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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Jason Hellenthal <jhell@DataIX.net>
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Date: Tue, 10 May 2011 12:28:28 +0200
In-Reply-To: <20110509144947.GB77054@DataIX.net> (Jason Hellenthal's message
	of "Mon, 9 May 2011 10:49:47 -0400")
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Cc: Jamie Landeg Jones <jamie@bishopston.net>, freebsd-security@freebsd.org,
	feld@feld.me, Edho P Arief <edhoprima@gmail.com>, utisoft@gmail.com
Subject: Re: Rooting FreeBSD , Privilege Escalation using Jails (P??????tur)
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Jason Hellenthal <jhell@DataIX.net> writes:
> Do you know if there is a way that chmod on / from within the jail could=
=20
> be prevented easily without breaking something ? Maybe not failing but=20
> falling though and return 0 for any operation with the sole argument of /.

Not without adding explicit checks in the kernel.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no