Recieving error messages on cisco router

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WPA2 passphrase, in just a matter of hours. This is something that I’ve been testing and using for a while now, but Stefan over at . Stefan’s code isn’t quite ready for release yet, so I’ve open-sourced Reaver, my WPS attack tool. Reaver is stable and has been tested against a variety of access points and WPS implementations. For those interested, there is also a commercial version available with more features and speed improvements.

Is it only susceptible to routers with WPS enabled? How long does it take to crack a 15 character password? You should read the paper I linked to from . There is no dictionary, and yes, it only works on routers with WPS enabled.

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The length and strength of the WPA passphrase is irrelevant. Hi Craig I am using Kali linux 1. 4 digit pin x 2 the router gives you its password. Doesn’t matter, once the WPS is cracked can pull the password from router. Don’t have to crack password, thats why reaver works.

So I got the thing compiled, on linux. You really should try and compile it on a different unix, fix all the includes linux silently adds but other unices don’t, heck even run that README through a text-formatter set to less than 80 characters wide, do some cross-testing and all that. Some sort of verbose reporting would be nice too. Kismet sees beacons, your software doesn’t. As much as I dislike the hype around python, I think I’ll wait for Stefan’s code as it looks like having a better shot at actually working on systems not equal to the author’s.

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What in the code is specifically tied to my computer? It is plainly stated that Reaver is only supported on Linux, so building on other unixes is not supported. And there is a verbose option. It’s -v, as shown in the help output. Don’t use monitor mode, isn’t needed. I will pay more attention on this article and do some test for this software. WPA is not cracked, WPS is.

Which, if you have WPS enabled, results in the same outcome, but is not the same thing. I agree with you, the title of the post is wrong. WPA is not cracked, the attack is on WPS. The failed association issues have been fixed in the latest subversion check-in. Any tips for when it seems that a PIN wont iterate? Im assuming its a lockout or somesuch, but I figure it’s reasonable to ask you about it.

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How long did it run for? If a packet gets dropped or corrupted the AP may remain in its WPS state waiting for a the next message for up to 2 minutes until it allows new WPS attempts again. I’m running -vv, but it seems I may have been blacklisted from the AP. I tried giving it a few minutes to recover, but nothing changed. I changed my HW address to something different, thinking that may solve it and allow me to continue the brute force, but no beans. Maybe im justs too far away. Oh, forgot to answer your question.

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It runs for about 15 minutes before this occurs. Had the same problems, turn of monitor mode and just use wlan0. I get occasional timeouts, but they appeared from the beginning. I tried the attack again on the same TP-Link router and Reaver v1. I tried Reaver on two other TP-Link routers and it found successfully their WPS PINs for less than 10 hours.

I’ve found that many of the TP-Links have memory leaks that cause them to partially lock up after a certain number of attempts, this may be what has happened to you. Usually requires a reboot of the AP. I wrote a little scripts to try and curb the time reaver takes re-trying duplicate pins over and over again. Also, cant this method be improved N fold with multiple cards? Just have 5 or 6 alfa cards all controlled by the same app, trying various pins etc. Multiple WPS attacks usually screw up the AP’s internal WPS state machine, and even when it doesn’t you still don’t get an N fold increase in speed because the speed bottleneck is on the AP side anyway.

So multiple different hw addresses can’t try different pins at the same time? It’s limited to one HW address at a time? Although some APs can handle multiple WPS registrars from different hw addresses, you still don’t see much speed improvement due to the limited resources of the AP. It’ll be interesting to see how the development community approaches the optimization in exploiting this particular weakness. This seems like something that could be logarithmically shared as tasks between hw resources. Also, thanks for the hard work.

04, with a Alpha USB AWUS036H card. Ubuntu wi-fi tools so I’m assuming this is ok? Router supports WPS and is turned on. Could the author put up some working examples of where this has worked? This’ll create a stacktrace that would be usable to the dev. This is a known issue that’s been reported on the project page.

The latest SVN code should fix the seg fault though. 64 with the AWUS036H and rtl8187 driver. So to try first if the association is allowed you can run aireplay-ng with -1. Now the question is, why can we authenticate but not associate to an Access Point ? Does it have something to do with WPS ? Ok finally even the 2 on 20 fail.


In the end, 0 on 20. Is it just that my wireless driver’s not supported? It works fine for aircracking WEP with injection. You have to specify mon0 as the interface to Reaver since that is the interface that is actually in monitor mode. I have the same problem with mon0, any ideas?

I have another problem, the process proceeds very slowly after about an hour advances 0. Why are you publishing information which will almost certainly result in someone else suffering a loss because of it? The exploit has been available for some time, releasing the code will force manufacturers to fix the hole. What are reasons reaver cannot associate itself with base station?

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OK my mistake, from what I see depends on the speed of wifi card model. Please tell me what models you used, what you recommend for best performance? How can you scan to see if a router is using wps? Also, if you crack the wps, can this be used on wpa2 or wpa2-psk?

WPS is independent of the WPA protocol in use. So if you get the WPS pin you can recover the WPA key if you are using WPA or WPA2. APs broadcast support for WPS in their beacon packets. You can look for the WPS information element in wireshark.

Thanks for your tool, I used by i have this problem: Any idea? Perhaps the router is not vulnerate ? Considering you had at least one pin that got a response I’d say the AP is vulnerable. The problem is you are having trouble associating with it, which is usually an indication of poor signal strength or a lot of interference. I used for the test, Backtrack 4 r2 and only install your tool version 1. I follow your recomendation, I put my wiifi card more near to de AP.

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Do you think the AP is vulnerable? SSID’s but same result, and reaver going to crack same PIN again and again, What a reason? Same AP, same PSK, Different results. Tested on my AP at home and was humbled to say the least. Had to do a couple of patches to the drivers as the association with the AP kept failing. At closer inspection, I noticed that mon0 was pinned to fixed channel -1 when using aireplay to get the association.

The fix can be found on the aircrack site if any other users experience the same problem. Is there any way to check router whether the PIN feature is enabled or not? Some routers actually expose their PIN number in their factory set SSID. For instance, one Sitecom router here has six hex digits in its SSID. After converting those to seven decimal digits and modifying reaver1. 2 a little bit, the PSK was recovered in just a few seconds. 3-4 mins to keep the router from banning, that could decrease time.

Glad to hear it’s working well. Unfortunately the lock outs are not usually done on a per-MAC basis, they just lock everyone out for a pre-defined period of time. If the attacker receives an EAP-NACK message after sending M4, he knows that the 1st half of the PIN was incorrect. I’ve noticed, using Reaver, that in the PIN attempts the second half of the PIN is reused quite frequently, sometimes 3 times out of 5 in a row. Is this because the the second half of the PIN cannot be tested until the 1st half has been successfully identified? After re-reading the paper I think this is the case, but I was hoping for confirmation.

Basically, you only have a 7 digit pin since the last digit is a checksum, so the first three digits of second half of the pin will always be the same in Reaver until the first half of the pin is cracked. I’m running in -vv mode and it’s not showing me the pins it is trying, only 2. I said just not showing the pins it is trying to use. I’m having lots of fun testing this tool! My stuck at a number like 1.