X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/d3a22c7dfa87bf5e21d228849a602194be4a0895..385f398740895f512abc90ea5a00a9be82bf115b:/client/cmdhficlass.c?ds=sidebyside diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c index 38713220..03b39021 100644 --- a/client/cmdhficlass.c +++ b/client/cmdhficlass.c @@ -20,7 +20,7 @@ #include "ui.h" #include "cmdparser.h" #include "cmdhficlass.h" -#include "../include/common.h" +#include "common.h" #include "util.h" #include "cmdmain.h" #include "loclass/des.h" @@ -34,53 +34,17 @@ static int CmdHelp(const char *Cmd); int xorbits_8(uint8_t val) { - uint8_t res = val ^ (val >> 1); //1st pass - res = res ^ (res >> 1); // 2nd pass - res = res ^ (res >> 2); // 3rd pass - res = res ^ (res >> 4); // 4th pass - return res & 1; -} - -#define ICLASS_CMD_ACTALL 0x0A -#define ICLASS_CMD_IDENTIFY 0x0C -#define ICLASS_CMD_READ 0x0C - -#define ICLASS_CMD_SELECT 0x81 -#define ICLASS_CMD_PAGESEL 0x84 -#define ICLASS_CMD_READCHECK 0x88 -#define ICLASS_CMD_CHECK 0x05 -#define ICLASS_CMD_SOF 0x0F -#define ICLASS_CMD_HALT 0x00 - - -void explain(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) -{ - - if(cmdsize > 1 && cmd[0] == ICLASS_CMD_READ) - { - snprintf(exp,size,"READ(%d)",cmd[1]); - return; - } - - switch(cmd[0]) - { - case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break; - case ICLASS_CMD_IDENTIFY: snprintf(exp,size,"IDENTIFY"); break; - case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break; - case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL"); break; - case ICLASS_CMD_READCHECK: snprintf(exp,size,"READCHECK"); break; - case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break; - case ICLASS_CMD_SOF: snprintf(exp,size,"SOF"); break; - case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break; - default: snprintf(exp,size,"?"); break; - } - return; + uint8_t res = val ^ (val >> 1); //1st pass + res = res ^ (res >> 1); // 2nd pass + res = res ^ (res >> 2); // 3rd pass + res = res ^ (res >> 4); // 4th pass + return res & 1; } int CmdHFiClassList(const char *Cmd) { PrintAndLog("Deprecated command, use 'hf list iclass' instead"); - return 0; + return 0; } int CmdHFiClassSnoop(const char *Cmd) @@ -140,24 +104,24 @@ int CmdHFiClassSim(const char *Cmd) 0x0c,0x90,0x32,0xf3,0x5d,0xff,0x12,0xe0 }; */ - uint8_t csns[8*NUM_CSNS] = { - 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0, - 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 }; - - memcpy(c.d.asBytes, csns, 8*NUM_CSNS); + uint8_t csns[8*NUM_CSNS] = { + 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0, + 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 }; + + memcpy(c.d.asBytes, csns, 8*NUM_CSNS); SendCommand(&c); if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) { @@ -166,7 +130,7 @@ int CmdHFiClassSim(const char *Cmd) } uint8_t num_mac_responses = resp.arg[1]; - PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses, NUM_CSNS); + PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses,NUM_CSNS); size_t datalen = NUM_CSNS*24; /* @@ -245,7 +209,7 @@ int CmdHFiClassReader_Replay(const char *Cmd) if (strlen(Cmd)<1) { PrintAndLog("Usage: hf iclass replay "); PrintAndLog(" sample: hf iclass replay 00112233"); - return 0; + return 0; } if (param_gethex(Cmd, 0, MAC, 8)) { @@ -307,87 +271,111 @@ int CmdHFiClassReader_Dump(const char *Cmd) uint8_t key_sel[8] = {0}; uint8_t key_sel_p[8] = { 0 }; - //HACK -- Below is for testing without access to a tag - uint8_t fake_dummy_test = false; - if(fake_dummy_test) - { - uint8_t xdata[16] = {0x01,0x02,0x03,0x04,0xF7,0xFF,0x12,0xE0, //CSN from http://www.proxmark.org/forum/viewtopic.php?pid=11230#p11230 - 0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}; // Just a random CC. Would be good to add a real testcase here - memcpy(resp.d.asBytes,xdata, 16); - resp.arg[0] = 2; - } - - //End hack - - UsbCommand c = {CMD_READER_ICLASS, {0}}; c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_GET_CC; - if(!fake_dummy_test) SendCommand(&c); - if (fake_dummy_test || WaitForResponseTimeout(CMD_ACK,&resp,4500)) { - uint8_t isOK = resp.arg[0] & 0xff; - uint8_t * data = resp.d.asBytes; + if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) + { + PrintAndLog("Command execute timeout"); + return 0; + } - memcpy(CSN,data,8); - memcpy(CCNR,data+8,8); + uint8_t isOK = resp.arg[0] & 0xff; + uint8_t * data = resp.d.asBytes; - PrintAndLog("isOk:%02x", isOK); + memcpy(CSN,data,8); + memcpy(CCNR,data+8,8); - if(isOK > 0) - { - PrintAndLog("CSN: %s",sprint_hex(CSN,8)); - } - if(isOK > 1) - { - if(elite) - { - //Get the key index (hash1) - uint8_t key_index[8] = {0}; - - hash1(CSN, key_index); - printvar("hash1", key_index,8); - for(i = 0; i < 8 ; i++) - key_sel[i] = keytable[key_index[i]] & 0xFF; - PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:"); - printvar("k_sel", key_sel,8); - //Permute from iclass format to standard format - permutekey_rev(key_sel,key_sel_p); - used_key = key_sel_p; - }else{ - //Perhaps this should also be permuted to std format? - // Something like the code below? I have no std system - // to test this with /Martin + PrintAndLog("isOk:%02x", isOK); - //uint8_t key_sel_p[8] = { 0 }; - //permutekey_rev(KEY,key_sel_p); - //used_key = key_sel_p; + if(isOK > 0) + { + PrintAndLog("CSN: %s",sprint_hex(CSN,8)); + } + if(isOK <= 1){ + PrintAndLog("Failed to obtain CC! Aborting"); + return 0; + } + //Status 2 or higher - used_key = KEY; + if(elite) + { + //Get the key index (hash1) + uint8_t key_index[8] = {0}; + + hash1(CSN, key_index); + printvar("hash1", key_index,8); + for(i = 0; i < 8 ; i++) + key_sel[i] = keytable[key_index[i]] & 0xFF; + PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:"); + printvar("k_sel", key_sel,8); + //Permute from iclass format to standard format + permutekey_rev(key_sel,key_sel_p); + used_key = key_sel_p; + }else{ + used_key = KEY; + } - } + PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:"); + printvar("Used key",used_key,8); + diversifyKey(CSN,used_key, div_key); + PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):"); + printvar("Div key", div_key, 8); + printvar("CC_NR:",CCNR,12); + doMAC(CCNR,12,div_key, MAC); + printvar("MAC", MAC, 4); + + uint8_t iclass_data[32000] = {0}; + uint8_t iclass_datalen = 0; + uint8_t iclass_blocksFailed = 0;//Set to 1 if dump was incomplete + + UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}}; + memcpy(d.d.asBytes, MAC, 4); + clearCommandBuffer(); + SendCommand(&d); + PrintAndLog("Waiting for device to dump data. Press button on device and key on keyboard to abort..."); + while (true) { + printf("."); + if (ukbhit()) { + getchar(); + printf("\naborted via keyboard!\n"); + break; + } + if(WaitForResponseTimeout(CMD_ACK,&resp,4500)) + { + uint64_t dataLength = resp.arg[0]; + iclass_blocksFailed |= resp.arg[1]; + + if(dataLength > 0) + { + memcpy(iclass_data, resp.d.asBytes,dataLength); + iclass_datalen += dataLength; + }else + {//Last transfer, datalength 0 means the dump is finished + PrintAndLog("Dumped %d bytes of data from tag. ", iclass_datalen); + if(iclass_blocksFailed) + { + PrintAndLog("OBS! Some blocks failed to be dumped correctly!"); + } + if(iclass_datalen > 0) + { + char filename[100] = {0}; + //create a preferred filename + snprintf(filename, 100,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x", + CSN[0],CSN[1],CSN[2],CSN[3], + CSN[4],CSN[5],CSN[6],CSN[7]); + saveFile(filename,"bin",iclass_data, iclass_datalen ); + + } + //Aaaand we're finished + return 0; + } + } + } - PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:"); - printvar("Used key",used_key,8); - diversifyKey(CSN,used_key, div_key); - PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):"); - printvar("Div key", div_key, 8); - printvar("CC_NR:",CCNR,12); - doMAC(CCNR,12,div_key, MAC); - printvar("MAC", MAC, 4); - - UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}}; - memcpy(d.d.asBytes, MAC, 4); - if(!fake_dummy_test) SendCommand(&d); - - }else{ - PrintAndLog("Failed to obtain CC! Aborting"); - } - } else { - PrintAndLog("Command execute timeout"); - } return 0; } @@ -469,19 +457,64 @@ int CmdHFiClass_iso14443A_write(const char *Cmd) } return 0; } +int CmdHFiClass_loclass(const char *Cmd) +{ + char opt = param_getchar(Cmd, 0); + + if (strlen(Cmd)<1 || opt == 'h') { + PrintAndLog("Usage: hf iclass loclass [options]"); + PrintAndLog("Options:"); + PrintAndLog("h Show this help"); + PrintAndLog("t Perform self-test"); + PrintAndLog("f Bruteforce iclass dumpfile"); + PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of"); + PrintAndLog(" malicious CSNs, and their protocol responses"); + PrintAndLog(" The the binary format of the file is expected to be as follows: "); + PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); + PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); + PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); + PrintAndLog(" ... totalling N*24 bytes"); + return 0; + } + char fileName[255] = {0}; + if(opt == 'f') + { + if(param_getstr(Cmd, 1, fileName) > 0) + { + return bruteforceFileNoKeys(fileName); + }else + { + PrintAndLog("You must specify a filename"); + } + } + else if(opt == 't') + { + int errors = testCipherUtils(); + errors += testMAC(); + errors += doKeyTests(0); + errors += testElite(); + if(errors) + { + prnlog("OBS! There were errors!!!"); + } + return errors; + } + return 0; +} static command_t CommandTable[] = { - {"help", CmdHelp, 1, "This help"}, - {"list", CmdHFiClassList, 0, "[Deprecated] List iClass history"}, - {"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"}, - {"sim", CmdHFiClassSim, 0, "Simulate iClass tag"}, - {"reader",CmdHFiClassReader, 0, "Read an iClass tag"}, - {"replay", CmdHFiClassReader_Replay, 0, "Read an iClass tag via Reply Attack"}, - {"dump", CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"}, - {"write", CmdHFiClass_iso14443A_write, 0, "Authenticate and Write iClass block"}, - {NULL, NULL, 0, NULL} + {"help", CmdHelp, 1, "This help"}, + {"list", CmdHFiClassList, 0, "[Deprecated] List iClass history"}, + {"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"}, + {"sim", CmdHFiClassSim, 0, "Simulate iClass tag"}, + {"reader",CmdHFiClassReader, 0, "Read an iClass tag"}, + {"replay",CmdHFiClassReader_Replay, 0, "Read an iClass tag via Reply Attack"}, + {"dump", CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"}, + {"write", CmdHFiClass_iso14443A_write, 0, "Authenticate and Write iClass block"}, + {"loclass", CmdHFiClass_loclass, 1, "Use loclass to perform bruteforce of reader attack dump"}, + {NULL, NULL, 0, NULL} }; int CmdHFiClass(const char *Cmd) @@ -493,5 +526,5 @@ int CmdHFiClass(const char *Cmd) int CmdHelp(const char *Cmd) { CmdsHelp(CommandTable); - return 0; + return 0; }