Re: Another Mac OS X ScreenSaver Security Issue (after Security Update 2003-07-14)

From: Randy Kaelber (
Date: 08/01/03

  • Next message: Ryan Nelson: "Re: Novell GroupWise 6.5 Clear Text Vulnerability"
    Date: Thu, 31 Jul 2003 23:45:53 -0700
    To: Rizwan Jiwan <>

    On Thu, Jul 31, 2003 at 01:21:28PM -0400, Rizwan Jiwan wrote:
    > I wouldn't consider this a bug. It is like me writing a script that kills
    > any process named "ScreenSaverEngine". If I run it with my privileges it
    > should allow me to kill the process (assuming I own ScreenSaverEngine).
    > Escape Pod does what it is meant to. OS X does what it is meant to--that is
    > unless you are suggesting that the operating system not allow the user to
    > kill the screen saver process which is just stupid because I have had my
    > screen saver crash on me.

    I agree. It's no more a security hole than having Ctrl-Alt-Backspace
    enabled to kill one's X server when one starts X from the command line
    with "startx" rather than "exec startx". This is a matter of good
    security practice. Relying on a screensaver app to provide you with real
    security is probably not a good security practice. Sticking a Post-it
    note on one's monitor with root password written on it is certainly a bad
    security practice. However, neither of these practices are the fault of
    the software.

    Basing exceptions to rules on the name of the executable running sounds
    like a path towards madness, as well.

    Randy Kaelber

  • Next message: Ryan Nelson: "Re: Novell GroupWise 6.5 Clear Text Vulnerability"

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