spoof rsa fingerprint

[Patrick O'Callaghan]

On Tue, 2009-11-17 at 08:33 -0800, Gordon Messmer wrote:
> On 11/17/2009 04:53 AM, Patrick O'Callaghan wrote:
> >
> > It's my understanding that the password would still be sent over an
> > encrypted channel (using the original host's public key), so I don't see
> > the problem.
> >    
> 
> There is no original host in the hypothesized scenario.  There's an 
> attacker whose public key has a fingerprint that matches the original 
> host.  The victim connects to the attacker instead of the original 
> host.  Since the original host isn't involved, the original host's key 
> won't be either.

No, the OP's scenario is that there *was* an original host, which
presumably set up the key pair and established a fingerprint. That's the
assumption behind everything I've been saying.

poc