Re: XP Screen Saver password uses Old password until logout or Newone is used.

From: Meritt James (meritt_jamesat_private)
Date: Tue Apr 30 2002 - 13:49:02 PDT

  • Next message: Andy Wood: "[Fwd: FW: XP Screen Saver password uses Old password until logout or New one is used.]"

    Did it in a couple of stores...  Worked there.  There is a real tendency
    not to keep demo stock up-to-date.
    
    Jim
    
    hellNbak wrote:
    > 
    > I haven't seen that one work since the NT3.51 days and early (pre SP3) NT
    > 4.0 installations.
    > 
    > On Tue, 30 Apr 2002, Meritt James wrote:
    > 
    > > Date: Tue, 30 Apr 2002 15:00:16 -0400
    > > From: Meritt James <meritt_jamesat_private>
    > > To: John Thornton <newsat_private>
    > > Cc: "Ghazi H. Al Wadi [NGHA-CTC]" <wadigat_private>,
    > >      vuln-devat_private
    > > Subject: Re: XP Screen Saver password uses Old password until logout or
    > >     New one  is used.
    > >
    > > A minor trick that works on SOME systems is that if you call up the
    > > process control popup via the keyboard, it appears on TOP of the
    > > screensaver.  You can then use it to kill the screensaver and then go to
    > > it.  This does NOT work on all implementations!
    > >
    > > Jim
    > >
    > > John Thornton wrote:
    > > >
    > > > There is no way this can be a feature. Take the following example. A
    > > > computer retail store such as Staples use password protected screen savers
    > > > to secure all of their computers. If they fired a disgruntle employee and
    > > > change all of the passwords he can still come back (Or have someone come
    > > > back for him) and do what ever he likes. Most retail stores do not shut the
    > > > display computers off at night because it just add more to the list of
    > > > things to do so, therefore the old password will always work.
    > > >
    > > > Not having access to a XP box I am curious to know if you change the
    > > > password three times would the two old passwords work?
    > > >
    > > > -John Thornton
    > > > Editor in Chief
    > > > Hacker's Digest Magazine
    > > > http://www.hackersdigest.com
    > > >
    > > > ----- Original Message -----
    > > > From: Ghazi H. Al Wadi [NGHA-CTC]
    > > > To: vuln-devat_private
    > > > Sent: Monday, April 29, 2002 11:32 PM
    > > > Subject: XP Screen Saver password uses Old password until logout or New one
    > > > is used.
    > > >
    > > > Hi,
    > > > Today I have as usual, changed my PC logon password (XP Home Edition). When
    > > > the screen saver started, I dismissed it and by force of habit, I typed the
    > > > old password. To my surprise I was able to unlock the screen saver using the
    > > > old password.
    > > > I  was able to do that several times, However, once I logout or use the new
    > > > password I am unable to use the old password and have to use the new one.
    > > >
    > > > The question is , Is this a feature. and from a security point of view
    > > > wouldn't that be a vulnerability. If not is it documented any where. And
    > > > last, was this issue addressed before.
    > > >
    > > > Kindest regards
    > > > Ghazi Al Wadi
    > >
    > >
    > 
    > --
    > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    > 
    > "I don't intend to offend, I offend with my intent"
    > 
    > hellNbakat_private
    > http://www.nmrc.org/~hellnbak
    > 
    > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    
    -- 
    James W. Meritt CISSP, CISA
    Booz | Allen | Hamilton
    phone: (410) 684-6566
    



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