WPA Encryption Cracked In 60 Seconds
carusoj writes "Computer scientists in Japan say they've developed a way to break the WPA encryption system used in wireless routers in about one minute. Last November, security researchers first showed how WPA could be broken, but the Japanese researchers have taken the attack to a new level. The earlier attack worked on a smaller range of WPA devices and took between 12 and 15 minutes to work. Both attacks work only on WPA systems that use the Temporal Key Integrity Protocol (TKIP) algorithm. They do not work on newer WPA 2 devices or on WPA systems that use the stronger Advanced Encryption Standard (AES) algorithm."
So we'll be able to get more free wireless now?
TFA lists AES. I'm curious what else is considered useful. Anybody using hacked routers to run tomato and the like are very welcome to discuss their security thoughts.
"Common sense will be the death of us all"
Backtrack really doesn't "do" anything, it's just an awesome integration of separate tools.
aircrack is the base package that would most probably implement this.
Lucky for me, I use WEP, so I'm safe.
The question is can anything be secure in the long term if an attacker can monitor the conversation between alice and bob 24/7? Sometimes a bit of obscurity can go a long way. Good luck trying to sniff my shielded network cables. Yes, I've heard the tempest stories but I'm jumping to the conclusion that those techniques are only available to big $$ governements institutions and are not used by the random drive-by hacker (yet..)
So, does this mean it's time to start working on whatever the replacement will be for WPA2? WPA is broken. . . but at least we can use WPA2 (for now). I'm guessing WPA2 will someday be broken, so we need to have something to replace it which has not (yet) been broken. Seems like wireless security rests on a never-ending game of move the goal, before the goal is reached (where the 'goal' for crackers is to crack the 'current' security protocol).
Although, thinking about this more, it makes me wonder - does anyone ever 'record' encrypted traffic from targets of interest, in the hopes that, maybe right now they can't crack it, but maybe in 2 or 3 years, they'll be able to crack it, and if they have a 'recording' of the cyphertext, which they can later decrypt, they can get possibly interesting info/data (data could very easily still be useful and interesting 3 or 5 years from now, particularly things like state/corporate secrets, but even more mundane info like people's social security numbers, answers to online password 'reset' security questions, etc).
I suppose that if I could think of it, someone else already has, and already is doing it.
So, from that standpoint, even if the security researchers stay 'ahead' of the blackhats, the blackhats can still get useful info within a relatively useful amount of time. Just because you've upgraded to WPA2 or WPA+AES, doesn't mean you're completely protected, if someone snagged encrypted traffic in the past which was 'secured' by TKIP.
The original paper is here
That's why I don't even bother with passwords on my wireless at ... Hello Friends! Please to hand over your credit and debit card informations at this time, I am thanking you not a lot. My name is Desmund Boutrous-Boutrous Gali Johnson IV and I have some news of the not so happy sort. Your uncle, and my business mentor and/or friend, McGuyver has been known to be passed away at this time going forth.
Please to send me monies by any means as possible soonest.
Wamerst thoughts and heated Regards, BBGIV
(that's about how long it would take to crack it. Damn.)
Sent from your iPad.
Jokes are supposed to be funny.
And the most important piece of information comes at the very end of the summary (just not to diminish the sensation or prevent FUD):
They do not work on newer WPA 2 devices or on WPA systems that use the stronger Advanced Encryption Standard (AES) algorithm.
Are you *positive* that the VPN connection is uncrackable? If it's going over wireless, then if someone is recording the cyphertext, they will be able to recover the VPN cyphertext out of the WPA cyphertext. If they then know of a way to recover the 'cleartext' from the VPN cyphertext, then you are still leaking your data. If the VPN system is so secure, why aren't we using it for the wireless connection? That is, make the wireless network a VPN using the same algorithms you use for your VPN?
They have just found a way to decrypt a packet using the WEP chopchop algorithm. Master key can't still be recovered. Move along, this isn't news
Linux forever
Minor nitpick with the article: WPA is a general wireless security protocol[1] which isn't limited to wireless routers. Regular APs (Access Points) use it, as of course do wireless clients.
[1] Actually, to nitpick myself, WPA isn't even technically a protocol, it's a certification program which confirms that particular devices implement the IEEE 802.11i standard
MAC filters are worthless, always have been (it's trivial to change the MAC on a device to a whitelisted one). And I don't see any evidence that WPA2/AES is "fast becoming insecure", as this attack specifically doesn't work against that setup.
---- Den ene knappen er powerknapp, den andre er Bender voice knapp "Bite My Shiny Metal Ass"
I don't know why people insist on using WEP, WPA, WPA2, etc..
I just made my SSID "Logon for only $3.99 per minute"
Haven't ever seen my neighbors log on even once.
_
TKIP was fundamentally broken, by design. We knew that. TKIP was invented as an intermediate encryption that could run on the same hardware that WEP ran on. It allowed router manufacturers to use something better than WEP without having to beef-up their hardware. It worked well, and bought several years before it was completely broken. Anyone who has a router using TKIP bought at a bad time, and is stuck with something that's only a little better than WEP. The solution is to buy a router that supports WPA2, which has real AES encryption.
What? A 7 year old Linksys WRT54G can handle 24-30Mbps with AES encryption, current versions are even faster, and if you choose wisely you can find 80-90Mbps home routers from Dlink/Netgear today.
These routers are more than adequate for more than "light surfing".
And don't forget to set them for different channels.
Alternately, if you run dd-wrt, you can try setting up mutltiple virtual wireless networks and have them broadcast separate SSIDs so it looks like you've got two routers.
As they say, locks are only good for honest people.
The main reason you want a strong lock is not because they're unbreakable, but because your neighbor should be the easier target.
Yay solidarity! =)
Manpages.
Because they are transmitted bright and clear all over the place? Whitelisting the authorised MAC addresses assumes that you do not trust the encryption (or there is none). If you assume the encryption is broken, you assume anyone can listen to the network and intercept any and all MAC addresses being transmitted (in [nearly?] every single packet).
TKIP (Timed Key Interchange Protocol, for those who don't know) does have a weak spot. This is that the new key is sent out from the access point on a regular basis. Cisco's implementation (supported by most companies that supply 802.11a equipment) makes two changes. One is that the time value set is a maximum value (the key change interval is actually random). The other is that the new key is sent via the encrypted session. You therefore have to have cracked the old key to receive the new key.
It will be interesting to see if that is discussed when the paper is presented.
And ye shall know the truth, and the truth shall make you free.
John 8:32(King James Version)
Ah - the "If you want to outrun a bear, the key is not to outrun the bear - it's to outrun the person behind you" principle. That sort of wisdom ranks up there with, "Women are like square roots - if they're under 16, you should do them in your head."
Take that however you will.
That's borderline retarded. The security isn't worth a damn and those who bypass it won't even be traceable via their MAC address, because you made them imitate your computer.