local utils = require('utils') local getopt = require('getopt') local cmds = require('commands') local read14a = require('read14a') -- --- ------------------------------- -- Notes ------------------------------- --- -- --[[ ---Suggestions of improvement: --- Add support another types of dumps: BIN, JSON --- Maybe it will be not only as `mfc_gen3_writer`, like a universal dump manager. --- Add undependence from the operation system. At the moment code not working in Linux. --- Add more chinesse backdoors RAW commands for UID changing (find RAW for the 4 byte familiar chinese card, from native it soft: http://bit.ly/39VIDsU) --- Hide system messages when you writing a dumps, replace it to some of like [#####----------] 40% -- iceman notes: -- doesn't take consideration filepaths for dump files. -- doesn't allow A keys for authenticating when writing -- doesn't verify that card is magic gen3. -- doesn't take several versions of same dump ( -1, -2, -3 ) styles. --]] -- --- ------------------------------- -- Script hat ------------------------------- --- -- copyright = '' author = 'Winds' version = 'v1.0.0' desc = [[ The script gives you a easy way to write your *.eml dumps onto normal MFC and magic Gen3 cards. Works with both 4 and 7 bytes NXP MIFARE Classic 1K cards. The script also has the possibility to change UID and permanent lock uid on magic Gen3 cards. It supports the following functionality. 1. Write it to the same of current card UID. 2. Write it to magic Gen3 card. 3. Change uid to match dump on magic Gen3 card. 4. Permanent lock UID on magic Gen3 card. 5. Erase all data at the card and set the FF FF FF FF FF FF keys, and Access Conditions to 78778800. Script works in a wizard styled way. ]] example = [[ 1. script run mfc_gen3_writer ]] usage = [[ Select your *.eml dump from list to write to the card. ]] -- --- ------------------------------- -- Global variables ------------------------------- --- -- local DEBUG = false -- the debug flag local files = {} -- Array for eml files local b_keys = {} -- Array for B keys local eml = {} -- Array for data in block 32 local num_dumps = 0 -- num of found eml dump files local tab = string.rep('-', 64) local empty = string.rep('0', 32) -- Writing blocks local default_key = 'FFFFFFFFFFFF' -- Writing blocks local default_key_type = '01' --KeyA: 00, KeyB: 01 local default_key_blk = 'FFFFFFFFFFFF78778800FFFFFFFFFFFF' -- Writing blocks local piswords_uid_lock = 'hf 14a raw -s -c -t 2000 90fd111100' local piswords_uid_change = 'hf 14a raw -s -c -t 2000 90f0cccc10' local cmd_wrbl = 'hf mf wrbl %d B %s %s' -- Writing blocks -- --- ------------------------------- -- A debug printout-function ------------------------------- --- -- local function dbg(args) if not DEBUG then return end if type(args) == 'table' then local i = 1 while args[i] do dbg(args[i]) i = i+1 end else print('###', args) end end -- --- ------------------------------- -- This is only meant to be used when errors occur ------------------------------- --- -- local function oops(err) print('ERROR:', err) core.clearCommandBuffer() return nil, err end -- --- ------------------------------- -- Usage help ------------------------------- --- -- local function help() print(copyright) print(author) print(version) print(desc) print('Example usage') print(example) print(usage) end -- --- ------------------------------- -- GetUID ------------------------------- --- -- local function GetUID() return read14a.read(true, true).uid end -- local function dropfield() read14a.disconnect() core.clearCommandBuffer() end -- --- ------------------------------- -- Wait for tag (MFC) ------------------------------- --- -- local function wait() read14a.waitFor14443a() end -- --- ------------------------------- -- Return key code 00/01 to string ------------------------------- --- -- local function KeyAB() if default_key_type == '00' then return 'KeyA' else return 'KeyB' end end -- --- ------------------------------- -- Check response from Proxmark ------------------------------- --- -- local function getblockdata(response) if response.Status == 0 then return true else return false end end -- --- ------------------------------- -- Check 0xFFFFFFFFFFFF key for tag (MFC) ------------------------------- --- -- local function checkkey() local status = 0 for i = 1, #eml do cmd = Command:newNG{cmd = cmds.CMD_HF_MIFARE_READBL, data = ('%02x%02x%s'):format((i-1), default_key_type, default_key)} if (getblockdata(cmd:sendNG(false)) == true) then status = status + 1 print(('%s %02s %s %s %s'):format(' ', (i-1), KeyAB(), default_key, 'OK')) else break end end if status == #eml then return true end end -- --- ------------------------------- -- Check Pissword backdor ------------------------------- --- -- local function checkmagic() --Have no RAW ISO14443A command in appmain.c cmd = Command:newNG{cmd = cmds.CMD_HF_ISO14443A_READER, data = piswords_uid_change .. GetUID()} -- sample check to pull the same UID to card and check response if (getblockdata(cmd:sendNG(false)) == true) then print('Magic') else print('Not magic') end end -- --- ------------------------------- -- Main function ------------------------------- --- -- local function main(args) -- --- ------------------------------- -- Arguments for script ------------------------------- --- -- for o, a in getopt.getopt(args, 'hd') do if o == 'h' then return help() end if o == 'd' then DEBUG = true end end -- wait() print(tab) -- --- ------------------------------- -- Detect 7/4 byte card ------------------------------- --- -- if string.len(GetUID()) == 14 then eml_file_uid_start = 18 -- For windows with '---------- ' prefix eml_file_uid_end = 31 eml_file_lengt = 40 else eml_file_uid_start = 18 -- For windows with '---------- ' prefix eml_file_uid_end = 25 eml_file_lengt = 34 end dropfield() -- --- ------------------------------- -- List all EML files in /client ------------------------------- --- -- local dumpEML = 'find "." "*dump.eml"' -- Fixed for windows local p = assert(io.popen(dumpEML)) for _ in p:lines() do -- The length of eml file if string.len(_) == eml_file_lengt then num_dumps = num_dumps + 1 -- cut UID from eml file files[num_dumps] = string.sub(_, eml_file_uid_start, eml_file_uid_end) -- cut numeretic UID print(' '..num_dumps..' | '..files[num_dumps]) end end -- p.close() -- if num_dumps == 0 then return oops("Didn't find any dump files") end -- print(tab) print(' Your card has UID '..GetUID()) print('') print(' Select which dump to write (1 until '..num_dumps..')') print(tab) io.write(' --> ') -- local uid_no = tonumber(io.read()) print(tab) print(' You have been selected card dump No ' .. uid_no .. ', with UID: ' .. files[uid_no] .. '. Your card UID: ' .. GetUID()) -- -- --- ------------------------------- -- Load eml file ------------------------------- --- -- local dumpfile = assert(io.open('./hf-mf-' .. files[uid_no] .. '-dump.eml', 'r')) for _ in dumpfile:lines() do table.insert(eml, _); end dumpfile.close() -- --- ------------------------------- -- Extract B key from EML file ------------------------------- --- -- local b = 0 for i = 1, #eml do if (i % 4 == 0) then repeat b = b + 1 -- Cut key from block b_keys[b] = string.sub(eml[i], (#eml[i] - 11), #eml[i]) until b % 4 == 0 end end print(tab) dbg(b_keys) dbg(eml) -- --- ------------------------------- -- Change UID on certain version of magic Gen3 card. ------------------------------- --- -- if (utils.confirm(' Change UID ?') == true) then wait() core.console(piswords_uid_change .. tostring(eml[1])) print(tab) print(' The new card UID : ' .. GetUID()) end print(tab) --checkmagic() -- --- ------------------------------- -- Lock UID ------------------------------- --- -- if (utils.confirm(' Permanent lock UID ? (card can never change uid again) ') == true) then wait() core.console(piswords_uid_lock) end -- print(tab) print(' Going to check the all ' .. KeyAB() .. ' by ' .. default_key) print(tab) -- if checkkey() == true then print(tab) if (utils.confirm(' Card is Empty. Write selected dump to card ?') == true) then for i = 1, #eml do core.console(string.format(cmd_wrbl, (i-1), default_key, eml[i])) end end else print(tab) if (utils.confirm(' Delete ALL data and write all keys to 0x' .. default_key .. ' ?') == true) then wait() for i = 1, #eml do if (i % 4 == 0) then core.console(string.format(cmd_wrbl, (i-1), b_keys[i], default_key_blk)) else core.console(string.format(cmd_wrbl, (i-1), b_keys[i], empty)) end end else print(tab) if (utils.confirm(' Write selected dump to card ?') == true) then print(tab) wait() for i = 1, #eml do core.console(string.format(cmd_wrbl, (i-1), b_keys[i], eml[i])) end end end end dropfield() print(tab) print('You are welcome') end -- --- ------------------------------- -- Start Main function ------------------------------- --- -- main(args)