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To: Matthew Dillon <dillon@apollo.backplane.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Thu, 24 Jul 2008 09:39:36 MST."
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Date: Thu, 24 Jul 2008 17:41:13 +0000
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Cc: Kostik Belousov <kostikbel@gmail.com>,
	Liste FreeBSD-security <freebsd-security@freebsd.org>,
	Robert Watson <rwatson@freebsd.org>, Lyndon Nerenberg <lyndon@orthanc.ca>
Subject: Re: A new kind of security needed 
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In message <200807241639.m6OGda4b004216@apollo.backplane.com>, Matthew Dillon w
rites:
>    Doesn't OpenBSD have a syscall filtering mechanic where one can restrict
>    the file paths the program is allowed to access?

Yes they do.

Really smart programs modify the strings after the check and get
to access the files anyway.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.