From owner-freebsd-hackers Mon Feb 24 16:52:19 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id QAA05737 for hackers-outgoing; Mon, 24 Feb 1997 16:52:19 -0800 (PST) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id QAA05726 for ; Mon, 24 Feb 1997 16:52:08 -0800 (PST) Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id BAA07861 for hackers@freebsd.org; Tue, 25 Feb 1997 01:51:36 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.8.5/8.8.5) id BAA02182; Tue, 25 Feb 1997 01:24:49 +0100 (MET) Message-ID: Date: Tue, 25 Feb 1997 01:24:48 +0100 From: j@uriah.heep.sax.de (J Wunsch) To: hackers@freebsd.org Subject: Re: disallow setuid root shells? References: <3311E1FD.167EB0E7@whistle.com> <9702242229.AA03727@biohazard.csc.ncsu.edu> X-Mailer: Mutt 0.55-PL10 Mime-Version: 1.0 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <9702242229.AA03727@biohazard.csc.ncsu.edu>; from Nate Johnson on Feb 24, 1997 17:29:54 -0500 Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Nate Johnson wrote: > Except the case where the hacker truly knows what they're doing, in which > case, the security audit will be worthless. root can modify any files he > wants, including the database used to compare suid files against. =( chflags schg sysctl -q kern.securelevel=1 -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)