Date: Fri, 07 Jun 1996 14:05:23 -0700 From: Paul Traina <pst@shockwave.com> To: Nate Williams <nate@sri.MT.net> Cc: Barnacle Wes <softweyr@xmission.com>, security@freebsd.org Subject: Re: FreeBSD's /var/mail permissions Message-ID: <199606072105.OAA00533@precipice.shockwave.com> In-Reply-To: Your message of "Fri, 07 Jun 1996 13:48:21 MDT." <199606071948.NAA00227@rocky.sri.MT.net>
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Mail locking, to be effective, must be soley performed through the use of the flock() call on the mail file itself. Locking schemes relying on other mechanisms are not effective. Sorry. From: Nate Williams <nate@sri.MT.net> Subject: Re: FreeBSD's /var/mail permissions > Correction: Most MUAs do not need write access to this directory, > so they are not SUID root. They just work on the files. Corretion: Actually, *most* MUA's that I'm aware of need write access to the directory if they plan on doing any sort of mailbox locking, which most decent MUA do. Nate
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