DNS cache poisoning exploit released
A quick note to warn you that the first code sample has been released to try and exploit the recently announced DNS cache poisoning vulnerability. While most users will be relying on their ISP etc to ensure they have patched the hole, you should also make sure that you have applied any required OS patches/updates (e.g. Windows MS Security Bulletin MS08-037).
Also – you should note that while attackers may be able to redirect you to a bogus IP, they will not be able to replicate a digitally trusted security certificate. So if you go to your online banking site and see that you are on an ‘http’ page or if you get the IE7 warning page about untrusted/mismatched certificates then you should be careful. Of course, many sites use Shared certificates so it is quite common to see this warning message but you shouldn’t expect to see it when using online banking or similar.
