On Fre, 2008-03-28 at 17:27 +0100, Denys Vlasenko wrote:
[...]
> How can root use safely copy a file to user-owned directory?
>
> Obviously, "cp somefile /home/user/somefile"
>
> What will happen if user created malicious symlink
> /home/user/somefile -> /dev/sda? Should cp STILL write to
> symlink's target despite it being dangerous?
Not necessarily - it could point to some harmless file (still being
owned by that user).
Why not "rm /home/user/somefile" before he "cp" if one absolutely cares?
Bernd
--
Firmix Software GmbH http://www.firmix.at/
mobil: +43 664 4416156 fax: +43 1 7890849-55
Embedded Linux Development and Services
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