Bugtraq mailing list archives

Re: little whole on Suns concerning /dev/kbd

From: shipley () dis org (Pete Shipley)
Date: Thu, 7 Dec 1995 22:57:05 -0800

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

Current thread:

Cracked: WINDOWS.PWL Michael S. Fischer (Dec 05)
- Another tmpfs bug in SunOS 4 Arfst Ludwig (Dec 02)
  - Re: Another tmpfs bug in SunOS 4 Pete Shipley (Dec 07)
- little whole on Suns concerning /dev/kbd Arfst Ludwig (Dec 02)
  - Re: little whole on Suns concerning /dev/kbd Pete Shipley (Dec 07)
- Re: Cracked: WINDOWS.PWL [most services accessed by any version Rich Graves (Dec 05)
- fork() Alex Leipold (Dec 10)
  - Re: fork() Scott Barman (Dec 11)
    - Re: fork() Tom Jones (Dec 12)
    - SECURITY: Announcing Splitvt 1.6.3 Sam Lantinga (Dec 13)
    - Re: SECURITY: Announcing Splitvt 1.6.3 Alex Leipold (Dec 14)
  - Re: fork() JaDe (Dec 11)
  - Re: fork() Nathan Lawson (Dec 11)