A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Security Issues in PIM-SM Link-local Messages
Author(s) : J. Atwood, et al.
Filename : draft-atwood-pim-sm-linklocal-00.txt
Pages : 8
Date : 2004-10-19
This document proposes some modifications to the Internet-Draft for
Protocol Independent Multicast - Sparse Mode (PIM-SM) Protocol
regarding security issues of its link-local messages. To protect
these link-local messages, in the Internet-Draft for PIM-SM a
security mechanism has been proposed that uses the IPsec
Authentication Header (AH) protocol. While using IPsec AH protocol,
the anti-replay mechanism has been disabled. This compromise makes
PIM-SM vulnerable to Denial of Service (DoS) attack. In this
document, a new proposal is presented to protect PIM link-local
messages while activating the anti-replay mechanism as well. This
proposal builds on the new Security Association lookup method that
has been specified in the Internet-Draft that revises the AH
protocol.
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