reeds@alice.UUCP (Jim Reeds) (07/29/85)
About the setuid root version of /bin/mv distributed with the 7300 UNIX PC. One can indeed become super user by typing the commands mv myversion /etc/passwd su Marty Shannon pointed out to me a few minutes ago, however, that this problem can be fixed by using chmod to allow only the owner to have write permission to /etc. He suggests chmod go-w /etc On my machine this seems to fix the problem. This is a pretty shrewd thing to do in any case, even if you are not worried about illicit super user-hood: you cut down the chance of accidental trashing of the vital /etc/init, /etc/getty, etc, etc, without which there would be no joy. Jim Reeds