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Re: little whole on Suns concerning /dev/kbd

daemon@ATHENA.MIT.EDU (Pete Shipley)
Mon Dec 11 05:20:02 1995

Date:         Thu, 7 Dec 1995 22:57:05 -0800
Reply-To: Bugtraq List <BUGTRAQ@CRIMELAB.COM>
From: Pete Shipley <shipley@dis.org>
X-To:         Bugtraq List <BUGTRAQ@CRIMELAB.COM>
To: Multiple recipients of list BUGTRAQ <BUGTRAQ@CRIMELAB.COM>
In-Reply-To:  Your message of Sat, 02 Dec 1995 23:56:03 +0100.
              <m0tM0qh-002EOtC@luxor.in-berlin.de>

>On a SUN with SunOS 4.1.* or Solaris 2.* any user loged on the console can
>remap the abort key sequence (the key sequence to enter the boot monitor).
>Impact: Any arbitary key sequence can enter the boot monitor and halt
>the machine.


>
>Is there a fix possible?

yes, use the file /etc/fbtab

to have at least the fillowing:


/dev/console    0622    /dev/audio
/dev/console    0600    /dev/audioctl
/dev/console    0600    /dev/kbd:/dev/mouse

plus enteries for you graphics framebuffer.


btw: back in my sysad day I used to map the KIOCABORT
to null this preventing the system from a keyboard reboot
(I has a problem of users rebooting there systems
and f*cking up the disks then calling me to fix it)


                -Pete

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