From 545a1f385c4e9f3fc28729e3a4c6a50e080c72f9 Mon Sep 17 00:00:00 2001 From: "Merlokbr@gmail.com" Date: Thu, 5 Jul 2012 14:05:01 +0000 Subject: [PATCH] another "magic card" backdoor - command "read block". Added several commands to manipulate card data. --- armsrc/appmain.c | 3 + armsrc/apps.h | 1 + armsrc/mifarecmd.c | 95 ++++++++++++++++++++++++- client/cmdhfmf.c | 170 ++++++++++++++++++++++++++++++++++++++++++-- client/mifarehost.c | 31 ++++++-- client/mifarehost.h | 2 +- include/usb_cmd.h | 1 + 7 files changed, 288 insertions(+), 15 deletions(-) diff --git a/armsrc/appmain.c b/armsrc/appmain.c index 820a0378..3fdbed5c 100644 --- a/armsrc/appmain.c +++ b/armsrc/appmain.c @@ -758,6 +758,9 @@ void UsbPacketReceived(uint8_t *packet, int len) case CMD_MIFARE_EML_CSETBLOCK: MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); break; + case CMD_MIFARE_EML_CGETBLOCK: + MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); + break; #endif #ifdef WITH_ICLASS diff --git a/armsrc/apps.h b/armsrc/apps.h index 3723357e..7ed2867d 100644 --- a/armsrc/apps.h +++ b/armsrc/apps.h @@ -150,6 +150,7 @@ void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain) void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); // Work with "magic Chinese" card +void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); /// iso15693.h void RecordRawAdcSamplesIso15693(void); diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c index 4f4ce64d..d63b58e9 100644 --- a/armsrc/mifarecmd.c +++ b/armsrc/mifarecmd.c @@ -808,7 +808,7 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai }; }; - // write UID block + // write block if (workFlags & 0x02) { ReaderTransmitShort(wupC1); if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) { @@ -859,9 +859,100 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand)); LED_B_OFF(); - if (workFlags & 0x10) { + if ((workFlags & 0x10) || (!isOK)) { // Thats it... FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); } } + +void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){ + + // params + // bit 1 - need wupC + // bit 2 - need HALT after sequence + // bit 3 - need init FPGA and field before sequence + // bit 4 - need reset FPGA and LED + uint8_t workFlags = arg0; + uint8_t blockNo = arg2; + + // card commands + uint8_t wupC1[] = { 0x40 }; + uint8_t wupC2[] = { 0x43 }; + + // variables + byte_t isOK = 0; + uint8_t data[18]; + uint32_t cuid = 0; + + memset(data, 0x00, 18); + uint8_t* receivedAnswer = mifare_get_bigbufptr(); + + if (workFlags & 0x08) { + // clear trace + iso14a_clear_tracelen(); + iso14a_set_tracing(TRUE); + + iso14443a_setup(); + + LED_A_ON(); + LED_B_OFF(); + LED_C_OFF(); + + SpinDelay(300); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(100); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); + } + + while (true) { + if (workFlags & 0x02) { + ReaderTransmitShort(wupC1); + if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) { + if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error"); + break; + }; + + ReaderTransmit(wupC2, sizeof(wupC2)); + if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) { + if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error"); + break; + }; + } + + // read block + if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer) != 18)) { + if (MF_DBGLEVEL >= 1) Dbprintf("read block send command error"); + break; + }; + memcpy(data, receivedAnswer, 18); + + if (workFlags & 0x04) { + if (mifare_classic_halt(NULL, cuid)) { + if (MF_DBGLEVEL >= 1) Dbprintf("Halt error"); + break; + }; + } + + isOK = 1; + break; + } + + UsbCommand ack = {CMD_ACK, {isOK, 0, 0}}; + if (isOK) memcpy(ack.d.asBytes, data, 18); + + // add trace trailer + memset(data, 0x44, 4); + LogTrace(data, 4, 0, 0, TRUE); + + LED_B_ON(); + UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand)); + LED_B_OFF(); + + if ((workFlags & 0x10) || (!isOK)) { + // Thats it... + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); + } +} + diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c index eafb2919..4da6067a 100644 --- a/client/cmdhfmf.c +++ b/client/cmdhfmf.c @@ -1387,20 +1387,175 @@ int CmdHF14AMfCLoad(const char *Cmd) } } +int CmdHF14AMfCGetBlk(const char *Cmd) { + uint8_t memBlock[16]; + uint8_t blockNo = 0; + int res; + memset(memBlock, 0x00, sizeof(memBlock)); + + if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { + PrintAndLog("Usage: hf mf cgetblk "); + PrintAndLog("sample: hf mf cgetblk 1"); + PrintAndLog("Get block data from magic Chinese card (only works with!!!)\n"); + return 0; + } + + blockNo = param_get8(Cmd, 0); + if (blockNo >= 32 * 4 + 8 * 16) { + PrintAndLog("Block number must be in [0..255] as in MIFARE classic."); + return 1; + } + + PrintAndLog("--block number:%02x ", blockNo); + + res = mfCGetBlock(blockNo, memBlock, CSETBLOCK_SINGLE_OPER); + if (res) { + PrintAndLog("Can't read block. error=%d", res); + return 1; + } + + PrintAndLog("block data:%s", sprint_hex(memBlock, 16)); + return 0; +} + +int CmdHF14AMfCGetSc(const char *Cmd) { + uint8_t memBlock[16]; + uint8_t sectorNo = 0; + int i, res, flags; + memset(memBlock, 0x00, sizeof(memBlock)); + + if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { + PrintAndLog("Usage: hf mf cgetsc "); + PrintAndLog("sample: hf mf cgetsc 0"); + PrintAndLog("Get sector data from magic Chinese card (only works with!!!)\n"); + return 0; + } + + sectorNo = param_get8(Cmd, 0); + if (sectorNo > 15) { + PrintAndLog("Sector number must be in [0..15] as in MIFARE classic."); + return 1; + } + + PrintAndLog("--sector number:%02x ", sectorNo); + + flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC; + for (i = 0; i < 4; i++) { + if (i == 1) flags = 0; + if (i == 3) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD; + + res = mfCGetBlock(sectorNo * 4 + i, memBlock, flags); + if (res) { + PrintAndLog("Can't read block. %02x error=%d", sectorNo * 4 + i, res); + return 1; + } + + PrintAndLog("block %02x data:%s", sectorNo * 4 + i, sprint_hex(memBlock, 16)); + } + return 0; +} + +int CmdHF14AMfCSave(const char *Cmd) { + + FILE * f; + char filename[20]; + char * fnameptr = filename; + uint8_t fillFromEmulator = 0; + uint8_t buf[64]; + int i, j, len, flags; + + memset(filename, 0, sizeof(filename)); + memset(buf, 0, sizeof(buf)); + + if (param_getchar(Cmd, 0) == 'h') { + PrintAndLog("It saves `magic Chinese` card dump into the file `filename.eml` or `cardID.eml`"); + PrintAndLog("or into emulator memory (option `e`)"); + PrintAndLog("Usage: hf mf esave [file name w/o `.eml`][e]"); + PrintAndLog(" sample: hf mf esave "); + PrintAndLog(" hf mf esave filename"); + PrintAndLog(" hf mf esave e \n"); + return 0; + } + + char ctmp = param_getchar(Cmd, 0); + if (ctmp == 'e' || ctmp == 'E') fillFromEmulator = 1; + + if (fillFromEmulator) { + // put into emulator + flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC; + for (i = 0; i < 16 * 4; i++) { + if (i == 1) flags = 0; + if (i == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD; + + if (mfCGetBlock(i, buf, flags)) { + PrintAndLog("Cant get block: %d", i); + break; + } + + if (mfEmlSetMem(buf, i, 1)) { + PrintAndLog("Cant set emul block: %d", i); + return 3; + } + } + return 0; + } else { + len = strlen(Cmd); + if (len > 14) len = 14; + + if (len < 1) { + // get filename + if (mfCGetBlock(0, buf, CSETBLOCK_SINGLE_OPER)) { + PrintAndLog("Cant get block: %d", 0); + return 1; + } + for (j = 0; j < 7; j++, fnameptr += 2) + sprintf(fnameptr, "%02x", buf[j]); + } else { + memcpy(filename, Cmd, len); + fnameptr += len; + } + + sprintf(fnameptr, ".eml"); + + // open file + f = fopen(filename, "w+"); + + // put hex + flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC; + for (i = 0; i < 16 * 4; i++) { + if (i == 1) flags = 0; + if (i == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD; + + if (mfCGetBlock(i, buf, flags)) { + PrintAndLog("Cant get block: %d", i); + break; + } + for (j = 0; j < 16; j++) + fprintf(f, "%02x", buf[j]); + fprintf(f,"\n"); + } + fclose(f); + + PrintAndLog("Saved to file: %s", filename); + + return 0; + } +} + static command_t CommandTable[] = { - {"help", CmdHelp, 1, "This help"}, - {"dbg", CmdHF14AMfDbg, 0, "Set default debug mode"}, + {"help", CmdHelp, 1, "This help"}, + {"dbg", CmdHF14AMfDbg, 0, "Set default debug mode"}, {"rdbl", CmdHF14AMfRdBl, 0, "Read MIFARE classic block"}, {"rdsc", CmdHF14AMfRdSc, 0, "Read MIFARE classic sector"}, {"dump", CmdHF14AMfDump, 0, "Dump MIFARE classic tag to binary file"}, - {"restore", CmdHF14AMfRestore, 0, "Restore MIFARE classic binary file to BLANK tag"}, + {"restore", CmdHF14AMfRestore, 0, "Restore MIFARE classic binary file to BLANK tag"}, {"wrbl", CmdHF14AMfWrBl, 0, "Write MIFARE classic block"}, - {"chk", CmdHF14AMfChk, 0, "Test block keys"}, + {"chk", CmdHF14AMfChk, 0, "Test block keys"}, {"mifare", CmdHF14AMifare, 0, "Read parity error messages. param - "}, {"nested", CmdHF14AMfNested, 0, "Test nested authentication"}, - {"sim", CmdHF14AMf1kSim, 0, "Simulate MIFARE card"}, - {"eclr", CmdHF14AMfEClear, 0, "Clear simulator memory block"}, + {"sim", CmdHF14AMf1kSim, 0, "Simulate MIFARE card"}, + {"eclr", CmdHF14AMfEClear, 0, "Clear simulator memory block"}, {"eget", CmdHF14AMfEGet, 0, "Get simulator memory block"}, {"eset", CmdHF14AMfESet, 0, "Set simulator memory block"}, {"eload", CmdHF14AMfELoad, 0, "Load from file emul dump"}, @@ -1409,7 +1564,10 @@ static command_t CommandTable[] = {"ekeyprn", CmdHF14AMfEKeyPrn, 0, "Print keys from simulator memory"}, {"csetuid", CmdHF14AMfCSetUID, 0, "Set UID for magic Chinese card"}, {"csetblk", CmdHF14AMfCSetBlk, 0, "Write block into magic Chinese card"}, + {"cgetblk", CmdHF14AMfCGetBlk, 0, "Read block from magic Chinese card"}, + {"cgetsc", CmdHF14AMfCGetSc, 0, "Read sector from magic Chinese card"}, {"cload", CmdHF14AMfCLoad, 0, "Load dump into magic Chinese card"}, + {"csave", CmdHF14AMfCSave, 0, "Save dump from magic Chinese card into file or emulator"}, {NULL, NULL, 0, NULL} }; diff --git a/client/mifarehost.c b/client/mifarehost.c index 399f494a..ef70fe97 100644 --- a/client/mifarehost.c +++ b/client/mifarehost.c @@ -198,9 +198,9 @@ int mfCheckKeys (uint8_t blockNo, uint8_t keyType, uint8_t keycnt, uint8_t * key } int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount) { - UsbCommand c = {CMD_MIFARE_EML_MEMGET, {blockNum, blocksCount, 0}}; + UsbCommand c = {CMD_MIFARE_EML_MEMGET, {blockNum, blocksCount, 0}}; - SendCommand(&c); + SendCommand(&c); UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500); @@ -210,9 +210,9 @@ int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount) { } int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) { - UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}}; + UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}}; memcpy(c.d.asBytes, data, blocksCount * 16); - SendCommand(&c); + SendCommand(&c); return 0; } @@ -228,9 +228,9 @@ int mfCSetUID(uint8_t *uid, uint8_t *oldUID, int wantWipe) { int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, int wantWipe, uint8_t params) { uint8_t isOK = 0; - UsbCommand c = {CMD_MIFARE_EML_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}}; + UsbCommand c = {CMD_MIFARE_EML_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}}; memcpy(c.d.asBytes, data, 16); - SendCommand(&c); + SendCommand(&c); UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500); @@ -244,3 +244,22 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, int wantWipe, uint } return 0; } + +int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) { + uint8_t isOK = 0; + + UsbCommand c = {CMD_MIFARE_EML_CGETBLOCK, {params, 0, blockNo}}; + SendCommand(&c); + + UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500); + + if (resp != NULL) { + isOK = resp->arg[0] & 0xff; + memcpy(data, resp->d.asBytes, 16); + if (!isOK) return 2; + } else { + PrintAndLog("Command execute timeout"); + return 1; + } + return 0; +} diff --git a/client/mifarehost.h b/client/mifarehost.h index 1d6e0bec..8241ab70 100644 --- a/client/mifarehost.h +++ b/client/mifarehost.h @@ -54,4 +54,4 @@ int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount); int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount); int mfCSetUID(uint8_t *uid, uint8_t *oldUID, int wantWipe); int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, int wantWipe, uint8_t params); - +int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params); diff --git a/include/usb_cmd.h b/include/usb_cmd.h index a0c6d8a8..4cd6da74 100644 --- a/include/usb_cmd.h +++ b/include/usb_cmd.h @@ -115,6 +115,7 @@ typedef struct { #define CMD_MIFARE_EML_MEMGET 0x0603 #define CMD_MIFARE_EML_CARDLOAD 0x0604 #define CMD_MIFARE_EML_CSETBLOCK 0x0605 +#define CMD_MIFARE_EML_CGETBLOCK 0x0606 #define CMD_SIMULATE_MIFARE_CARD 0x0610 -- 2.39.2