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Re: Bug#278283: insecure temporary file usage in gettextize and autopoin
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From: |
Thomas Dickey |
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Subject: |
Re: Bug#278283: insecure temporary file usage in gettextize and autopoint (fwd) |
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Date: |
Tue, 26 Oct 2004 14:32:32 -0400 (EDT) |
On Tue, 26 Oct 2004, Bruno Haible wrote:
> Thomas Dickey wrote:
> > > is to make filename sit in a temporary directory under /tmp, not directly
> > > in /tmp ?
> >
> > For the truly paranoid, even that is not sufficient.
>
> Why? The creation of the temp directory cannot erase a file, and once the
> directory is created with mode 077, an attacker cannot place a symlink into
> it. What kind of attack is still possible with a temp directory with mode 077?
> Can you please explain?
On some systems (none recent), I recall that you could still rename the
directory (and put a link to your favorite location).
--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net