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#1 2021-04-02 15:29:18
- LaserByte
- Contributor
- Registered: 2014-05-18
- Posts: 46
Help, read block 0, Mifare 1k
Hi, I can't read block 0, I can't write block 1 and 2
but, I have key A and B.
I can read block 1 and 2.
I can write block 3.
what I'm looking for is to be able to read block 0.
this is the reading.
-------------------------------------------
[+] UID: 56 BF 68 8F
[+] ATQA: 00 04
[+] SAK: 08 [2]
[+] Possible types:
[+] MIFARE Classic 1K
[=] proprietary non iso14443-4 card found, RATS not supported
[+] Prng detection: hard
[=]
[=] --- Tag Signature
[=] IC signature public key name: NXP Mifare Classic MFC1C14_x
[=] IC signature public key value: 044F6D3F294DEA5737F0F46FFEE88A356EED95695DD7E0C27A591E6F6F65962BAF
[=] Elliptic curve parameters: NID_secp128r1
[=] TAG IC Signature: 3BF24654C73F25D86762511285C3ADB4B06B529A1267439CBDA5E6EA57159AAE
[+] Signature verification: successful
[?] Hint: try `hf mf` commands
--------------------------------------------
if anyone can help me, any way to read block 0.
I have searched the forum, but I can't find how
thanks.
read block 0, Mifare 1k
Last edited by LaserByte (2021-04-02 15:30:23)
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#2 2021-04-02 20:09:20
- myhdh10
- Contributor
- Registered: 2021-04-02
- Posts: 2
Re: Help, read block 0, Mifare 1k
Did you try nested attack?
If you cannot access the block 0, you can try another one that you know the other block keys for the nested.
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#3 2021-04-03 17:56:07
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,538
- Website
Re: Help, read block 0, Mifare 1k
check the access rights for sector 0 to see what you can or can't do.
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#4 2021-04-03 18:29:01
- LaserByte
- Contributor
- Registered: 2014-05-18
- Posts: 46
Re: Help, read block 0, Mifare 1k
Thanks iceman
this is the trailer reading ....
---------------------------------------------------------------------
[+] data: 00 00 00 00 00 00 E6 98 71 CB 00 00 00 00 00 00
[=] --------- Sector trailer -------------
[=] key A........ 000000000000
[=] acr.......... E69871
[=] user / gdb... cb
[=] key B........ 000000000000
[=] Access rights decoded
[=] block 0 none
[=] block 1 rdAB dectrAB
[=] block 2 rdAB dectrAB
[=] block 3 wrAbyB rdCbyAB wrBbyB
[=] --------------------------------------
I have tried to change the value, but it still does not allow me to see it,
this is the value that changes
old: E6 98 71 CB new: 7C 37 88 00
As I already said, I know the keys and can write block 3, but I can't write block 1 and 2
and i can't see the whole block 0
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#5 2021-04-04 06:19:17
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,538
- Website
Re: Help, read block 0, Mifare 1k
good, good, so if you can write a new sector trailer (block3) ... what values would be good ones to write?
Hint; If you compare with other sector trailers on your card
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#6 2021-04-04 13:56:31
- LaserByte
- Contributor
- Registered: 2014-05-18
- Posts: 46
Re: Help, read block 0, Mifare 1k
sorry, it was an error of appreciation.
the line of code says it was written ...
----------------------------------------------------------------------------------------------
[usb] pm3 --> hf mf wrbl 3 b A0A1A2A3A4A5 FFFFFFFFFFFF787788CBA0A1A2A3A4A5
--block no 3, key B - A0 A1 A2 A3 A4 A5
--data: FF FF FF FF FF FF 78 77 88 CB A0 A1 A2 A3 A4 A5
isOk:01
----------------------------------------------------------------------------------------------
but when reading block (3) again, it appears that nothing has been written, it is the same as before.
the line of code was not written, but it says (-> isOk: 01 <-)
----------------------------------------------------------------------------------------------
[usb] pm3 --> hf mf rdbl 3 b A0A1A2A3A4A5
--block no 3, key B - A0 A1 A2 A3 A4 A5
[+] data: 00 00 00 00 00 00 E6 98 71 CB 00 00 00 00 00 00
[=] --------- Sector trailer -------------
[=] key A........ 000000000000
[=] acr.......... E69871
[=] user / gdb... cb
[=] key B........ 000000000000
[=] Access rights decoded
[=] block 0 none
[=] block 1 rdAB dectrAB
[=] block 2 rdAB dectrAB
[=] block 3 wrAbyB rdCbyAB wrBbyB
[=] --------------------------------------
Can't change read permissions?
Can't read block zero (0), no way?
I use proxmark easy ..
maybe another hardware?
maybe another way?
sorry for my error....
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