Chapter 1 CHAPTER 1 Router Security In Webster’s dictionary the definition of hard is particularly relevant to the field of information security: Not easily penetrated or separated into parts; not yielding to pressure. By hardening a router, we make it difficult to penetrate and unyielding under the pressure of attacks. This chapter discusses why hardening network routers is one of the most important and overlooked aspects of Information Security. It will talk about what can go wrong when routers are left insecure and identify which routers are at the most risk from attack. Router Security? When asking about Information Security (InfoSec), most people immediately think about stolen credit cards, defaced web sites, and teenage hackers with names like B@D@pple. An InfoSec professional might extend the list to items like firewalls, Vir- tual Private Networks (VPN)s, penetration testing, and risk analysis. What is almost never listed is router security—network security, yes,
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