SSH sniffer attack poses minor risk UK security researchers have discovered hard-to-exploit cryptographic weaknesses in the Secure Shell (SSH) remote administration protocol. The shortcoming creates a potential means to recover the plain text of encrypted sessions, depending on remote access configurations. Potential attacks - which would take ninja-like hacking …
For openssh 3.9p1, 4.3p2 and 5.1p1 (the versions I have readily to hand) the default cipher would appear to be aes128-cbc. You can put a "Ciphers" stanza in you ~/.ssh/config to choose one of the stream ciphers -- see ssh_config(5). I've no idea what you do if you're using winders.
I expect there'll be a patch along shortly though.
The ninjas that can manage a man in the middle could possibly capture packets and decrypt them back to plain text. Which if they are lucky contains something nice to steal.
Sounds like a pretty limited flaw. I won't be going out of my way to fix it... I'll fix it by waiting for Debian to fix it for me ;-)
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