Messages in this thread |  | | Subject | Re: Proposal: restrict link(2) | Date | Fri, 13 Dec 1996 00:01:36 +0100 (MET) | From | Thomas Koenig <> |
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The Deviant wrote:
>If you don't want your machine to be hacked, and you're willing to >sacrafice functionality, don't network it.
There is also the possibility of a malicious user on a non-networked system.
>> Some programs use mktemp(3). The filenames generated are predictable. >> Soft links are one way of exploiting this; hard links are another. > >Then mktemp(3) needs to be fixed...
Can't do this, without breaking existing programs.
>A concept which I am all for. But >again, this is userland, not kernel.
In that case, please provide a safe way that I can open a file in /tmp, without being root. Please include foolproof checks for symbolic and hard links. -- Thomas Koenig, Thomas.Koenig@ciw.uni-karlsruhe.de, ig25@dkauni2.bitnet. The joy of engineering is to find a straight line on a double logarithmic diagram.
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