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WPA is going the way of WEP, cracked in 15 minutes flat

Daniel Fleshbourne   on 06 November 2008 - 11:04 · 22 comments & 11881 views

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According to PC World the days of securing your WIFI network using Wi-Fi Protected Access (WPA) may be over, as researcher Erik Tews will show how he was able to crack WPA encryption in around 15 minutes at a the Tokyo PacSec Conference in two weeks time.

WPA was designed to overcome the insecurities in hacked Wired Equivalent Privacy (WEP) which can be hacked in a few minutes using a modern laptop.

Erik Tews will be demonstrating how he cracked the WPA encryption to read the data being sent from a router to a laptop.

To read the data being sent Tews found a way to crack the Temporal Key Integrity Protocol (TKIP) key without resorting to using a dictionary attack which, security experts have agreed that the protocol might be vulnerable too.
Although this is a big step Tews was still unable to crack the keys used to encrypt the data being sent back to the router from the laptop.

If the demonstration lives up to its headline then the days of WPA look to be numbered. This would come as a big blow to both consumers and corporations alike.

WPA is the most common standard of encryption in uses but, there is also a newer more secure standard WPA2, (which uses Advanced Encryption Standard (AES) and is unaffected), although support is still patchy. Consumer may find they are forced to still rely on the now unsecure WPA encryption to connect their devices to the network.

For Business this is even bigger headache. The TJ Maxx chain had hundreds of millions of customer details stolen due in part to the fact that they were still using the cracked WEP standard. It’s easy to see a situation where hackers may try to do the same using WPA forcing corporate users to VPN or WPA2 dumping devices that can’t support these protocols.

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#1 cork1958 on 06 Nov 2008 - 11:19
Wouldn't and haven't ever used wireless anything anyhow. You always KNEW that WAS NOT secure, didn't you?!
(2 replies) #2 TurboTuna on 06 Nov 2008 - 11:53
The details are sketchy, Cracking something like WPA relies mainly on the end-user.

Use a generic SSID and you're boned.
USe a crappy passkey and you're boned.
Combine the two, and you're pretty secure.
#2.1 unknownsoldierX on 06 Nov 2008 - 20:29
SSID has no bearing on security.
#2.2 TurboTuna on 07 Nov 2008 - 23:33
unknownsoldierX said,
SSID has no bearing on security.


I believe a certain function of security uses the SSID as a salt, to encrypt transmission.
(2 replies) #3 hjf288 on 06 Nov 2008 - 11:55
I wouldnt think this affects WPA-AES (Ver 1) ?
#3.1 aarste on 06 Nov 2008 - 12:15
AES encyrption is part of WPA2 I believe, so no. WPA-PSK (pre shared key) is the SOHO version that's on pretty much every home wireless router using TKIP encryption.
#3.2 SharpGreen on 06 Nov 2008 - 16:04
The router I have supports using AES with WPA,so hjf288 is right.
(1 reply) #4 MMaster23 on 06 Nov 2008 - 12:34
This is old news .. 2 weeks ago details leaked out on how to crack WPA using GPUs
#4.1 Magallanes on 06 Nov 2008 - 13:14
The difference with this method and to crack utilizing the gpu is the crack wpa using GPU method do utilize force brute, hence to break a password can take from several years to a ten thousand of centuries.
#5 Reeve on 06 Nov 2008 - 12:41
Well, WPA is old, WPA2 with AES encryption is still secured, so I agree with lots of what was said above.
#6 +Mercellus on 06 Nov 2008 - 12:58
This doesn't really surprise me. I've been using WPA2 with AES since I installed DD-WRT on my router last year, hid the SSID, and applied MAC filtering.
(3 replies) #7 DomZ on 06 Nov 2008 - 13:28
Shouldn't that be TK Maxx in the article not TJ?

Even though your all saying you use WPA2, in reality a lot of non tech people leave it as default. BTHomeHub's are the UK's most used router (in conjunction with BT) and these come with WEP encryption by default, and even the algorithm the factory uses to create the keys has been cracked long long ago. So by getting the BSSID and the ESSID you have a list of possible keys.

Either way, In my immediate area there's at least 4-5 WEP routers. So I think if WPA get's into the same rut as WEP then this is going to be a problem.
#7.1 +mrbester on 06 Nov 2008 - 13:39
It's only TK Maxx in UK.

First thing I did with my 1st gen HomeHub was alter the encryption settings, even though I don't have a single wireless device.
#7.2 +stevember on 06 Nov 2008 - 14:07
mrbester said,
It's only TK Maxx in UK.

First thing I did with my 1st gen HomeHub was alter the encryption settings, even though I don't have a single wireless device.


Best just turn it off.
#7.3 dragon2611 on 06 Nov 2008 - 22:09
The New Homehub2 has WPA-psk/Wpa2-psk enabled by default.

#8 sentio on 06 Nov 2008 - 13:48
I still think AuthPF and OpenVPN is the most secure option for me.
Of course, it's not really a user-friendly alternative to the crap you see on shelves.
#9 TRC on 06 Nov 2008 - 15:17
Aw, I thought Windows Product Activation was finally going away.
#10 Soldiers33 on 06 Nov 2008 - 18:47
i want to learn how to crack password (for educational purposes btw)
#11 smooth_criminal1990 on 06 Nov 2008 - 18:47
they still haven't said whether its just WPA-PSK or WPA enterprise as well
#12 Exosphere on 06 Nov 2008 - 19:10
I don't understand those that use wireless at home, the best alternative if you can't wire your house is LAN over MAINS is not only secure but very convenient, wherever you have a mains socket, you have your LAN. And reasonably fast speeds too.
Unless someone taps into my mains & cracks the secuirty on that network, I'm more secure than wireless would be.
(1 reply) #13 mclaren05 on 06 Nov 2008 - 20:38
Ive been on WPA2 ever since entering the wireless world. Something doesnt support it and only supports WEP or/and WPA? It can go to hell

One of the 2 reasons I dont have a PSP.
#13.1 Amodin on 06 Nov 2008 - 20:51
PSP is the only reason, so I can update it, but I believe I can connect to it via USB and update it. So, most likely I will update my WAP to WPA2.

Oh and good luck getting past my Astaro.

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