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Network Security Secure-Shell
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SSH Key Exchange Algorithm

Subject: SSH Key Exchange Algorithm
Date: Fri, 15 Feb 2008 01:16:02 -0800 (PST)

by a vulnerability scanning I've get following issue:

Problem Description:
The Secure Shell 2 (SSH2) protocol is a presentation layer protocol used to
provide secure client-server communication. 

The SSH2 protocol specification requires that a SSH2 server support the
diffie-hellman-group1-sha1 key exchange algorithm. This key exchange
algorithm is considered strong, but faces a potential weakness in that the
same prime number is used for all key exchanges. 

An alternative key exchange algorithm, diffie-hellman-exchange-group-sha1,
provides enhanced security by allowing for the prime number to be specified
during key exchange. 

The target SSH2 server supports the diffie-hellman-group1-sha1 algorithm. 

Has anybody an idea how can I fix this issue?
Thanks for Help!

Karl
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