Timothy R. Chavez wrote:
On Fri, 2006-07-07 at 10:58 -0400, Steve wrote:
I have found that I can modify files that are being watched and audit
not catch it (ie. no events are dispatched). When monitoring a file for
all system calls, I can:
echo "" > /file/to/watch
or
cat some_file > /file/to/watch
without generating audit events. I assume this has to do with how the
kernel handles re-direction. Is it possible to catch these modifications?
Thanks,
Steve
What are your rules? You should catch these on open()
of /file/to/watch, right?
-tim
I am seeing this as well with the .42 kernel and audit-1.2.4-1. Not sure
when this might have broken, but its broke now.
It seems if you set a watch on /file/to (to use your example above),
then you are getting the opens that bash does, although the PATH record
shows the item as "/file/to/watch".
So watching the parent directory will audit redirect shell magic, but
watching the target of that redirection will not audit that same magic.
Mike
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