Re: [linux-security] Things NOT to put in root's crontab

William McVey (wam@fedex.com)
Wed, 22 May 1996 14:20:41 -0500

Dan Cross wrote:
>I was under the impression that find(1) didn't follow symbolic links?
>Thus, one wouldn't ``find'' /etc/passwd if there was a link to /etc
>from somewhere in /tmp.

The exposure comes from a race condition between when find has
decended into a real directory (expected behavior) and when the
'rm' is forked (expected behavior).  If between these two tasks a
real directory is replaced with a symlink (unexepected behavior)
you are going to have problems.

 -- William