X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/2fdc489bb4f62dbea718d59aa5ddfdbf1624bb79..5b9fb6f454174c97b80b01811a669737496273ce:/client/cmdhfmf.c
diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index 9b43f411..6ddf845a 100644
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -9,18 +9,18 @@
//-----------------------------------------------------------------------------
#include "cmdhfmf.h"
-#include "cmdhfmfhard.h"
-#include "nonce2key/nonce2key.h"
static int CmdHelp(const char *Cmd);
int usage_hf14_mifare(void){
- PrintAndLog("Usage: hf mf mifare [h] <block number>");
+ PrintAndLog("Usage: hf mf mifare [h] <block number> <A|B>");
PrintAndLog("options:");
- PrintAndLog(" h this help");
- PrintAndLog(" <block number> (Optional) target other key A than block 0.");
+ PrintAndLog(" h this help");
+ PrintAndLog(" <block number> (Optional) target other block");
+ PrintAndLog(" <A|B> (optional) target key type");
PrintAndLog("samples:");
PrintAndLog(" hf mf mifare");
PrintAndLog(" hf mf mifare 16");
+ PrintAndLog(" hf mf mifare 16 B");
return 0;
}
int usage_hf14_mf1ksim(void){
@@ -125,6 +125,21 @@ int usage_hf14_chk(void){
PrintAndLog(" hf mf chk *1 ? d -- target all blocks, all keys, 1K, write to file");
return 0;
}
+int usage_hf14_keybrute(void){
+ PrintAndLog("J_Run's 2nd phase of multiple sector nested authentication key recovery");
+ PrintAndLog("You have a known 4 last bytes of a key recovered with mf_nonce_brute tool.");
+ PrintAndLog("First 2 bytes of key will be bruteforced");
+ PrintAndLog("");
+ PrintAndLog("Usage: hf mf keybrute [h] <block number> <A|B> <key>");
+ PrintAndLog("options:");
+ PrintAndLog(" h this help");
+ PrintAndLog(" <block number> target block number");
+ PrintAndLog(" <A|B> target key type");
+ PrintAndLog(" <key> candidate key from mf_nonce_brute tool");
+ PrintAndLog("samples:");
+ PrintAndLog(" hf mf keybrute 1 A 000011223344");
+ return 0;
+}
int CmdHF14AMifare(const char *Cmd) {
uint32_t uid = 0;
@@ -132,13 +147,18 @@ int CmdHF14AMifare(const char *Cmd) {
uint64_t par_list = 0, ks_list = 0, r_key = 0;
int16_t isOK = 0;
int tmpchar;
- uint8_t blockNo = 0;
+ uint8_t blockNo = 0, keytype = MIFARE_AUTH_KEYA;
char cmdp = param_getchar(Cmd, 0);
if ( cmdp == 'H' || cmdp == 'h') return usage_hf14_mifare();
- blockNo = param_get8(Cmd, 0);
- UsbCommand c = {CMD_READER_MIFARE, {true, blockNo, 0}};
+ blockNo = param_get8(Cmd, 0);
+
+ cmdp = param_getchar(Cmd, 1);
+ if (cmdp == 'B' || cmdp == 'b')
+ keytype = MIFARE_AUTH_KEYB;
+
+ UsbCommand c = {CMD_READER_MIFARE, {true, blockNo, keytype}};
// message
printf("-------------------------------------------------------------------------\n");
@@ -193,9 +213,16 @@ start:
}
printf("\n");
- // par == 0
- if (isOK == -1 && par_list == 0) {
- if (!nonce2key_ex(uid, nt, nr, ks_list, &r_key) ){
+ // par == 0, and -4
+ if (isOK == -4 && par_list == 0) {
+ // this special attack when parities is zero, uses checkkeys. Which now with block/keytype option also needs.
+ // but it uses 0|1 instead of 0x60|0x61...
+ if (nonce2key_ex(blockNo, keytype - 0x60 , uid, nt, nr, ks_list, &r_key) ){
+ PrintAndLog("Key not found (lfsr_common_prefix list is null).");
+ PrintAndLog("Failing is expected to happen in 25%% of all cases. Trying again with a different reader nonce...");
+ c.arg[0] = false;
+ goto start;
+ } else {
PrintAndLog("Found valid key: %012"llx" \n", r_key);
goto END;
}
@@ -212,6 +239,16 @@ start:
c.arg[0] = false;
goto start;
} else {
+
+ // nonce2key found a candidate key. Lets verify it.
+ uint8_t keyblock[] = {0,0,0,0,0,0};
+ num_to_bytes(r_key, 6, keyblock);
+ uint64_t key64 = 0;
+ int res = mfCheckKeys(blockNo, keytype - 0x60 , false, 1, keyblock, &key64);
+ if ( res > 0 ) {
+ PrintAndLog("Candidate Key found (%012"llx") - Test authentication failed. Starting over darkside attack", r_key);
+ goto start;
+ }
PrintAndLog("Found valid key: %012"llx" \n", r_key);
}
END:
@@ -1013,7 +1050,7 @@ int CmdHF14AMfNestedHard(const char *Cmd) {
slow ? "Yes" : "No",
tests);
- int16_t isOK = mfnestedhard(blockNo, keyType, key, trgBlockNo, trgKeyType, know_target_key?trgkey:NULL, nonce_file_read, nonce_file_write, slow, tests);
+ int16_t isOK = mfnestedhard(blockNo, keyType, key, trgBlockNo, trgKeyType, know_target_key ? trgkey : NULL, nonce_file_read, nonce_file_write, slow, tests);
if (isOK) {
switch (isOK) {
@@ -1315,45 +1352,121 @@ int CmdHF14AMfChk(const char *Cmd) {
PrintAndLog("");
return 0;
}
+#define ATTACK_KEY_COUNT 8
+sector *k_sector = NULL;
+uint8_t k_sectorsCount = 16;
+void readerAttack(nonces_t data[], bool setEmulatorMem) {
-int CmdHF14AMf1kSim(const char *Cmd) {
- uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
- uint8_t exitAfterNReads = 0;
- uint8_t flags = (FLAG_UID_IN_EMUL | FLAG_4B_UID_IN_DATA);
- int uidlen = 0;
- uint8_t pnr = 0;
- uint8_t cmdp = param_getchar(Cmd, 0);
-
- if (cmdp == 'h' || cmdp == 'H') return usage_hf14_mf1ksim();
-
- cmdp = param_getchar(Cmd, pnr);
- if (cmdp == 'u' || cmdp == 'U') {
- param_gethex_ex(Cmd, pnr+1, uid, &uidlen);
- switch(uidlen){
- case 20: flags = FLAG_10B_UID_IN_DATA; break;
- case 14: flags = FLAG_7B_UID_IN_DATA; break;
- case 8: flags = FLAG_4B_UID_IN_DATA; break;
- default: return usage_hf14_mf1ksim();
- }
- pnr +=2;
- }
+ // initialize storage for found keys
+ if (k_sector == NULL)
+ k_sector = calloc(k_sectorsCount, sizeof(sector));
+ if (k_sector == NULL)
+ return;
- cmdp = param_getchar(Cmd, pnr);
- if (cmdp == 'n' || cmdp == 'N') {
- exitAfterNReads = param_get8(Cmd, pnr+1);
- pnr += 2;
+ uint64_t key = 0;
+
+ // empty e_sector
+ for(int i = 0; i < k_sectorsCount; ++i){
+ k_sector[i].Key[0] = 0xffffffffffff;
+ k_sector[i].Key[1] = 0xffffffffffff;
+ k_sector[i].foundKey[0] = FALSE;
+ k_sector[i].foundKey[1] = FALSE;
}
- cmdp = param_getchar(Cmd, pnr);
- if (cmdp == 'i' || cmdp == 'I' ) {
- flags |= FLAG_INTERACTIVE;
- pnr++;
+ printf("enter reader attack\n");
+ for (uint8_t i = 0; i < ATTACK_KEY_COUNT; ++i) {
+ if (data[i].ar2 > 0) {
+
+ if (tryMfk32(data[i], &key)) {
+ PrintAndLog("Found Key%s for sector %02d: [%012"llx"]"
+ , (data[i].keytype) ? "B" : "A"
+ , data[i].sector
+ , key
+ );
+
+ k_sector[i].Key[data[i].keytype] = key;
+ k_sector[i].foundKey[data[i].keytype] = TRUE;
+
+ //set emulator memory for keys
+ if (setEmulatorMem) {
+ uint8_t memBlock[16] = {0,0,0,0,0,0, 0xff, 0x0F, 0x80, 0x69, 0,0,0,0,0,0};
+ num_to_bytes( k_sector[i].Key[0], 6, memBlock);
+ num_to_bytes( k_sector[i].Key[1], 6, memBlock+10);
+ mfEmlSetMem( memBlock, i*4 + 3, 1);
+ PrintAndLog("Setting Emulator Memory Block %02d: [%s]"
+ , i*4 + 3
+ , sprint_hex( memBlock, sizeof(memBlock))
+ );
+ }
+ break;
+ }
+ //moebius attack
+ // if (tryMfk32_moebius(data[i+ATTACK_KEY_COUNT], &key)) {
+ // PrintAndLog("M-Found Key%s for sector %02d: [%012"llx"]"
+ // ,(data[i+ATTACK_KEY_COUNT].keytype) ? "B" : "A"
+ // , data[i+ATTACK_KEY_COUNT].sector
+ // , key
+ // );
+ // }
+ }
}
+}
+
+int CmdHF14AMf1kSim(const char *Cmd) {
- cmdp = param_getchar(Cmd, pnr);
- if (cmdp == 'x' || cmdp == 'X') {
- flags |= FLAG_NR_AR_ATTACK;
+ uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+ uint8_t exitAfterNReads = 0;
+ uint8_t flags = (FLAG_UID_IN_EMUL | FLAG_4B_UID_IN_DATA);
+ int uidlen = 0;
+ bool setEmulatorMem = false;
+ uint8_t cmdp = 0;
+ bool errors = false;
+
+ while(param_getchar(Cmd, cmdp) != 0x00) {
+ switch(param_getchar(Cmd, cmdp)) {
+ case 'e':
+ case 'E':
+ setEmulatorMem = true;
+ cmdp++;
+ break;
+ case 'h':
+ case 'H':
+ return usage_hf14_mf1ksim();
+ case 'i':
+ case 'I':
+ flags |= FLAG_INTERACTIVE;
+ cmdp++;
+ break;
+ case 'n':
+ case 'N':
+ exitAfterNReads = param_get8(Cmd, cmdp+1);
+ cmdp += 2;
+ break;
+ case 'u':
+ case 'U':
+ param_gethex_ex(Cmd, cmdp+1, uid, &uidlen);
+ switch(uidlen) {
+ case 20: flags = FLAG_10B_UID_IN_DATA; break;
+ case 14: flags = FLAG_7B_UID_IN_DATA; break;
+ case 8: flags = FLAG_4B_UID_IN_DATA; break;
+ default: return usage_hf14_mf1ksim();
+ }
+ cmdp +=2;
+ break;
+ case 'x':
+ case 'X':
+ flags |= FLAG_NR_AR_ATTACK;
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) break;
}
+ //Validations
+ if(errors) return usage_hf14_mf1ksim();
PrintAndLog(" uid:%s, numreads:%d, flags:%d (0x%02x) "
, (uidlen == 0 ) ? "N/A" : sprint_hex(uid, uidlen>>1)
@@ -1367,24 +1480,24 @@ int CmdHF14AMf1kSim(const char *Cmd) {
SendCommand(&c);
if(flags & FLAG_INTERACTIVE) {
- uint8_t data[32];
- uint64_t key;
- UsbCommand resp;
PrintAndLog("Press pm3-button or send another cmd to abort simulation");
+
+ nonces_t data[ATTACK_KEY_COUNT*2];
+ UsbCommand resp;
+
while( !ukbhit() ){
if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) continue;
if ( !(flags & FLAG_NR_AR_ATTACK) ) break;
if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break;
- memset(data, 0x00, sizeof(data));
- int len = (resp.arg[1] > sizeof(data)) ? sizeof(data) : resp.arg[1];
-
- memcpy(data, resp.d.asBytes, len);
- key = 0;
- bool found = tryMfk32(data, &key);
- found ^= tryMfk32_moebius(data, &key);
- if ( found ) break;
+ memcpy( data, resp.d.asBytes, sizeof(data) );
+ readerAttack(data, setEmulatorMem);
+ }
+
+ if (k_sector != NULL) {
+ printKeyTable(k_sectorsCount, k_sector );
+ free(k_sector);
}
}
return 0;
@@ -1548,7 +1661,7 @@ int CmdHF14AMfSniff(const char *Cmd){
int CmdHF14AMfDbg(const char *Cmd) {
char ctmp = param_getchar(Cmd, 0);
- if (strlen(Cmd) < 1 || ctmp == 'h'|| ctmp == 'H') return usage_hf14_dbg();
+ if (strlen(Cmd) < 1 || ctmp == 'h' || ctmp == 'H') return usage_hf14_dbg();
uint8_t dbgMode = param_get8ex(Cmd, 0, 0, 10);
if (dbgMode > 4) return usage_hf14_dbg();
@@ -1558,6 +1671,43 @@ int CmdHF14AMfDbg(const char *Cmd) {
return 0;
}
+int CmdHF14AMfKeyBrute(const char *Cmd) {
+
+ uint8_t blockNo = 0, keytype = 0;
+ uint8_t key[6] = {0, 0, 0, 0, 0, 0};
+ uint64_t foundkey = 0;
+
+ char cmdp = param_getchar(Cmd, 0);
+ if ( cmdp == 'H' || cmdp == 'h') return usage_hf14_keybrute();
+
+ // block number
+ blockNo = param_get8(Cmd, 0);
+
+ // keytype
+ cmdp = param_getchar(Cmd, 1);
+ if (cmdp == 'B' || cmdp == 'b') keytype = 1;
+
+ // key
+ if (param_gethex(Cmd, 2, key, 12)) return usage_hf14_keybrute();
+
+ clock_t t1 = clock();
+ time_t start, end;
+ time(&start);
+
+ if (mfKeyBrute( blockNo, keytype, key, &foundkey))
+ PrintAndLog("Found valid key: %012"llx" \n", foundkey);
+ else
+ PrintAndLog("Key not found");
+
+ t1 = clock() - t1;
+ time(&end);
+ unsigned long elapsed_time = difftime(end, start);
+ if ( t1 > 0 )
+ PrintAndLog("\nTime in keybrute: %.0f ticks %u seconds\n", (float)t1, elapsed_time);
+
+ return 0;
+}
+
void printKeyTable( uint8_t sectorscnt, sector *e_sector ){
PrintAndLog("|---|----------------|---|----------------|---|");
PrintAndLog("|sec|key A |res|key B |res|");
@@ -1572,7 +1722,6 @@ void printKeyTable( uint8_t sectorscnt, sector *e_sector ){
}
// EMULATOR COMMANDS
-
int CmdHF14AMfEGet(const char *Cmd)
{
uint8_t blockNo = 0;
@@ -1586,7 +1735,7 @@ int CmdHF14AMfEGet(const char *Cmd)
blockNo = param_get8(Cmd, 0);
- PrintAndLog(" ");
+ PrintAndLog("");
if (!mfEmlGetMem(data, blockNo, 1)) {
PrintAndLog("data[%3d]:%s", blockNo, sprint_hex(data, 16));
} else {
@@ -2299,10 +2448,11 @@ static command_t CommandTable[] = {
{"dump", CmdHF14AMfDump, 0, "Dump MIFARE classic tag to binary file"},
{"restore", CmdHF14AMfRestore, 0, "Restore MIFARE classic binary file to BLANK tag"},
{"wrbl", CmdHF14AMfWrBl, 0, "Write MIFARE classic block"},
- {"chk", CmdHF14AMfChk, 0, "Test block keys"},
- {"mifare", CmdHF14AMifare, 0, "Read parity error messages."},
- {"nested", CmdHF14AMfNested, 0, "Test nested authentication"},
+ {"chk", CmdHF14AMfChk, 0, "Check keys"},
+ {"mifare", CmdHF14AMifare, 0, "Darkside attack. read parity error messages."},
+ {"nested", CmdHF14AMfNested, 0, "Nested attack. Test nested authentication"},
{"hardnested", CmdHF14AMfNestedHard, 0, "Nested attack for hardened Mifare cards"},
+ {"keybrute", CmdHF14AMfKeyBrute, 0, "J_Run's 2nd phase of multiple sector nested authentication key recovery"},
{"sniff", CmdHF14AMfSniff, 0, "Sniff card-reader communication"},
{"sim", CmdHF14AMf1kSim, 0, "Simulate MIFARE card"},
{"eclr", CmdHF14AMfEClear, 0, "Clear simulator memory block"},