Signature Detail

DHCP: Missing End of Options

This protocol anomaly is a DHCP message that does not have an End Of Options (tag 255). This can be a truncated UDP message or an attempt by a malicious client to exploit the server.

Extended Description

Microsoft Windows DHCP Client service is prone to a remote code-execution vulnerability because the service fails to properly bounds-check user-supplied input before copying it to an insufficiently sized memory buffer. This vulnerability allows remote attackers to execute arbitrary machine code with SYSTEM-level privileges on affected computers. This facilitates the complete compromise of affected computers.

Affected Products

• Microsoft windows_2000_advanced_server SP1
• Microsoft windows_2000_advanced_server SP2
• Microsoft windows_2000_advanced_server SP3
• Microsoft windows_2000_advanced_server SP4
• Microsoft windows_2000_advanced_server
• Microsoft windows_2000_datacenter_server SP1
• Microsoft windows_2000_datacenter_server SP2
• Microsoft windows_2000_datacenter_server SP3
• Microsoft windows_2000_datacenter_server SP4
• Microsoft windows_2000_datacenter_server
• Microsoft windows_2000_professional SP1
• Microsoft windows_2000_professional SP2
• Microsoft windows_2000_professional SP3
• Microsoft windows_2000_professional SP4
• Microsoft windows_2000_professional
• 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_edition_itanium
• 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_edition_itanium
• Microsoft windows_server_2003_enterprise_x64_edition
• Microsoft windows_server_2003_standard_edition SP1
• Microsoft windows_server_2003_standard_edition
• Microsoft windows_server_2003_standard_x64_edition
• Microsoft windows_server_2003_web_edition SP1
• Microsoft windows_server_2003_web_edition
• Microsoft windows_xp
• Microsoft windows_xp_home SP1
• Microsoft windows_xp_home SP2
• Microsoft windows_xp_home
• Microsoft windows_xp_media_center_edition SP1
• Microsoft windows_xp_media_center_edition SP2
• Microsoft windows_xp_media_center_edition
• Microsoft windows_xp_professional SP1
• Microsoft windows_xp_professional SP2
• Microsoft windows_xp_professional
• Microsoft windows_xp_professional_x64_edition
• Microsoft windows_xp_tablet_pc_edition SP1
• Microsoft windows_xp_tablet_pc_edition SP2
• Microsoft windows_xp_tablet_pc_edition
• Nortel_networks centrex_ip_client_manager 7.0.0
• Nortel_networks centrex_ip_client_manager 8.0.0
• Nortel_networks centrex_ip_client_manager 9.0
• Nortel_networks centrex_ip_element_manager 7.0.0
• Nortel_networks centrex_ip_element_manager 8.0.0
• Nortel_networks centrex_ip_element_manager 9.0.0
• Nortel_networks contact_center
• Nortel_networks contact_center_express
• Nortel_networks contact_center_manager
• Nortel_networks enterprise_network_management_system
• Nortel_networks media_processing_server
• Nortel_networks multiservice_data_manager
• Nortel_networks optivity_telephony_manager_tm-cs1000
• Nortel_networks periphonics
• Nortel_networks self-service_mps_100
• Nortel_networks self-service_mps_1000
• Nortel_networks self-service_mps_500
• Nortel_networks self-service_speech_server
• Nortel_networks symposium_agent
• Nortel_networks symposium_network_control_center_(ncc)
• Nortel_networks symposium_tapi_service_provider
• Nortel_networks web-centric_voice_application_development_suite

References

• BugTraq: 18923
• CVE: CVE-2006-2372
• URL: http://www.ietf.org/rfc/rfc1533.txt
• URL: http://www.ietf.org/rfc/rfc1497.txt
• URL: http://www.microsoft.com/technet/security/Bulletin/MS06-036.mspx