OpenSSH daemon security bug?

Michael Stone mstone at mathom.us
Thu Jan 7 03:44:49 EST 2010


On Wed, Jan 06, 2010 at 09:35:59AM -0700, you wrote:
>Michael Stone wrote:
>> I won't challenge anyone else's experience, but I will say that I have  
>> not seen attackers trying to exhaustively brute-force passwords via ssh.  
>> Against a shadow file, sure, but the math on doing that over the network  
>> even with the default configuration that forces a new connection (and  
>> handshake overhead) after a few failures isn't pretty.
>
>My logs are filled with attackers trying dictionary guessing attacks.

Agreed. (Dictionary guessing != exhaustive brute force.)

>They have no hope of getting into the machine.  I can't understand why
>they are even trying.  

Because they're depressingly successful. It's absolutely amazing how 
many people will create an account like "bob" and give it a password 
like "fish".

Mike Stone


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