoft Windows Server 2003 Datacenter Edition Itanium SP1
• Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Beta 1
• Microsoft Windows Server 2003 Datacenter Edition Itanium
• Microsoft Windows Server 2003 Datacenter x64 Edition SP2
• Microsoft Windows Server 2003 Datacenter x64 Edition
• Microsoft Windows Server 2003 Enterprise Edition SP1
• Microsoft Windows Server 2003 Enterprise Edition SP1 Beta 1
• Microsoft Windows Server 2003 Enterprise Edition
• Microsoft Windows Server 2003 Enterprise Edition Itanium SP1
• Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Beta 1
• Microsoft Windows Server 2003 Enterprise Edition Itanium SP2
• Microsoft Windows Server 2003 Enterprise Edition Itanium Sp2 Itanium
• Microsoft Windows Server 2003 Enterprise Edition Itanium
• Microsoft Windows Server 2003 Enterprise x64 Edition SP2
• Microsoft Windows Server 2003 Enterprise x64 Edition
• Microsoft Windows Server 2003 Itanium SP1
• Microsoft Windows Server 2003 Itanium SP2
• Microsoft Windows Server 2003 Itanium
• Microsoft Windows Server 2003 R2 Datacenter Edition
• Microsoft Windows Server 2003 R2 Datacenter Edition SP1
• Microsoft Windows Server 2003 R2 Datacenter Edition SP2
• Microsoft Windows Server 2003 R2 Enterprise Edition
• Microsoft Windows Server 2003 R2 Enterprise Edition SP1
• Microsoft Windows Server 2003 R2 Enterprise Edition SP2
• Microsoft Windows Server 2003 R2 Standard Edition
• Microsoft Windows Server 2003 R2 web Edition
• Microsoft Windows Server 2003 Standard Edition SP1
• Microsoft Windows Server 2003 Standard Edition SP1 Beta 1
• Microsoft Windows Server 2003 Standard Edition SP2
• Microsoft Windows Server 2003 Standard Edition
• Microsoft Windows Server 2003 Standard x64 Edition
• Microsoft Windows Server 2003 Terminal Services
• Microsoft Windows Server 2003 Web Edition SP1
• Microsoft Windows Server 2003 Web Edition SP1 Beta 1
• Microsoft Windows Server 2003 Web Edition SP2
• Microsoft Windows Server 2003 Web Edition
• Microsoft Windows Server 2003 x64 SP1
• Microsoft Windows Server 2003 x64 SP2
• Microsoft Windows Server 2008 SP2 Beta
• Microsoft Windows Server 2008 - Sp2 Enterprise X64
• Microsoft Windows Server 2008 Datacenter Edition Release Candidate
• Microsoft Windows Server 2008 Datacenter Edition SP2
• Microsoft Windows Server 2008 Datacenter Edition
• Microsoft Windows Server 2008 Enterprise Edition Release Candidate
• Microsoft Windows Server 2008 Enterprise Edition SP2
• Microsoft Windows Server 2008 Enterprise Edition
• Microsoft Windows Server 2008 for 32-bit Systems SP2
• Microsoft Windows Server 2008 for 32-bit Systems
• Microsoft Windows Server 2008 for Itanium-based Systems R2
• Microsoft Windows Server 2008 for Itanium-based Systems SP2
• Microsoft Windows Server 2008 for Itanium-based Systems
• Microsoft Windows Server 2008 for x64-based Systems R2
• Microsoft Windows Server 2008 for x64-based Systems SP2
• Microsoft Windows Server 2008 for x64-based Systems
• Microsoft Windows Server 2008 R2 Datacenter
• Microsoft Windows Server 2008 R2 Itanium
• Microsoft Windows Server 2008 R2 x64
• Microsoft Windows Server 2008 Standard Edition Itanium
• Microsoft Windows Server 2008 Standard Edition Release Candidate
• Microsoft Windows Server 2008 Standard Edition SP2
• Microsoft Windows Server 2008 Standard Edition X64
• Microsoft Windows Server 2008 Standard Edition
• Microsoft Windows Vista 1.0
• Microsoft Windows Vista 2.0
• Microsoft Windows Vista 3.0
• Microsoft Windows Vista Beta
• Microsoft Windows Vista Beta 1
• Microsoft Windows Vista Beta 2
• Microsoft Windows Vista Business
• Microsoft Windows Vista Business SP1
• Microsoft Windows Vista Business SP2
• Microsoft Windows Vista Enterprise
• Microsoft Windows Vista Enterprise SP1
• Microsoft Windows Vista Enterprise SP2
• Microsoft Windows Vista Home Basic
• Microsoft Windows Vista Home Basic SP1
• Microsoft Windows Vista Home Basic SP2
• Microsoft Windows Vista Home Premium
• Microsoft Windows Vista Home Premium SP1
• Microsoft Windows Vista Home Premium SP2
• Microsoft Windows Vista SP1
• Microsoft Windows Vista SP2
• Microsoft Windows Vista SP2 Beta
• Microsoft Windows Vista Ultimate
• Microsoft Windows Vista Ultimate SP1
• Microsoft Windows Vista Ultimate SP2
• Microsoft Windows Vista
• Microsoft Windows Vista Business 64-bit edition SP1
• Microsoft Windows Vista Business 64-bit edition SP2
• Microsoft Windows Vista Business 64-bit edition
• Microsoft Windows Vista December CTP Gold
• Microsoft Windows Vista December CTP SP1
• Microsoft Windows Vista December CTP SP2
• Microsoft Windows Vista December CTP X64
• Microsoft Windows Vista December CTP
• Microsoft Windows Vista Enterprise 64-bit edition SP1
• Microsoft Windows Vista Enterprise 64-bit edition SP2
• Microsoft Windows Vista Enterprise 64-bit edition
• Microsoft Windows Vista Home Basic 64-bit edition SP1
• Microsoft Windows Vista Home Basic 64-bit edition Sp1 X64
• Microsoft Windows Vista Home Basic 64-bit edition SP2
• Microsoft Windows Vista Home Basic 64-bit edition Sp2 X64
• Microsoft Windows Vista Home Basic 64-bit edition
• Microsoft Windows Vista Home Premium 64-bit edition SP1
• Microsoft Windows Vista Home Premium 64-bit edition SP2
• Microsoft Windows Vista Home Premium 64-bit edition
• Microsoft Windows Vista Ultimate 64-bit edition SP1
• Microsoft Windows Vista Ultimate 64-bit edition SP2
• Microsoft Windows Vista Ultimate 64-bit edition
• Microsoft Windows Vista x64 Edition SP1
• Microsoft Windows Vista x64 Edition SP2
• Microsoft Windows Vista x64 Edition
• Microsoft Windows XP Embedded SP3
• Microsoft Windows XP Home SP3
• Microsoft Windows XP Media Center Edition SP3
• Microsoft Windows XP Professional SP3
• Microsoft Windows XP Professional x64 Edition SP3
• Microsoft Windows XP Service Pack 3
• Microsoft Windows XP Tablet PC Edition SP3

References

• BugTraq: 46360
• CVE: CVE-2011-0654
• URL: http://www.microsoft.com/kb/2511455