Date: Fri, 8 Sep 2000 00:54:38 +0200 (CEST) From: Paul Herman <pherman@frenchfries.net> To: freebsd-hackers@FreeBSD.ORG Subject: the ol' init securelevel thread Message-ID: <Pine.BSF.4.21.0009080030210.276-100000@bagabeedaboo.security.at12.de>
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Hi, [ Bcc'ed to -current ] Perhaps it was a mistake :) but I took up someone else's cause and started a thread on -current which now probably belongs on -hackers. So: What are the dangers of having init lower the securelevel to 0 when the system goes into single user? Looking at the mailing list archive, this seems to be a re-occuring thread which always ended up open-ended with no real answer. Already established: * you _can't_ ptrace(2) init when securelevel > 0 * rev1.9 of kern_mib.c unfortunately states nothing concrete * both NetBSD and OpenBSD allow this behaviour * Easy, I'm not married to this idea :-) Just interested "academicaly" So, what dangers are there? -Paul. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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