Guillermo Marro

Oct. 16, 2002

Title: "Vulnerabilities in some Data Link Layer Protocols"

Abstract:
Given the latest trends in broadband services providers to place into production Layer-2 (L2) networks for the last mile realm, attacks focused at L2 services might become more popular, inevitably affecting services in upper layers such as network, transport and application, that trust on L2 services being operational. This work concentrates on potential pitfalls in the Spanning Tree Protocol (STP) -- a ubiquitous protocol that glues together a network of bridges interconnecting segmented LANs -- and its successor the Rapid Spanning Tree Protocol (RSTP).