User context switch in sshd using RSAAuthentication

Ulrich Jakobus
Thu Dec 6 21:10:00 GMT 2001

May be here a reply that I got from the CVSNT list on this issue
(claiming that this is a problem of Cygwin/sshd):

On Thu, 6 Dec 2001 08:45:36 -0800, Terris wrote:

>Are you using SSH password authentication or SSH public key authentication?
>cygwin's openssh server has a bug whereby if you use public key
>authentication, the user is the user's that's running the sshd daemon rather
>than the remote user.  The cygwin folks claim it's due to a problem with NT,
>(funny how that's always the fall-back position for programmers)
>but it's actually a problem with their understanding of NT.  They need to
>look at the CVSNT pserver code.
>If you really have to use public key authentication, use
>VanDyke's vshell.



>On Thu, 6 Dec 2001 13:35:40 +0100, Corinna Vinschen wrote:
>>On Thu, Dec 06, 2001 at 01:26:28PM +0200, Ulrich Jakobus wrote:
>>> Hello,
>>> > I am running a CVS server on a Win2K machine connecting through
>>> SSH, where sshd is a standard installation of CYGWIN (i.e running
>>> under the SYSTEM account as configured by the ssh-config-host 
>>> script).
>>A Cygwin CVS or a native CVS?  If it's a native CVS, the
>>below message that auther is SYSTEM would be ok.  Changing
>>the user context w/o password uncovers a flaw in NT user name
>>handling.  Cygwin just workarounds that.
>>> However, when using the ~/.ssh/authorizedkeys file then CVS also
>>> works, no error messages. But the CVS log files contain
>>> date	2001.;	author SYSTEM;	state Exp;
>>> i.e. the user SYSTEM appears here.
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