Date: Fri, 21 Feb 2003 07:50:56 -0600 From: "Jacques A. Vidrine" <nectar@FreeBSD.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: ru@FreeBSD.org, cjc@FreeBSD.org, src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/netinet in_pcb.c Message-ID: <20030221135056.GA32007@madman.celabo.org> In-Reply-To: <20030221.062059.34122968.imp@bsdimp.com> References: <200302210528.h1L5SS0H092948@repoman.freebsd.org> <20030221131205.GE30966@sunbay.com> <20030221.062059.34122968.imp@bsdimp.com>
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On Fri, Feb 21, 2003 at 06:20:59AM -0700, M. Warner Losh wrote: > One implication of this is that if you have a server running on a > used-to-be priviledged port and now run it on a no-privs port your > machine has more potential for compromise. If an attacker can make > that server die, and has an accaount on your machine, that attacker > can replace the daemon with his own by winning the restart race. With > priviledged ports, root was the only one that mattered. Yes, this is why this feature _must_ remain `off' by default. Cheers, -- Jacques A. Vidrine <nectar@celabo.org> http://www.celabo.org/ NTT/Verio SME . FreeBSD UNIX . Heimdal Kerberos jvidrine@verio.net . nectar@FreeBSD.org . nectar@kth.se To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-src" in the body of the message
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