From: Simon Wunderlich <sw@simonwunderlich.de>
To: b.a.t.m.a.n@lists.open-mesh.org
Cc: MK <mailing.m1@kkk-web.de>
Subject: Re: [B.A.T.M.A.N.] running alfred as unprivileged user
Date: Thu, 05 Feb 2015 13:29:23 +0100 [thread overview]
Message-ID: <1928822.H2LaTFtYz1@prime> (raw)
In-Reply-To: <matu4b$lak$1@ger.gmane.org>
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Hi Martin,
On Wednesday 04 February 2015 21:06:33 MK wrote:
> Hi list!
>
> Alfred daemon runs as user root in our current setup on the gateway.
>
> Regarding the faulty buffer size checks and improper use of strcpy in recent
> history of this software this seems to be a very bad idea.
that's a good point.
>
> What are the requirements for the user running alfred? Which elevated
> privileges does alfred really need? Is it possible to drop the privileges
> after setting up the interface bindings?
What spontaneously comes to my mind would be:
* network socket to send/receive UDP packets
* unix socket to talk to clients (but that may be changed by using a different
path)
* access to debugfs to get batman information
Patches are very welcome to implement dropping privileges.
Thanks,
Simon
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next prev parent reply other threads:[~2015-02-05 12:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-04 20:06 [B.A.T.M.A.N.] running alfred as unprivileged user MK
2015-02-05 12:29 ` Simon Wunderlich [this message]
2015-02-06 19:26 ` MK
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