SMC Networks' Barricade Wireless Cable/DSL Broadband Router, version SMC7004VWBR, "combines a 4-port 10/100 Mbps dual-speed switch with Automatic MDI-MDIX feature, a high speed 11Mbps wireless access point, Stateful Packet Inspection (SPI) firewall security, network management, and Virtual Private Network (VPN) passthrough support into one convenient device." The SMC7004VWBR crashes when a specially formatted series of packets are sent to TCP port 1723 (PPTP) on its internal interface. Following the attack, the router remains unresponsive to requests on the wireless portions of the connected LAN, thus preventing users from accessing network resources.

SecuriTeam