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Date:      Fri, 8 Sep 2000 17:24:52 +0200 (CEST)
From:      Paul Herman <pherman@frenchfries.net>
To:        Vivek Khera <khera@kciLink.com>
Cc:        freebsd-current@FreeBSD.ORG
Subject:   Re: call for testers: init securelevel patch
Message-ID:  <Pine.BSF.4.21.0009081717590.315-100000@bagabeedaboo.security.at12.de>
In-Reply-To: <14776.61431.463710.288320@onceler.kciLink.com>

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On Fri, 8 Sep 2000, Vivek Khera wrote:

> >>>>> "BE" == Bruce Evans <bde@zeta.org.au> writes:
> 
> BE> revision 1.9
> BE> date: 1997/06/25 07:31:47;  author: joerg;  state: Exp;  lines: +2 -2
> BE> Don't ever allow lowering the securelevel at all.  Allowing it does
> BE> nothing good except of opening a can of (potential or real) security
> BE> holes.  People maintaining a machine with higher security requirements
> BE> need to be on the console anyway, so there's no point in not forcing
> BE> them to reboot before starting maintenance.
> 
> Perhaps one of the secure level restrictions should be that you cannot
> attach to pid 1 via the debugger.

You can't.

Ever since Apr 1997 you couldn't attach gdb to init.

-Paul.



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