Date: Thu, 30 Jul 1998 11:27:58 +0200 (CEST)
From: Jan-Philip Velders <[email protected]>
To: [email protected]Subject: [linux-security] who (fwd)
Hi *,
fwd from bugtraq
Greetings,
Jan-Philip Velders
<[email protected]>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
| Nederlandse Linux GebruikersGroep : http://www.nllgg.nl |
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
---------- Forwarded message ----------
Date: Tue, 28 Jul 1998 20:27:21 +0200
From: Paul Boehm <[email protected]>
To: [email protected]Subject: who
Hi,
the 'who' program is on some systems in a privileged group
which is allowed to read utmp. On redhat linux 5.1 you can
easily crash who by many different ways (e.g. try who /bin/bash)
on freebsd you can use it to view parts of the content of files that
privileged group may read(try who /privileged/group/file).
this is no big deal with security, but gaining a more privileged group
sometimes may be the key to root compromise.
bye,
pb
--
[ Paul S. Boehm | [email protected] | http://paul.boehm.org/ | infected@irc ]
Money is what gives a programmer his resources. It's an exchange system created
by human beings. It surrounds us. Works for us, binds the economy together.
--
----------------------------------------------------------------------
Please refer to the information about this list as well as general
information about Linux security at http://www.aoy.com/Linux/Security.
----------------------------------------------------------------------
To unsubscribe:
mail -s unsubscribe [email protected] < /dev/null
