Vulnerability Development mailing list archives

Re: Core Dump as an Intrusion Event


From: Pascal Bouchareine <pb () GROLIER FR>
Date: Thu, 5 Oct 2000 17:31:34 +0200

So true.

Many crontabs used to do a find / -name core -exec rm -f {} \;

Services core dumps would ideally be analyzed by a system administrator.
If not to notice (a bit late ?) an intrusion attempt, to fix bugs in his
applications.

Core dump notification sounds generally good to me. Even a false-true
is interesting to look at :)

An annoying point is, *many* usual daemons have complex memory leaks,
and often core dump after a long period of running time. This is often
very hard to analyze and fix.

On Thu, Oct 05, 2000 at 07:00:15AM -0700, Crispin Cowan wrote:
Anyone have practical comments on this hypothesis?  In practice, how
often do services dump core for non-security reasons?  If services dump
core for non-security reasons even just a little, then the
false-positive rate of intrusion detection from this clue gets out of
control.

Caveat:  I know that this is a bad heuristic for Windows machines :-)

--
Kalou.
                             ldiq    t0, 0xbeeffedadeadbabe


Current thread: