Xref: utzoo comp.unix.internals:1594 alt.security:1822
Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!rbj
From: rbj@uunet.UU.NET (Root Boy Jim)
Newsgroups: comp.unix.internals,alt.security
Subject: Re: becoming root via NFS
Message-ID: <115083@uunet.UU.NET>
Date: 21 Dec 90 20:48:40 GMT
References: <111544@convex.convex.com> <114827@uunet.UU.NET> <1990Dec19.180541.7693@convex.com>
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In article <1990Dec19.180541.7693@convex.com> tchrist@convex.COM (Tom Christiansen) writes:
? From the keyboard of rbj@uunet.UU.NET (Root Boy Jim):
? :In article <111544@convex.convex.com> tchrist@convex.COM (Tom Christiansen) writes:
? :? Do a mknod 
? :? giving it the major,minor numbers of /dev/mem on the server,
? :? not the workstation.
? :
? :Um, only root can do a mknod, `nobody' can't.
? 
? 
? Says who?  This isn't so.  I'm on my workstation.  I'm the superuser.
? I've got the trusting server's filesystem mounted on my system.
? (It's a diskless 350, so I have to have something.)   I can certainly
? do the mknod.  Watch (I'm root@cthulhu, my workstation):

OK, so you did. But you shouldn't have been able to, and will not
after you start running SunOS 4.1. I know people who know.
-- 

	Root Boy Jim Cottrell <rbj@uunet.uu.net>
	Close the gap of the dark year in between