Signature Detail

NETBIOS: WPAD WINS Registration Query

This signature detects attempts to register WPAD to the Windows Internet Name Service (WINS). This could indicate a possible "Man in the Middle" attack. An attacker could control the WINS database to forward users to a machine that they control.

Extended Description

The Microsoft Windows WINS Server is prone to an access-validation vulnerability because the software fails to properly restrict access when defining WPAD (Web Proxy Autodiscovery Protocol) and ISATAP (Intra-Site Automatic Tunnel Addressing Protocol) entries. An authenticated attacker may exploit this issue to create a WPAD or ISATAP WINS entry. This may aid in man-in-the-middle and spoofing attacks. Other attacks are also possible.

Affected Products

• Avaya Messaging Application Server MM 1.1
• Avaya Messaging Application Server MM 2.0
• Avaya Messaging Application Server MM 3.0
• Avaya Messaging Application Server MM 3.1
• Avaya Messaging Application Server
• Microsoft Windows 2000 Server SP1
• Microsoft Windows 2000 Server SP2
• Microsoft Windows 2000 Server SP3
• Microsoft Windows 2000 Server SP4
• Microsoft Windows 2000 Server
• Microsoft Windows Server 2003 Datacenter Edition SP1
• Microsoft Windows Server 2003 Datacenter Edition
• Microsoft Windows Server 2003 Datacenter Edition Itanium SP1
• 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
• Microsoft Windows Server 2003 Enterprise Edition Itanium SP1
• 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 Standard Edition SP1
• 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 SP2
• Microsoft Windows Server 2003 Web Edition
• Microsoft Windows Server 2003 x64 SP1
• Microsoft Windows Server 2003 x64 SP2

References

• CVE: CVE-2009-0094
• URL: http://www.microsoft.com/technet/security/Bulletin/MS09-008.mspx