Microsoft Apologist Apologizes for Microsoft
hillbilly1980 writes "Internet Week has published a counter article in response to the number of anti-monoculture security papers recently published. Unfortunately the author starts out by writing off the other papers as simply anti-Microsoft, unfortunate because his paper never gets past being more then just pro-Microsoft. One of his suggestions to secure your enterprise... turn off port 80." Probably the best thing to do to prevent disinformation from entering your company is to block articles by Rob Enderle. Update: 10/11 00:54 GMT by M : Note for the record that the original version of the article referred to blocking port 80; the article has now been edited to refer to port 135.
That's because he's got the wrong focus.
The monoculture risk is real when you're looking at the 64,000 view -- the entire population. They're not really all that much of a risk when you're dealing with, say, an enterprise's systems, and there's not that much benefit to them in that kind of environment (disregarding things like security devices for the moment).
We've used the agriculture analogy before to describe the issues around monocultures, so to continue to use it, we can say that his point is that monoculture isn't really an issue because when you're tilling a single field, it's a pain in the ass to put multiple crops on it. True, but that's not the point -- it's when you've got one crop on *ALL* the fields (all the enterprises) or at least a substantial portion of them that you get into a problem.
It may be funny, but sadly some people do really think that firewalling port 80 (or 8080, or 21, or 20, or 22, or 443 -- et cetera, ad nonsensum) is the answer indeed. Some people may be surprised (not Slashdot readers though, mind you) but there simply is no simple answer. There is no working snake oil. The buzzword of the week alone will not save you. What are my answers then? Simple. Read Security Focus. Read Crypto-Gram. Read Phrack. Read the underground IRC discussions. Read encrypted Usenet posts. Read the articles posted on Freenet. Read the books for god's sake! Read about systems. Read about networking protocols. Read about cryptography. Read about cryptanalysis. Employ honeypots in every network. Learn C. Learn Assembly (Intel as well as AT&T syntax, for different CPU architectures). Learn executable binary formats. Learn how to see polymorphic shellcodes in network packets hex dump, just looking at tcpdump output scroling on your terminal. Learn how to speak different protocols (http, smtp, pop3, etc.) with netcat, then making your own tcp packets, then your own hand-made ip packets, then ethernet, ppp and slip. Learn. Read. Then learn some more. Read. Read. Read. And learn the one most important thing: security is not easy. When everything fails, you are on your own.
Sincerely,
Pan Tarhei Hosé, PhD.
"Homo sum et cogito ergo odi profanum vulgus et libido."