On Thu, 7 Sep 2000, Zach N. Heilig wrote:

> On Thu, Sep 07, 2000 at 06:33:20PM +0200, Paul Herman wrote:
> > Here is a patch which will allow init(8) (or rather, any process with
> > PID 1) to lower the securelevel to 0 when going into single-user
> > maintenence mode.  This has no effect if securelevel is -1.
> This was the behavior a while back.  It was removed on purpose.  (because
> an attacker could attach to PID 1 with a debugger and cause it to lower
> secure level without going to single user mode.)

You can't trace PID 1 when securelevel > 0.

So I think it's still safe...


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