$HOME/bin
Ed Greshko
Ed.Greshko at greshko.com
Mon Jun 4 12:39:47 UTC 2007
Tim wrote:
> Tim:
>>> The other catch is that being able to execute stuff in your home folder
>>> is a bit of a security risk.
>
> Andreas Bernauer:
>> On what theory do you base this (IMHO weird) statement?
>
> Don't you read any of the security notices? Mounting /home as noexec is
> a very old, and wise, technique for making a system more secure. The
> same goes for mounting /tmp and /var noexec. Why do you think there's
> an option to mount a partition with the noexec parameter?
>
> If a user can create and run a program, they can do much more to a
> system than one who can't. Ordinarily, they can't do that. At the
> simplest level they can stuff up their own files, or bog a system down
> with a heavy workload. But if you exploit a software fault, at the same
> time, you can do worse.
>
> All it takes is to browse a website that exploits your browser, and
> there's an unknown program running on your computer. But without any
> execute permissions, it can't do a thing.
I'm sorry.... Are you saying that mounting /home as noexec is a good thing
since folks that are compiling/testing programs won't be allowed to get
their work done?
Sorry a bit confused here.... Sure, it is only Monday.
--
QOTD:
All I want is a little more than I'll ever get.
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