[2632] in Athena Bugs
stale mappings -- nfs security hole
daemon@ATHENA.MIT.EDU (Joe Harrington)
Mon Jul 24 19:57:59 1989
Date: Mon, 24 Jul 89 19:57:15 EDT
From: Joe Harrington <jh@ATHENA.MIT.EDU>
To: bugs@ATHENA.MIT.EDU
Cc: jh@ATHENA.MIT.EDU
Reply-To: jh@ATHENA.MIT.EDU
My workstation is rebooted by J.R. Cracker while my back is turned. I
turn back, see it has crashed, swear (that's important), and go login
to another machine. Meanwhile, Mr. Cracker boots it single-user,
removes the nfsid -p from the rc file, boots up, and munches my files
for lunch. Unlikely, but there are several more reasonable scenarios
involving illicit use of stale mappings -- a building loses power, a
workstation dies while I'm on it and takes some time to be replaced,
etc. I'd like to be able to say to my server, "flush all my mappings
from anywhere."
--jh--
