Incidents
DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 22 2008 12:55AM
ponchovaldes gmail com (4 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 24 2008 11:55AM
david bizeul (david bizeul gmail com) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 28 2008 06:58PM
Jon R. Kibler (Jon Kibler aset com)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 24 2008 04:05AM
dxp (dxp2532 gmail com) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 25 2008 12:31PM
Ronald van der Westen (rvdwesten gmail com) (2 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our firstcompetition Jan 25 2008 06:00PM
Cedric Blancher (blancher cartel-securite fr) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 28 2008 04:59PM
Jeff Plewes (plewes gmail com) (4 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 29 2008 12:06AM
Eduardo Tongson (propolice gmail com)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our firstcompetition Jan 28 2008 10:46PM
Graeme Fowler (G E Fowler lboro ac uk) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 28 2008 11:57PM
Eduardo Tongson (propolice gmail com) (2 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 29 2008 06:59PM
Valdis Kletnieks vt edu (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 30 2008 12:22AM
Eduardo Tongson (propolice gmail com) (2 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 30 2008 06:15PM
Jason Stelzer (jason stelzer gmail com) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 31 2008 02:49AM
Eduardo Tongson (propolice gmail com) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 31 2008 04:54PM
Jamie Riden (jamie riden gmail com) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Feb 01 2008 12:07AM
Eduardo Tongson (propolice gmail com)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our firstcompetition Jan 30 2008 05:50PM
Graeme Fowler (G E Fowler lboro ac uk)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our firstcompetition Jan 29 2008 08:39AM
Graeme Fowler (G E Fowler lboro ac uk) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 29 2008 04:25PM
Paul Schmehl (pauls utdallas edu)
--On Tuesday, January 29, 2008 08:39:04 +0000 Graeme Fowler
<G.E.Fowler (at) lboro.ac (dot) uk [email concealed]> wrote:
>
> Once an unknown remote user is on your system, the glib comment I made
> was "all bets are off - they're not root yet". I don't know what setuid
> root scripts exist on the system in question, nor what other mods may
> have been made which expose privilege escalation issues. I'm pointing
> out what I believe could be a (the) likely attack vector, from
> experience.
>
> It could equally well be something else, but before we all run around
> shouting that "the sky is falling" we should probably examine what we
> do, or can, know first.
>

Just to buttress what Graeme is saying, the problem is two-fold. You not only
have an unwanted visitor in your system, but you also have an unwanted visitor
on your *network*. So you have two risks - the visitor can find a local
privilege escalation that works and the visitor can discover all your assets
and find weaknesses in any of them to exploit.

It's been my experience that local privilege escalation is often thought of as
less dangerous than remote privilege escalation. The only difference between
the two is from where the attacker has to start. Once he's in, as Graeme says,
all bets are off. It's purely a matter of time before something gets
exploited, even if it's only password sniffing that leads to root. All it
takes is for one person to type their password on the cli (e.g. mysql -u root
-p foo), and the password is sitting in plain text in the logfiles.

--
Paul Schmehl (pauls (at) utdallas (dot) edu [email concealed])
Senior Information Security Analyst
The University of Texas at Dallas
http://www.utdallas.edu/ir/security/

[ reply ]
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 28 2008 09:15PM
Gary Baribault (gary baribault net)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 28 2008 07:24PM
Paul Schmehl (pauls utdallas edu) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 28 2008 08:17PM
Jeff Plewes (plewes gmail com)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 23 2008 03:04AM
Jeff Plewes (plewes gmail com) (4 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 24 2008 02:53AM
Eduardo Tongson (propolice gmail com)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 23 2008 10:11PM
Florian Weimer (fw deneb enyo de) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 24 2008 02:46AM
Jeff Plewes (plewes gmail com) (1 replies)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 24 2008 08:03AM
Mark Gottschalk (mgotts 2roads com)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 23 2008 06:28PM
Gary Baribault (gary baribault net)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 23 2008 05:15PM
Stephen John Smoogen (smooge gmail com)
Re: DNS CACHE POISONING? - Our Portal is redirecting to our first competition Jan 22 2008 05:03PM
Stephen John Smoogen (smooge gmail com)


 

Privacy Statement
Copyright 2010, SecurityFocus