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cuamckuu / nfc-frog

Contactless EMV credit card reader
MIT License
280 stars 52 forks source link

Can't get AFL #13

Open cabiamdos opened 2 years ago

cabiamdos commented 2 years ago

Hello, so basically I have a VISA card (from bbva es) that says "Can't get AFL" when executing "sudo ./nfc-frog GPO". It has happened with other software readers (like the proxmark reader) and one android reader, but other android reader could successfully read the card. Any ideas? Thanks

cuamckuu commented 2 years ago

Hi, you could try another modes:

sudo ./nfc-frog fast # Fast brute mode
# or
sudo ./nfc-frog full # Full brute mode
cabiamdos commented 2 years ago

Yes, I have tried all of them, but they end up in errors or the program freeze.. Also, is there a way to run this on windows with mingw or something? Thanks

cuamckuu commented 2 years ago

You could use it, if you could install libnfc on Windows, and connect pn532 there with propper drivers.

Also, check output of nfc-pool and nfc-list for your card, is it working propperly?

cabiamdos commented 2 years ago

I don't have pn532, I have the acr122u (I believe it is a cloned version because I got it for cheap, but it works) I installed your program on a raspberry pi, I tried on windows with mingw (bash) but I wasn't able to make it work. But it just happen with one bbva card I have, and it happens with some readers and other one it works fine. Others card I have works awesome. I will be following your steps and tell you

cabiamdos commented 2 years ago

Well, I haven't been able to run it on windows. I don't understand what output of nfc-pool or nfc-list you refer to.

Here is the issue with this VISA card: https://www.mediafire.com/view/p4s8xaevcpkhfrb/photo_2021-12-25_00-36-38.jpg/file

It has happened the same issue with others MASTERCARD I have, but this one isn't activated or doesn't have any previous transaction.

Any ideas?

cuamckuu commented 2 years ago

After installing libnfc (which is required to use nfc-frog), you will also get nfc-pool and nfc-list installed, so check if they work propperly and can read card info.

Also check if card is close enough to reader and that it don't move while reading

cabiamdos commented 2 years ago

For windows, to install libnfc I have to install cmake (https://github.com/nfc-tools/libnfc/blob/master/README-Windows.md). It is looking long to me. I still don't know how to use nfc-pool and nfc-list on my raspberry pi (linux)

The card reader and the card doesn't move.

I have read that MSD transactions are getting obsolete for VISA when trying to emulate the POS terminal to read the data, I have; that could e the reason. But this just happens with one card. Maybe it can be implemented more options like this: Transaction type - qVSDC or M/Chip. Transaction type - qVSDC or M/Chip plus CDA (SDAD generation). Transaction type - VSDC. For test only. Not a standard behavior. VISA. generate AC from GPO.

cuamckuu commented 2 years ago 
root@kali:~# nfc-list -h
nfc-list uses libnfc 1.8.0
usage: nfc-list [-v] [-t X]
root@kali:~# nfc-poll -h
nfc-poll uses libnfc 1.8.0
usage: nfc-poll [-v]
  -v     verbose display