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Message-ID: <20150401074116.GN23636@example.net>
Date: Wed, 1 Apr 2015 09:41:16 +0200
From: u-wsnj@...ey.se
To: musl@...ts.openwall.com
Cc: busybox <busybox@...ybox.net>
Subject: Re: Re: Busybox on musl is affected by CVE-2015-1817
On Tue, Mar 31, 2015 at 07:48:10PM -0400, Rich Felker wrote:
> > > 2. Reconsider the rejection of the patch to add SOCK_DGRAM support for
> > > ping, which allows it to run without root.
> >
> > This seems to lead to a significantly larger code.
>
> I don't recall the exact amount, but given that busybox's suid
> framework is not taking any precautions to mitigate the risks of suid
> (not to mention that eliminating all suids is a goal of some
> security-conscious systems integrators)
Yes it is here (the goal).
Suid is a very old and nowadays quite redundant tool, mostly holding
ground due to its "simplicity" (say, compared to talking to a daemon)
and to the tradition. Seen from a different perspective, it is from the
pre-network epoch ("the computer is the universe") and enforces among
others hardcoded paths - which is a PITA for reusable and globally
placed software.
> I think it would be worth it
> even if it doubled the size of the ping utility (which it does not).
+1
Rune
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