TheO wrote:
From what we've seen so far, it seems that SFTP responds as expected.
That is all that I want to know.
From this point forward, we must try to close all other access ways
that does not belong to the scenario... but those are not excuses to
not implement the SFTP chroot.
Actually, my real case is even simpler than this. My SFTP users are all "friendly",
they are not unknown to me. It is a cooperative environment and to be honest, I
don't believe that they would harm my system by hacking into it.
But I don't want them to poke around and see the content of other directories
which
do not concern them, read my config files, see who other users are or list the
content
of my C: drive, ...
Yes so far the set up looks as expected. However, I would have preferred better
if
/cygdrive was not visible too even if they can't do anything with it. Ideally
there
should not be anything which could give them any hint on the type of my
platform.
if you are concerned about the "cygdrive" text there is a registry entry
where you can set that to whatever you want including "". That is what I
do. I would tell you what it is but my windows machine is not here right
now. Then when you "ls /" you get /c, /d etc instead of /cygdrive/c,
/cygdrive/d, etc.
cheers,
roger wells
I don't know who creates /cygdrive here. It is not required in this chroot'ed
environment. My guess, it is created by sftp-server at start up (regardless whether
it runs under chroot'ed environment or not). Maybe someone can confirm this
better than
me.
One more thing to add.
According to its RFC (4254), once a session is established, SSH allows the
client to specify
anycommand to execute or any subsystem to be spawned on the server side.
But I think I am safe here too because;
1. I only put sftp subsystem in the sshd_config so any other subsystem request
will fail.
2. No command can be executed since it requires /bin/bash (or another shell as
defined by
/etc/passwd) to be present in the jail.
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Roger Wells, P.E.
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