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Date:      Thu, 11 Aug 2005 17:04:34 +0200
From:      Stijn Hoop <stijn@win.tue.nl>
To:        jimmy@inet-solutions.be
Cc:        freebsd-security@freebsd.org, Ken Hawkins <ken@rosewoodblues.com>
Subject:   Re: newbie with www user security problem
Message-ID:  <20050811150434.GD26471@pcwin002.win.tue.nl>
In-Reply-To: <1123772050.42fb669291ae3@webmail.boxke.be>
References:  <97525439-C809-4E69-B191-F29585A1A71B@rosewoodblues.com> <20050811134650.GC26471@pcwin002.win.tue.nl> <1123772050.42fb669291ae3@webmail.boxke.be>

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On Thu, Aug 11, 2005 at 04:54:10PM +0200, jimmy@inet-solutions.be wrote:
> If the box in question was local secure, you don't have to worry that muc=
h.

Correct of course, but seeing as the OP admitted to not knowing a lot about
the administration of this machine, I don't think local security was very
high.

> If it's a long time since you've updated your base, are sloppy with passw=
ords
> on the box in question, haven't updated your daemons/setuid packages in w=
eeks,
> then the box should be concidered a total loss.
>=20
> Just think in terms as "what are the possible things I could do if my UID=
 were
> 'www'"

There might be some less obvious things, especially if the base OS is
as far behind as the phpBB installation.

> I for example have webservers running in chroot, on a partition that is
> nosuid, and starred out password for the user 'www'. The thing you
> describing happens sometimes because users do not update there phpbb's
> either. I'm not affraid since the kiddo would have the same access than a
> customer, which I cannot trust either. If you don't know the box IS secur=
e,
> it isn't, there is a lot of work involved in keeping things like this
> "under controle".

Totally true, and good advice for setting up access for customers / etc.

--Stijn

--=20
Coughlin's law: never show surprise, never lose your cool.
		-- Cocktail

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