Re: Windows 2000 password policy bypass possibility

From: Anthony DeRobertis (asdat_private)
Date: Tue Mar 12 2002 - 04:51:46 PST

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    On Friday, March 8, 2002, at 06:33 PM, Bradley, Tony wrote:
    
    > To combat this you also need to set a minimum password age in 
    > your policy.
    > If you set the minimum password age to 1 month they will not be able to
    > reset their password for at least 1 month each time and then 
    > you guarantee
    > that it will be 18 months until they can re-use the old password again.
    
    Of course, if a user happens to find out or suspect his password 
    is compromised, then he can't change it, either.
    
    Cycling through 18 passwords take a fair amount of effort. Even 
    more if you set the minimum to something like ten minutes. But 
    at least ten minutes probably doesn't get in the way of users 
    who need to change their password because they lost the slip of 
    paper they wrote it down on.
    
    Also, remember, the more often you make people change their 
    passwords, the more likely they are to start writing them down. 
    And the more valuable the stored password history is likely to 
    become.
    



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