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From: InfoSec News (alertsinfosecnews.org)
Date: Fri Apr 17 2009 - 04:19:46 CDT
By Dan Goodin in San Francisco
16th April 2009
Network backbone technologies used to route traffic over large corporate
networks are vulnerable to large-scale hijacking attacks, according to
two researchers who released freely available software on Thursday to
prove their point.
The tools, demonstrated at the Black Hat security conference in
Amsterdam, are intended to show that attacks once believed to be only
theoretical are very much practical, said Enno Rey, one of the creators
of the software. He developed the tools along with researcher Daniel
"We think the trust models of some technologies that are widely deployed
in some networks are outdated," Rey told The Register. "This is to make
people aware that the technologies they use in their daily life are not
as secure as they might seem.
Some of the new tools attack a network data-forwarding technology known
as MPLS, or multiprotocol label switching. Carriers such as Verizon,
AT&T and Sprint use it to segregate one corporate customer's traffic
from another's as it's shuttled from one geographic region to another.
The tools make it trivial for anyone with access to the carrier's
network to redirect that traffic or alter data on it.
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