Hi Norbert!

On 5/23/06, Norbert P. Copones <[EMAIL PROTECTED]> wrote:
he/she can copy the necessary libs/bin/deps to the chroot dir. why
mount-bind the real /? the security essence of chroot will be lost. still
if its root process, its very possible for the process to escape out of
chroot. its a very known bug/limitation of chroot.

The copy can happen, yes, if s/he can get out of the chroot in the
first place, or when s/he can get the binaries from somewhere (say
over a network) and/or build from source.  But then again, you
wouldn't want to have build tools in a chroot, unless it's a dchroot
and you're a packager ;)

Yeah, it is perhaps quite possible for a uid-0 process to get out of
the chroot, which is why a chroot must be properly configured in the
first place, having just the bare metal to run the allowed apps per
the site's policy.  Again, a good /etc/sudoers can help.  I also hear
on the grapevine that there's a fakeroot-aware sudo in the works
too...

As for the nowhere-land bits, I have to agree with you, my bad :/  I'm
used to building chroots within chroots within chroots (or, more
precisely, pbuilder in dchroot in dchroot)... don't ask me why ;P

--
Zak B. Elep  ||  http://zakame.spunge.org
[EMAIL PROTECTED]  ||  [EMAIL PROTECTED]
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