"ssh-host-config -y" w/CYGWIN set to ntsec..; ssh works but CYGWIN *not* set

Igor Pechtchanski pechtcha@cs.nyu.edu
Wed May 25 14:14:00 GMT 2005


On Wed, 25 May 2005, Corinna Vinschen wrote:

> On May 24 22:27, Brian Dessent wrote:
> > David Rothenberger wrote:
> >
> > > I have CYGWIN set in my sshd service and globally to "server", but when
> > > I ssh to my machine, CYGWIN is empty:
> > >
> > > % echo $CYGWIN
> > > server
> > > % ssh localhost
> > > Last login: Wed May  4 20:20:04 2005 from localhost
> > > % echo $CYGWIN
> >
> > Hmm, weird.  I see the same thing here too.  Not sure if it was always
> > this way or a recent change in the DLL / cygrunsrv / sshd.
>
> It's by design of sshd, right now.  Even though cygrunsrv propagates
> this environment to the child applications, sshd doesn't.
>
> This is a change to sshd which had been requested upstream.  The main
> developers felt that propagating all SYSTEM environment to the
> unprivileged child applications has to be treated as unsecure.
> Therefore I implemented to propagate only the core Windows environment
> to child processes back in 3.9, AFAIR.

I would've thought that CYGWIN is a core environment variable (not a
Windows one, of course).  I'm not sure, though, whether it would be
correct to propagate it -- one could argue either way...
	Igor
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