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How are you defining network operators? Do you mean by the normal [in most
cases home] user? Apparently flash is able to allow UPnP access per PDP's
posting at www.gnucitizen.org. Apparently this is not a flaw and is a feature
(we've heard that before) of Flash and works as advertised. However, most of
the broadband routers have UPnP open by default, so all a malicious SWF file
has to do is start taking action via UPnP from your Linksys/NetGear/D-Link/etc.
home router. You might want to look into disabling this function as it
apparently doesn't support any form of authentication.
Steven
On Wed, 16 Jan 2008 12:10:40 -0600 (CST), Gadi Evron [EMAIL PROTECTED] wrote:
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Props to Jeff Chan who I saw it from.
Yes, I still believe these ISP distributed machines called broadband
routers
are a network operators issue. But not all may agree on that.
--
http://news.yahoo.com/s/pcworld/20080116/tc_pcworld/141399
Flash Attack Could Take Over Your Router
Robert McMillan, IDG News Service Tue Jan 15, 7:08 PM ET
Security researchers have released code showing how a pair of widely used
technologies could be misused to take control of a victim's Web browsing
experience.
The code, published over the weekend by researchers Adrian Pastor and
Petko
Petkov, exploits features in two technologies: The Universal Plug and Play
(UPnP) protocol, which is used by many operating systems to make it easier
for
them to work with devices on a network; and Adobe Systems' Flash
multimedia
software.
By tricking a victim into viewing a malicious Flash file, an attacker
could use
UPnP to change the primary DNS (Domain Name System) server used by the
router
to find other computers on the Internet. This would give the attacker a
virtually undetectable way to redirect the victim to fake Web sites. For
example, a victim with a compromised router could be taken to the
attacker's
Web server, even if he typed Citibank.com directly into the Web browser
navigation bar.
The most malicious of all malicious things is to change the primary DNS
server, the researchers wrote. That will effectively turn the router and
the
network it controls into a zombie which the attacker can take advantage of
whenever they feel like it.
Because so many routers support UPnP, the researchers believe that ninety
nine
percent of home routers are vulnerable to this attack.
In fact, many other types of UPnP devices, such as printers, digital
entertainment systems and cameras are also potentially at risk, they added
in a
Frequently Asked Questions Web page explaining their research.
[...]
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