Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!cmcl2!nrl-cmf!ames!sdcsvax!brian From: brian@sdcsvax.UCSD.EDU (Brian Kantor) Newsgroups: comp.sys.att Subject: Re: slide - a command to make you root Message-ID: <4309@sdcsvax.UCSD.EDU> Date: Tue, 17-Nov-87 15:57:35 EST Article-I.D.: sdcsvax.4309 Posted: Tue Nov 17 15:57:35 1987 Date-Received: Thu, 19-Nov-87 23:54:55 EST References: <223@althea.UUCP> Reply-To: brian@sdcsvax.UCSD.EDU (Brian Kantor) Organization: UCSD wombat breeding society Lines: 20 Keywords: handy, time-saving, gaping security hole In article <223@althea.UUCP> rjd@althea.UUCP (Rob Diamond) writes: >This is slide, a little program I find very handy on the 3b1. It allows >selected users to become root without prompting for a password. You can >run slide with no arguments, in which case it invokes a shell ($SHELL) with >root permissions, or you can run it with arguments, in which case it runs >the arguments as a command line with root permissions. Sigh. And it's exactly the same as giving root a list of passwords instead of just one. See, if any of the villains out there manages to get the password of any of the users who can execute this program to become root, then they too can become root. And it's a trivial matter then to edit the password file, delete or change the root password, type rm -rf *, or any of those other wonderful things that villains do. From one point of view, having just one user who can run this decreases the security of your system by half. Perhaps it's worth it to you somehow. Brian Kantor UCSD Office of Academic Computing Academic Network Operations Group UCSD B-028, La Jolla, CA 92093 USA