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Forums » Major TCP Vulnerability Unveiled » Internet Shutdown
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TrainBuff
The New Haven Railroad
Premium
join:2003-05-01
Buffalo, NY
clubs:
Internet Shutdown

A hacker who found the flaw could effectively shutdown or cause severe interruptions to the Internet. Scary!

B777300

join:2002-01-02
Indeed...

laz45

join:2002-08-01
Orlando, FL
clubs:
How can this be done, i wanna do it

tdkyo

join:2002-12-07
Rochester, NY
reply to TrainBuff
Lets see if your router manufacturers can come up with a patch soon....


lua6
Premium
join:2002-08-15
New York, NY
reply to laz45
You download Hacker.exe and your on your merry way... Spare me please

Daemon
Premium
join:2003-06-29
San Francisco, CA
reply to laz45
while i'm sure you're kidding, if you have to ask, you aren't talented enough to do it.
--
-Ryan
Find me in the networking and Microsoft help forums


MightWolf

join:2002-06-17
Windsor, ON
reply to laz45
Actually, reading the details, it will be practically impossible to "shutdown the internet" - the attacker would need to know both end-points of all TCP connections.....


tomkb
Premium
join:2000-11-15
Avon, OH
clubs:
·RoadRunner Cable


1 edit
reply to laz45
said by laz45 See Profile:
How can this be done, i wanna do it

You have to hold the 'g' key down on your keyboard while booting up. Once you get to the login screen, release the 'g' key, login, and hold the down the 'g' key again until the icons appear on the left side of your screen.

This will effectively shut your portion of the internet down (maybe your whole city block). But you have to have a broadband connection and not dialup because you won't be connected to the internet at first.


bky
moof moof
Premium
join:2002-07-05
Austin, TX
reply to tdkyo
I think the article is referring to bigger routers like cisco


MightWolf

join:2002-06-17
Windsor, ON
Well it's not like a hacker will spend hours tracking a home user's TCP inbound and outbound connections just so he can shut them down.


HardwareLust
Subaru WRX Maniac
Premium
join:2002-01-02
Harrisburg, PA
clubs:

said by MightWolf See Profile:
Well it's not like a hacker will spend hours tracking a home user's TCP inbound and outbound connections just so he can shut them down.

Depends on how bad you wanna mess with the guy at the other end. There's several people I would love to do this to, but I'm way too lazy.
--
Where the hell are my stars that I worked so hard for???

LoungeLizard2

join:2003-11-21
Vallejo, CA
reply to MightWolf
Wouldn't they only need to shut down the few main DNS servers of the internet. Unless you know the actual IP address of all the web pages you visit, you would be out of luck.


garagerock
Premium
join:2002-06-14
Louisville, KY

reply to TrainBuff
Come on.

Unless parties out there are privy to the locations of all of the root servers, I don't see this as a reality.

Is it scary that someone found a way to exploit TCP? Of course it is. But it looks like the gov't geeks are working on it...LOL, we should have a fix for it in about 5 years


wolfox
Gentle Wolfox

join:2002-11-27
Dunnellon, FL

reply to laz45
said by laz45 See Profile:
How can this be done, i wanna do it

Does your mommy know that you are playing with her cable provisioned PC?
--
Nothwest Arkansas' ONLY all Techno Radio Webcast, powered by SBC DSL!


PloKoon
Bumper Sticker Doctrine

join:2002-01-06
Cherry Hill, NJ

reply to laz45
said by laz45 See Profile:
How can this be done, i wanna do it

Pssst... go here: »www.turnofftheinternet.com/. Don't tell anyone!!
--
Real change happens when the pain of staying the same becomes greater than the pain of changing.


SpitefulCrow
Insert Witty Tag Here
Premium
join:2003-06-04
Berkeley, CA
reply to MightWolf
Eh, not really, just enough to reset the long-running BGP sessions on most of the major backbones.


dpocoroba
Premium
join:2000-11-14
224.0.0.5

reply to TrainBuff
Crazy news indeed. BGP resets are far from fast... it takes a few mins or so for less then 100 or so routes. Not to mention core backbone routers hold some 150,000 + internet routes. Major re-convergence time if that was to start happing. Another good reason to use MD5 on all protocols that support it.
--
"Knowledge is contagious, infect"


koitsu
Premium
join:2002-07-16
Mountain View, CA
reply to TrainBuff
Shutting down the Internet would quite possibly be one of the most positive things ever to happen.

Good thing dreams are free, eh?
--
Making life hard for others since 1977.

LoungeLizard2

join:2003-11-21
Vallejo, CA
reply to SpitefulCrow
Thanks

clarkism

join:2002-01-27
San Francisco, CA
reply to dpocoroba
That would have to be a highly coordinated attack to reset several bgp sessions.

Is MD5 in clear text?
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