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- Xref: sparky comp.security.misc:2312 alt.comp.acad-freedom.talk:3789
- Path: sparky!uunet!mcsun!Germany.EU.net!ira.uka.de!uka!s_titz
- From: s_titz@ira.uka.de (Olaf Titz)
- Newsgroups: comp.security.misc,alt.comp.acad-freedom.talk
- Subject: Re: Security vs usefulness (was Re: reasons
- Date: 17 Dec 1992 11:25:56 GMT
- Organization: Fachschaft math/inf, Uni Karlsruhe, FRG
- Lines: 85
- Message-ID: <1gpo44INNe27@iraul1.ira.uka.de>
- References: <1992Dec14.211255.15839@lambda.msfc.nasa.gov> <1gkpsmINNn05@iraul1.ira.uka.de> <1992Dec16.173049.19678@oracle.us.oracle.com>
- NNTP-Posting-Host: irau31.ira.uka.de
-
- In article <1992Dec16.173049.19678@oracle.us.oracle.com> mfriedma@uucp
- (Michael Friedman) writes:
-
- >>I really don't know about installations where the security people are
- >>officers...
- >
- >Personally, I don't think that you know about any installation where
- >there is any need for security, period.
-
- You surely may be right. There is no need for this kind of "security"
- they're talking about here, *here*. I'll state more precisely.
-
- >>You run into this as soon as you start thinking, "the less I allow to
- >>the users the less damage can/will they do", which is wrong, imho.
- >>But if the changes involve (e.g.) hiding an
- >>entire subnetwork behind a firewall, this *does* affect the users. And
- >...
- >
- >Olaf, do you really believe that an academic site should put computers
- >that students can access on the same network as the ones containing
- >grades, financial data, and medical records without putting in major
- >firewalls between the networks?
-
- No, but:
-
- 1. "Students can access": You risk of getting me angry if you put up
- the implication "student => security risk". I really do not want to
- fire up a flame war, and I well recognize that there are some people
- who are students and who are a security risk, especially when it comes
- to networks (don't tell me, we had an incident like this just
- yesterday :-( ) But the kind of thinking, "we put students on this
- machine, therefore we have implemented stiff security, tell me if
- something doesn't work anymore"(*) - the kind of labeling ANY student
- a potential network disrupter and malicious cracker *in the first
- place* - this discriminatory thinking against students IN GENERAL, is
- a major problem, imho. It is "guilty-until-proven-innocent" thinking.
-
- (*) This is an actual case. Exactly this message has been issued to
- all NON-student users of the system I'm on now, about a year ago. And
- they still wonder why students who accidentally heard of this message
- feel pissed off.
-
- 2. Firewalls where firewalls are due, but not between two neighbouring
- departments at the same university (also an actual case). (Don't get
- me wrong - not a medical department; rather two branches of the
- Computer Science Dept.) Sites that *have* sensitive data are to
- protect *themselves*, and if you boil it down to firewalls, then they
- should firewall themselves. Turned around: Does a machine whose only
- work is to maintain a database about medical records for exclusive use
- in that hospital have to be hooked on a world-wide network which is
- known for its lack of inherent security, which is known for many
- people being around who can be malicious (NOT ALL OF THEM BEING
- STUDENTS) and for a general open-ness of services which implies that
- there are many services most people don't know of? I doubt. And I've
- never said that all machines are to be treated equal regardless of the
- data they work on. But just a little care has to be applied on either
- side.
-
- 3. Disrupting users: yet another actual case. You wonder why that
- program didn't compile and discover that <curses.h>, like almost any
- other file on that machine, is mode 640 and you're not in the right
- group, because all "security" on this Unix system is based on groups
- (not a bad idea at all, but it can be implemented more or less
- reasonably.) Security????
- This is the kind of cases I thought of with my statement that a
- certain misconception of "security", not security in general, serves
- no good, especially in places that have no inherent need for enhanced
- security.
-
- I'm very concerned about security in general, e.g. for privacy
- matters. Something is absolutely necessary in this field. But for
- security concerns to be accepted by the users, the implementation has
- to be done carefully so that legitimate use is NOT disrupted, and this
- makes me worry insofar as I from my (admittedly limited) experience
- know of more cases where this went wrong than where it went right.
- Unfortunately.
-
- Olaf
-
-
- --
- | Olaf Titz - comp.sc.student | o | uknf@dkauni2.bitnet | old address |
- | univ. of karlsruhe - germany | _>\ _ | s_titz@ira.uka.de | is still |
- | +49-721-60439 | (_)<(_) | praetorius@irc | valid |
- "My heart is human - my blood is boiling - my brain IBM" - Mr. Roboto
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