Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shadooby!ginosko!uunet!mcsun!ukc!mucs!liv-cs!powell
From: powell@mva.cs.liv.ac.uk
Newsgroups: comp.os.minix
Subject: Re: Corrupting DOS partition
Message-ID: <2450@mva.cs.liv.ac.uk>
Date: 11 Oct 89 11:57:30 GMT
References: <5033@ogccse.ogc.edu> <2255@ditsyda.oz>
Organization: Computer Science CSMVAX, Liverpool University
Lines: 26

In article <2255@ditsyda.oz>, evans@ditsyda.oz (Bruce Evans) writes:
> In article <5033@ogccse.ogc.edu> lyle@ogccse.UUCP (Lyle Cool) writes:
>>	build bootblok kernel mm fs init fsck /dev/hd0   instead of
>>...
>>It raises this issue: should Minix allow a fumble-fingered programmer
>>to corrupt another partition on the disk?
> 
> The system can easily protect against this if the file permissions are
> set properly. I have all hard disk readable by everyone but writable
                                     ^^^^^^^^^^^^^^^^^^^^

   Surely, not every user should be able to read the hard disks. This 
rather makes redundant any attempt to stop a user from looking at your file
space. They can just do a "od /dev/hd5" (or whatever) to look at the entire
contents of the file system!


^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"she wants me t' say what she wants t' say    - B. Dylan (Some other kinds
 she wants me t' say what she can understand"             of songs... #3)

Mark Powell

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