Proxmark3 community

addy

Contributor

Registered: 2016-09-19

Posts: 16

programming iclass credential that is uninitialized unconfigured

Hi,

I am trying to read write an iclass bosch 16k access sticker (they read as genuine hid iclass from the CSN) that has not been configured. I have been trying to r/w to block 7 but nothing seems to work. I have tried the default pico pass keys and HID keys (see below) but get a 'failed to obtain CC! Tag-select is aborting.' error.

Can someone point out what I am missing?

thanks

pm3 --> hf search u
[!] timeout while waiting for reply.
   CSN: xx xx xx 00 FB FF 12 E0
    CC: FE FF FF FF FF FF FF FF
[+]     Mode: Personalization [Programmable]
        Coding: ISO 14443-2 B/ISO 15693
[+]     Crypt: Secured page, keys not locked
[!]     RA: Read access not enabled
 Mem: 32 KBits/3 App Areas (255 * 8 bytes) [FF]
        AA1: blocks 06-FF
        AA2: blocks 100-FF
        OTP: 0xFFFF

KeyAccess:
        Read A - Kd
        Read B - Kc
        Write A - Kd
        Write B - Kc
        Debit  - Kd or Kc
        Credit - Kc
 App IA: FF FF FF FF FF FF FF FF
[+]       : Possible iClass (legacy tag)

[+] Valid iClass Tag (or PicoPass Tag) Found

pm3 --> hf iclass readblk b 07 k AFA785A7DAB33378
[-] failed to obtain CC! Tag-select is aborting...  (0)
pm3 --> hf iclass readblk b 07 k 2E12CCD2F662BE76
[-] failed to obtain CC! Tag-select is aborting...  (0)
pm3 --> hf iclass readblk b 07 k 5cbcf1da45d5fb4f
[-] failed to obtain CC! Tag-select is aborting...  (0)
pm3 -->

Last edited by addy (2019-10-18 07:06:49)

iceman

Administrator

Registered: 2013-04-25

Posts: 9,538

Website

Re: programming iclass credential that is uninitialized unconfigured

picky position with tag and antenna.  try different ones until you get the sweetspot

addy

Contributor

Registered: 2016-09-19

Posts: 16

Re: programming iclass credential that is uninitialized unconfigured

picky position with tag and antenna.  try different ones until you get the sweetspot

played around with tons of positions without any luck. Thinking maybe the keys I am using are not correct.

Is there a way to verify this?

addy

Contributor

Registered: 2016-09-19

Posts: 16

Re: programming iclass credential that is uninitialized unconfigured

solved. was using the wrong key. but new problem found...

after I got in the card I wrote to block 0. The Keys I have no longer work

pm3 -->
pm3 --> hf search
[!] timeout while waiting for reply.
   CSN: 86 2F 2B 00 FB FF 12 E0
    CC: FF FF FF FF 4D F7 FF FF
[+]     Mode: Personalization [Programmable]
        Coding: ISO 14443-2 B/ISO 15693
[+]     Crypt: Secured page, keys not locked
[!]     RA: Read access not enabled
 Mem: 32 KBits/3 App Areas (255 * 8 bytes) [FF]
        AA1: blocks 06-FF
        AA2: blocks 100-FF
        OTP: 0xFFFF

KeyAccess:
        Read A - Kd
        Read B - Kc
        Write A - Kd
        Write B - Kc
        Debit  - Kd or Kc
        Credit - Kc
 App IA: FF FF FF FF FF FF FF FF
[+]       : Possible iClass (legacy tag)

[+] Valid iClass Tag (or PicoPass Tag) Found


pm3 --> hf iclass dump k F0E1D2C3B4A59687 v
[-] failed to obtain CC! Tag-select is aborting...  (0)
[-] selecting tag failed
[+] retry to select card
[+] CSN  | 86 2F 2B 00 FB FF 12 E0
[+] CCNR | FF FF FF FF 4D F7 FF FF
[+] authing with diversified key: AE 82 7C A9 47 51 3F 8A
[-] authentication error
[!] failed authenticating with debit key
pm3 -->

I wrote the following to block 1

hf iclass writeblk b 01 d 12FFFFFF7F1FFF3C k F0E1D2C3B4A59687

Question:

How do I calculate the correct new key?

Last edited by addy (2019-10-19 05:11:56)