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Date:      Mon, 09 Dec 2013 22:11:08 -0800
From:      "Jason C. Wells" <jcw@speakeasy.net>
To:        fbsd_chat <freebsd-chat@freebsd.org>
Subject:   Rooted
Message-ID:  <52A6B07C.5050606@speakeasy.net>

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For the second time in my life I've been rooted. I found a 
barbut.bsd.core file and a talkng file in my /root directory. Barbut is 
some sort of binary that a webserver hack seems to download and run 
after a broken module provides access. That's bothersome enough.

But the very bothersome part is that I do not run any services on this 
box beyond what is needed to provide packet filtering and ftp-proxy. I 
have all accounts disabled. I only login after booting to single user 
mode on the console. I'm looking at the security advisories and I don't 
see one that seems to apply to my 8.2 system in my configuration.

So, short of an exploit in the network stack, pf, and ftp-proxy, what is 
a possible attack vector?

Regarding the security advisory lingo, does "unprivileged user" mean a 
remote attacker? Most (all?) of the advisories seem to involve local 
exploits or exploitable services.

Regards,
Jason C. Wells



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