What is ARP Poisoning?
Hackers lie. Skillful hackers lie well. And well-rounded hackers can lie both to people and to machines. Lying to people, known as “social engineering,” involves tactics (detailed at length by convicted hacker Kevin Mitnick) such as posing as a company’s employee so the company’s real employees will blab secrets freely. Lying to machines involves lots of different techniques, and a commonly used one — ARP Cache Poisoning — is the focus of this article. ARP poisoning enables local hackers to cause general networking mayhem. Because it’s mostly “incurable,” every administrator should be aware of how this attack works.
