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- Path: sparky!uunet!sun-barr!ames!agate!anableps.berkeley.edu!rogue
- From: rogue@anableps.berkeley.edu (Brett Glass)
- Newsgroups: comp.os.coherent
- Subject: Installation Oddities
- Date: 30 Jul 1992 08:22:25 GMT
- Organization: University of California, Berkeley
- Lines: 37
- Distribution: world
- Message-ID: <1588s1INN4ks@agate.berkeley.edu>
- NNTP-Posting-Host: anableps.berkeley.edu
- Originator: rogue@anableps.berkeley.edu
-
- I just installed Coherent 3.2.1 (you may remember that I tried to
- do this some time ago, but was thwarted because the hard disk was
- too large). The installation went smoothly this time, except for
- one problem: when the system encountered a minor, soft error when
- reading from one of the distribution floppies, it immediately
- aborted the entire installation and then asked for all the floppies
- again. There was no way to short-circuit this process, or to tell
- the system that I'd already copied all the other disks.
-
- Finally, I finished installing the system and began to explore. After
- sending mail to myself, I found that -- for some reason -- the mailer
- didn't move the mail to a personal "mbox" file when I typed ^D or "q".
- No explanation at all in the manual about why.
-
- But the big shocker, from my point of view, was the lack of default
- security -- coupled with an undocumented "back door" that could only
- be considered an open invitation for system crackers. After creating a
- few users, I discovered that all of their mail files were publicly
- readable. What's more, the password file -- as created during the
- installation process -- had an undocumented account called "xmail"
- (name: "Secret Mail") with NO PASSWORD! This means that if a new
- Coherent user were to put his system online and did not notice these
- "holes," ANYONE could log on as "xmail" and read all of that user's
- e-mail (as well as any other files that were publicly readable).
- I wonder how many Coherent systems still have this back door open now?
-
- <BG>
-
-
-
-
-
- --
- "Beware when the great God lets loose a thinker on this planet.
- Then all things are at risk. It is as when a conflagration has
- broken out in a great city, and no man knows what is safe, or
- where it will end." -- Ralph Waldo Emerson
-