Date: Tue, 07 Feb 2012 13:11:44 +0100 From: Damien Fleuriot <ml@my.gd> To: freebsd-questions@freebsd.org Subject: Re: on hammer's, security, and centrifuges... Message-ID: <4F311500.6070609@my.gd> In-Reply-To: <CAE7N2ke-eEg3QqD3OfD_AJ6Yx78wwhOiApwVYsDQXhxU14JgAQ@mail.gmail.com> References: <CAE7N2ke-eEg3QqD3OfD_AJ6Yx78wwhOiApwVYsDQXhxU14JgAQ@mail.gmail.com>
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On 2/7/12 1:03 PM, Henry Olyer wrote: > So I was coding along... > > On my laptop, on session #1, and I get a notice that someone did an su. > Except I'm the only user and I didn't have an ethernet cord connected. > (And no, it wasn't me...) > > I just built this laptop a few days ago. Fresh. I did have to get on the > net to download/make/install a few critical packages. I do development. > And research. > > My guess, not one shred of evidence, is that someone got in while I was > re-building packages. Some, (for example Maxima,) take hours. And because > of problems with gnuplot and pdflib, won't build as packages without > re-compilation. > And how would they have done that: - weak root password or something ? - did you allow rootlogin at all through SSH ? I work with dozens of FreeBSD boxes at work, all of which are under heavy load and present juicy targets for attackers. We've not had a single breach in security since I started. You're looking for means of increasing security, it seems to me, once an attacker already has the root. I would suggest preventing said attacker from obtaining the root in the first place. Perhaps one of the packages you downloaded was backdoored ?
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