Why All The Hype About 0day?
nuthinbutspam writes "Michael Sutton has up an interesting post on the security vulnerabilities that we really need to be concerned about. According to Sutton, it's not the new ones that are scary, it's the old ones that have long since been forgotten. He illustrates his point by walking through an example where he uses Google and Yahoo! to identify 50 web servers that are wide open to attack. The list includes an ivy league school, various colleges and a company traded on the NYSE. Sobering stuff."
I wonder if his webserver was one of the 50.
I think that qualifies as a well duh. If you haven't secured yourself against old vulnerabilities, worrying about zero-day vulnerabilities won't do you much good. On the other hand, if you're on top of security, staying in touch with the latest vulnerabilities has some real value. It's common sense. To use a bad analogy, if someone is suffering from a hear attack, you don't stop treating them because you notice they have a scratch that needs a bandage.
If you, as the admin, haven't secured your systems for KNOWN vulnerabilities, then you probably aren't one of the people concerned about 0 day exploits.
On the other hand, those of us who DO secure their systems ARE concerned. And rightfully so.
Michael Sutton has up an interesting post on the security vulnerabilities that we really need to be concerned about. According to Sutton, it's not the new ones that are scary, it's the old ones that have long since been forgotten.
The old ones may be the most worrying to people tracking security in general. They are not, however, the most worrying to those of us looking to secure our own networks, since we know how to stop them. It is a matter of control. I can patch and Firewall, and ACL away any old worms and detect them if they get through. I might be helpless, however, if a new, zero day worm hits.
You just HAD to drag the French into this.
If this signature is witty enough, maybe somebody will like me.
The term "zero day" refers to the amount of time between a patch being available and an exploit being in the wild. That's all fine and dandy except it propagates the idea that exploits are never in the wild before a patch is available. It's not the "zero day" exploits that have me worried--it's the "negative three months" exploits.
I have been in a meeting with a Microsoft security "expert" who seriously claimed that exploits are only be produced by reverse-engineering Microsoft's patches, and that the primary risk is that the time it takes to reverse-engineer a patch is decreasing. If that was really true, Microsoft could stop all exploits immediately by never releasing any more patches. The primary risk is that there's a flaw in the software, obviously, and the clock starts ticking the moment people start using the buggy software, not the moment Microsoft tells us to patch it.
However, admitting that Microsoft is REACTING to hackers rather than the other way around makes them look kinda dumb. Thus the "zero day" myth.
Why not just attach a spreading mechanism and call it a worm.