sshd permits logon using disabled user?

[Corinna Vinschen]

On Jan 29 13:12, Corinna Vinschen wrote:
> On Jan 29 12:56, Corinna Vinschen wrote:
> > On Jan 28 14:49, Bill Stewart wrote:
> > > On Mon, Jan 28, 2019 at 1:14 PM Bill Stewart <bstewart@iname.com> wrote:
> > > 
> > > > Thank you. I wanted to point out that I have not had a chance to test
> > > > using a non-domain computer yet. I will try that scenario as well.
> > > 
> > > Hi Corinna,
> > > 
> > > I unjoined a Windows 7 machine from the domain and tested as follows:
> > > 
> > > 1. Ran setup and installed cygwin
> > > 
> > > 2. Ran sshd-host-config and answered "no" to install as service
> > > 
> > > 3. Installed service using this command line:
> > > 
> > > cygrunsrv -I cygsshd -d "Cygwin SSH Service" -p "/usr/sbin/sshd" -a
> > > "-D" -y "tcpip"
> > > 
> > > 4. Renamed cygwin1.dll to a backup name and replaced with copy from
> > > latest snapshot
> > > 
> > > When I try to start the service, I get error 1067 ("the process
> > > terminated unexpectedly"). Event log states:
> > > 
> > > cygsshd: PID nnnn: starting service `cygsshd' failed: fork: 11,
> > > Resource temporarily available
> > > 
> > > If I start bash elevated and run this:
> > > 
> > > /usr/sbin/sshd -d
> > > 
> > > It starts and listens on port 22 and I can connect.
> > > 
> > > Thoughts?
> > 
> > I can reproduce this on W7, while it works fine on W10.  Unfortunately I
> > haven't much time today and tomorrow but I'll try to get around to it
> > Thursday or Friday.
> > 
> > In the meantime, can you try the snapshots which one started to
> > introduce this issue?
> 
> Never mind, I found the culprit.

Please try the snapshots I just uploaded to https://cygwin.com/snapshots/
They should fix the problem.  It turned out that I restricted the
permissions of processes too much for Windows 7.  The same code works
fine since Windows 8.


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
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