On Fri, 18 Nov 2011 06:10:00 PST, Dan Kaminsky said: > OK, seriously. If you're sitting in front of a machine that's presenting > you a login prompt, you've got enough privileges to insert a bootable > USB/CD and pull all the data / make yourself an account (FDE/Bios PW > notwithstanding). Right. Which is why a passwordless guest account available to people who have physical access isn't such a big deal. The problem is that if you manage to get ssh enabled, there's not *that* much stopping the account from being used from Zanzibar. Some operating systems (AIX, for instance) allowed tagging a userid as "local access only", or even "may only login on tty 3, 5, and 23". Adding that sort of a tag to the guest account would help the situation by adding some security in depth.
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