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https://github.com/Proxmark/proxmark3.git
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Merge pull request #343 from Fl0-0/master
LF EM410x bruteforcing function by simulating EM410x tags (1 UID/s)
This commit is contained in:
Iceman
GitHub
commit
fe8157d59e
3 changed files with 220 additions and 81 deletions
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@ -10,7 +10,7 @@ This project uses the changelog in accordance with [keepchangelog](http://keepac
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### Fixed
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### Added
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- Added lf em 410xbrute, LF EM410x reader bruteforce attack by simulating UIDs from a file (Fl0-0)
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## [3.0.1][2017-06-08]
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@ -23,10 +23,12 @@
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#include "cmdmain.h"
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#include "lfdemod.h"
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#include "protocols.h"
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#include "util_posix.h"
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uint64_t g_em410xId=0;
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static int CmdHelp(const char *Cmd);
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void ConstructEM410xEmulGraph(const char *uid,const uint8_t clock);
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int CmdEMdemodASK(const char *Cmd)
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{
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@ -82,12 +84,12 @@ void printEM410x(uint32_t hi, uint64_t id)
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(id2lo & 0x000000000f)
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);
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uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
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PrintAndLog("}\nOther : %05" PRIu64 "_%03" PRIu64 "_%08" PRIu64 "",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
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PrintAndLog("}\nOther : %05" PRIu64 "_%03" PRIu64 "_%08" PRIu64 "",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
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PrintAndLog("Pattern Paxton : %" PRIu64 " [0x%" PRIX64 "]", paxton, paxton);
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uint32_t p1id = (id & 0xFFFFFF);
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uint8_t arr[32] = {0x00};
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int i =0;
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int i =0;
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int j = 23;
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for (; i < 24; ++i, --j ){
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arr[i] = (p1id >> i) & 1;
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@ -99,12 +101,12 @@ void printEM410x(uint32_t hi, uint64_t id)
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p1 |= arr[22] << 23;
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p1 |= arr[21] << 20;
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p1 |= arr[20] << 22;
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p1 |= arr[19] << 18;
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p1 |= arr[18] << 16;
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p1 |= arr[17] << 19;
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p1 |= arr[16] << 17;
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p1 |= arr[15] << 13;
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p1 |= arr[14] << 15;
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p1 |= arr[13] << 12;
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@ -216,11 +218,54 @@ int usage_lf_em410x_sim(void) {
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return 0;
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}
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// Construct the graph for emulating an EM410X tag
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void ConstructEM410xEmulGraph(const char *uid,const uint8_t clock)
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{
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int i, n, j, binary[4], parity[4];
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/* clear our graph */
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ClearGraph(0);
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/* write 9 start bits */
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for (i = 0; i < 9; i++)
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AppendGraph(0, clock, 1);
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/* for each hex char */
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parity[0] = parity[1] = parity[2] = parity[3] = 0;
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for (i = 0; i < 10; i++){
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/* read each hex char */
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sscanf(&uid[i], "%1x", &n);
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for (j = 3; j >= 0; j--, n/= 2)
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binary[j] = n % 2;
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/* append each bit */
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AppendGraph(0, clock, binary[0]);
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AppendGraph(0, clock, binary[1]);
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AppendGraph(0, clock, binary[2]);
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AppendGraph(0, clock, binary[3]);
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/* append parity bit */
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AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]);
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/* keep track of column parity */
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parity[0] ^= binary[0];
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parity[1] ^= binary[1];
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parity[2] ^= binary[2];
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parity[3] ^= binary[3];
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}
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/* parity columns */
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AppendGraph(0, clock, parity[0]);
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AppendGraph(0, clock, parity[1]);
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AppendGraph(0, clock, parity[2]);
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AppendGraph(0, clock, parity[3]);
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/* stop bit */
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AppendGraph(1, clock, 0);
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}
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// emulate an EM410X tag
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int CmdEM410xSim(const char *Cmd)
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{
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int i, n, j, binary[4], parity[4];
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char cmdp = param_getchar(Cmd, 0);
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uint8_t uid[5] = {0x00};
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@ -235,61 +280,153 @@ int CmdEM410xSim(const char *Cmd)
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param_getdec(Cmd,1, &clock);
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PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock);
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PrintAndLog("Press pm3-button to about simulation");
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PrintAndLog("Press pm3-button to abort simulation");
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/* clear our graph */
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ClearGraph(0);
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/* write 9 start bits */
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for (i = 0; i < 9; i++)
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AppendGraph(0, clock, 1);
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/* for each hex char */
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parity[0] = parity[1] = parity[2] = parity[3] = 0;
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for (i = 0; i < 10; i++)
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{
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/* read each hex char */
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sscanf(&Cmd[i], "%1x", &n);
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for (j = 3; j >= 0; j--, n/= 2)
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binary[j] = n % 2;
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/* append each bit */
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AppendGraph(0, clock, binary[0]);
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AppendGraph(0, clock, binary[1]);
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AppendGraph(0, clock, binary[2]);
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AppendGraph(0, clock, binary[3]);
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/* append parity bit */
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AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]);
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/* keep track of column parity */
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parity[0] ^= binary[0];
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parity[1] ^= binary[1];
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parity[2] ^= binary[2];
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parity[3] ^= binary[3];
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}
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/* parity columns */
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AppendGraph(0, clock, parity[0]);
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AppendGraph(0, clock, parity[1]);
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AppendGraph(0, clock, parity[2]);
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AppendGraph(0, clock, parity[3]);
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/* stop bit */
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AppendGraph(1, clock, 0);
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ConstructEM410xEmulGraph(Cmd, clock);
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CmdLFSim("0"); //240 start_gap.
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return 0;
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}
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int usage_lf_em410x_brute(void) {
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PrintAndLog("Bruteforcing by emulating EM410x tag");
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PrintAndLog("");
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PrintAndLog("Usage: lf em 410xbrute [h] ids.txt [d 2000] [clock]");
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PrintAndLog("Options:");
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PrintAndLog(" h - this help");
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PrintAndLog(" ids.txt - file with UIDs in HEX format, one per line");
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PrintAndLog(" d (2000) - pause delay in milliseconds between UIDs simulation, default 1000 ms (optional)");
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PrintAndLog(" c (32) - clock (32|64), default 64 (optional)");
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PrintAndLog("samples:");
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PrintAndLog(" lf em 410xbrute ids.txt");
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PrintAndLog(" lf em 410xbrute ids.txt c 32");
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PrintAndLog(" lf em 410xbrute ids.txt d 3000");
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PrintAndLog(" lf em 410xbrute ids.txt d 3000 32");
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return 0;
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}
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int CmdEM410xBrute(const char *Cmd)
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{
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char filename[FILE_PATH_SIZE]={0};
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FILE *f = NULL;
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char buf[11];
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uint32_t uidcnt = 0;
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uint8_t stUidBlock = 20;
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uint8_t *uidBlock = NULL, *p = NULL;
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int ch;
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uint8_t uid[5] = {0x00};
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/* clock is 64 in EM410x tags */
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uint8_t clock = 64;
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/* default pause time: 1 second */
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uint32_t delay = 1000;
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char cmdp = param_getchar(Cmd, 0);
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if (cmdp == 'h' || cmdp == 'H') return usage_lf_em410x_brute();
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cmdp = param_getchar(Cmd, 1);
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if (cmdp == 'd' || cmdp == 'D') {
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delay = param_get32ex(Cmd, 2, 1000, 10);
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param_getdec(Cmd, 4, &clock);
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} else if (cmdp == 'c' || cmdp == 'C') {
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param_getdec(Cmd, 2, &clock);
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delay = param_get32ex(Cmd, 4, 1000, 10);
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}
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param_getstr(Cmd, 0, filename);
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uidBlock = calloc(stUidBlock, 5);
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if (uidBlock == NULL) return 1;
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if (strlen(filename) > 0) {
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if ((f = fopen(filename, "r")) == NULL) {
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PrintAndLog("Error: Could not open UIDs file [%s]",filename);
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free(uidBlock);
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return 1;
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}
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} else {
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PrintAndLog("Error: Please specify a filename");
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free(uidBlock);
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return 1;
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}
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while( fgets(buf, sizeof(buf), f) ) {
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if (strlen(buf) < 10 || buf[9] == '\n') continue;
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while (fgetc(f) != '\n' && !feof(f)); //goto next line
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//The line start with # is comment, skip
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if( buf[0]=='#' ) continue;
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if (param_gethex(buf, 0, uid, 10)) {
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PrintAndLog("UIDs must include 10 HEX symbols");
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free(uidBlock);
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fclose(f);
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return 1;
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}
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buf[10] = 0;
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if ( stUidBlock - uidcnt < 2) {
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p = realloc(uidBlock, 5*(stUidBlock+=10));
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if (!p) {
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PrintAndLog("Cannot allocate memory for UIDs");
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free(uidBlock);
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fclose(f);
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return 1;
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}
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uidBlock = p;
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}
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memset(uidBlock + 5 * uidcnt, 0, 5);
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num_to_bytes(strtoll(buf, NULL, 16), 5, uidBlock + 5*uidcnt);
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uidcnt++;
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memset(buf, 0, sizeof(buf));
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}
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fclose(f);
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if (uidcnt == 0) {
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PrintAndLog("No UIDs found in file");
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free(uidBlock);
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return 1;
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}
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PrintAndLog("Loaded %d UIDs from %s, pause delay: %d ms", uidcnt, filename, delay);
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// loop
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for(uint32_t c = 0; c < uidcnt; ++c ) {
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char testuid[11];
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testuid[10] = 0;
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if (ukbhit()) {
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ch = getchar();
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(void)ch;
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printf("\nAborted via keyboard!\n");
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free(uidBlock);
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return 0;
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}
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sprintf(testuid, "%010lX", bytes_to_num(uidBlock + 5*c, 5));
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PrintAndLog("Bruteforce %d / %d: simulating UID %s, clock %d", c + 1, uidcnt, testuid, clock);
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ConstructEM410xEmulGraph(testuid, clock);
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CmdLFSim("0"); //240 start_gap.
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msleep(delay);
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}
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free(uidBlock);
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return 0;
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}
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/* Function is equivalent of lf read + data samples + em410xread
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* looped until an EM410x tag is detected
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*
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* looped until an EM410x tag is detected
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*
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* Why is CmdSamples("16000")?
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* TBD: Auto-grow sample size based on detected sample rate. IE: If the
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* rate gets lower, then grow the number of samples
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* Changed by martin, 4000 x 4 = 16000,
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* Changed by martin, 4000 x 4 = 16000,
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* see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235
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*
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* EDIT -- capture enough to get 2 complete preambles at the slowest data rate known to be used (rf/64) (64*64*2+9 = 8201) marshmellow
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@ -458,7 +595,7 @@ uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool
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int EM4x50Read(const char *Cmd, bool verbose)
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{
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uint8_t fndClk[] = {8,16,32,40,50,64,128};
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int clk = 0;
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int clk = 0;
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int invert = 0;
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int tol = 0;
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int i, j, startblock, skip, block, start, end, low, high, minClk;
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@ -473,7 +610,7 @@ int EM4x50Read(const char *Cmd, bool verbose)
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// get user entry if any
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sscanf(Cmd, "%i %i", &clk, &invert);
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// first get high and low values
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for (i = 0; i < GraphTraceLen; i++) {
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if (GraphBuffer[i] > high)
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@ -514,7 +651,7 @@ int EM4x50Read(const char *Cmd, bool verbose)
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if (!clk) {
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for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) {
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tol = fndClk[clkCnt]/8;
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if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) {
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if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) {
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clk=fndClk[clkCnt];
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break;
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}
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@ -539,7 +676,7 @@ int EM4x50Read(const char *Cmd, bool verbose)
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// skip over the remainder of LW
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skip += tmpbuff[i+1] + tmpbuff[i+2] + clk;
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if (tmpbuff[i+3]>clk)
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if (tmpbuff[i+3]>clk)
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phaseoff = tmpbuff[i+3]-clk;
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else
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phaseoff = 0;
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@ -570,9 +707,9 @@ int EM4x50Read(const char *Cmd, bool verbose)
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} else if (start < 0) return 0;
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start = skip;
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snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47);
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// save GraphBuffer - to restore it later
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// save GraphBuffer - to restore it later
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save_restoreGB(GRAPH_SAVE);
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// get rid of leading crap
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// get rid of leading crap
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snprintf(tmp, sizeof(tmp), "%i", skip);
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CmdLtrim(tmp);
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bool pTest;
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@ -583,7 +720,7 @@ int EM4x50Read(const char *Cmd, bool verbose)
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while (block < 6) {
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if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block);
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skip = phaseoff;
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// look for LW before start of next block
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for ( ; i < j - 4 ; ++i) {
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skip += tmpbuff[i];
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@ -605,7 +742,7 @@ int EM4x50Read(const char *Cmd, bool verbose)
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//set DemodBufferLen to just one block
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DemodBufferLen = skip/clk;
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//test parities
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pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0);
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pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0);
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pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0);
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AllPTest &= pTest;
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//get output
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@ -624,7 +761,7 @@ int EM4x50Read(const char *Cmd, bool verbose)
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PrintAndLog("Partial data - no end found!");
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PrintAndLog("Try again with more samples.");
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}
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PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);
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PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);
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end = block;
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for (block=0; block < end; block++){
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PrintAndLog("Block %d: %08x",block,Code[block]);
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@ -666,7 +803,7 @@ int usage_lf_em_read(void) {
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// download samples from device and copy them to the Graphbuffer
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bool downloadSamplesEM() {
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// 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples)
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uint8_t got[6000];
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uint8_t got[6000];
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GetFromBigBuf(got, sizeof(got), 0);
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if ( !WaitForResponseTimeout(CMD_ACK, NULL, 4000) ) {
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PrintAndLog("command execution time out");
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@ -698,7 +835,7 @@ bool EM4x05testDemodReadData(uint32_t *word, bool readCmd) {
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return false;
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}
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// test for even parity bits and remove them. (leave out the end row of parities so 36 bits)
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if ( removeParity(DemodBuffer, startIdx + sizeof(preamble),9,0,36) == 0 ) {
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if ( removeParity(DemodBuffer, startIdx + sizeof(preamble),9,0,36) == 0 ) {
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if (g_debugMode) PrintAndLog("DEBUG: Error - Parity not detected");
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return false;
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}
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@ -711,7 +848,7 @@ bool EM4x05testDemodReadData(uint32_t *word, bool readCmd) {
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return true;
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}
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// FSK, PSK, ASK/MANCHESTER, ASK/BIPHASE, ASK/DIPHASE
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// FSK, PSK, ASK/MANCHESTER, ASK/BIPHASE, ASK/DIPHASE
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// should cover 90% of known used configs
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// the rest will need to be manually demoded for now...
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int demodEM4x05resp(uint32_t *word, bool readCmd) {
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@ -778,7 +915,7 @@ int demodEM4x05resp(uint32_t *word, bool readCmd) {
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//try biphase
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ans = ASKbiphaseDemod("0 0 1", false);
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if (!ans) {
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if (!ans) {
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if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/biphase Demod failed, ans: %d", ans);
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} else {
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if (EM4x05testDemodReadData(word, readCmd)) {
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@ -788,7 +925,7 @@ int demodEM4x05resp(uint32_t *word, bool readCmd) {
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//try diphase (differential biphase or inverted)
|
||||
ans = ASKbiphaseDemod("0 1 1", false);
|
||||
if (!ans) {
|
||||
if (!ans) {
|
||||
if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/biphase Demod failed, ans: %d", ans);
|
||||
} else {
|
||||
if (EM4x05testDemodReadData(word, readCmd)) {
|
||||
|
|
@ -803,7 +940,7 @@ int EM4x05ReadWord_ext(uint8_t addr, uint32_t pwd, bool usePwd, uint32_t *wordDa
|
|||
UsbCommand c = {CMD_EM4X_READ_WORD, {addr, pwd, usePwd}};
|
||||
clearCommandBuffer();
|
||||
SendCommand(&c);
|
||||
UsbCommand resp;
|
||||
UsbCommand resp;
|
||||
if (!WaitForResponseTimeout(CMD_ACK, &resp, 2500)){
|
||||
PrintAndLog("Command timed out");
|
||||
return -1;
|
||||
|
|
@ -841,7 +978,7 @@ int CmdEM4x05ReadWord(const char *Cmd) {
|
|||
addr = param_get8ex(Cmd, 0, 50, 10);
|
||||
// for now use default input of 1 as invalid (unlikely 1 will be a valid password...)
|
||||
pwd = param_get32ex(Cmd, 1, 1, 16);
|
||||
|
||||
|
||||
if ( (addr > 15) ) {
|
||||
PrintAndLog("Address must be between 0 and 15");
|
||||
return 1;
|
||||
|
|
@ -878,7 +1015,7 @@ int CmdEM4x05dump(const char *Cmd) {
|
|||
|
||||
// for now use default input of 1 as invalid (unlikely 1 will be a valid password...)
|
||||
pwd = param_get32ex(Cmd, 0, 1, 16);
|
||||
|
||||
|
||||
if ( pwd != 1 ) {
|
||||
usePwd = true;
|
||||
}
|
||||
|
|
@ -906,7 +1043,7 @@ int usage_lf_em_write(void) {
|
|||
PrintAndLog("Options:");
|
||||
PrintAndLog(" h - this help");
|
||||
PrintAndLog(" a <address> - memory address to write to. (0-15)");
|
||||
PrintAndLog(" d <data> - data to write (hex)");
|
||||
PrintAndLog(" d <data> - data to write (hex)");
|
||||
PrintAndLog(" p <pwd> - password (hex) (optional)");
|
||||
PrintAndLog(" s - swap the data bit order before write");
|
||||
PrintAndLog(" i - invert the data bits before write");
|
||||
|
|
@ -1082,10 +1219,10 @@ void printEM4x05config(uint32_t wordData) {
|
|||
PrintAndLog(" PSK CF: %u | %s", PSKcf, cf);
|
||||
PrintAndLog(" Delay: %u | %s", delay, cdelay);
|
||||
PrintAndLog(" LastWordR: %02u | Address of last word for default read - meaning %u blocks are output", LWR, numblks);
|
||||
PrintAndLog(" ReadLogin: %u | Read Login is %s", readLogin, readLogin ? "Required" : "Not Required");
|
||||
PrintAndLog(" ReadHKL: %u | Read Housekeeping Words Login is %s", readHKL, readHKL ? "Required" : "Not Required");
|
||||
PrintAndLog("WriteLogin: %u | Write Login is %s", writeLogin, writeLogin ? "Required" : "Not Required");
|
||||
PrintAndLog(" WriteHKL: %u | Write Housekeeping Words Login is %s", writeHKL, writeHKL ? "Required" : "Not Required");
|
||||
PrintAndLog(" ReadLogin: %u | Read Login is %s", readLogin, readLogin ? "Required" : "Not Required");
|
||||
PrintAndLog(" ReadHKL: %u | Read Housekeeping Words Login is %s", readHKL, readHKL ? "Required" : "Not Required");
|
||||
PrintAndLog("WriteLogin: %u | Write Login is %s", writeLogin, writeLogin ? "Required" : "Not Required");
|
||||
PrintAndLog(" WriteHKL: %u | Write Housekeeping Words Login is %s", writeHKL, writeHKL ? "Required" : "Not Required");
|
||||
PrintAndLog(" R.A.W.: %u | Read After Write is %s", raw, raw ? "On" : "Off");
|
||||
PrintAndLog(" Disable: %u | Disable Command is %s", disable, disable ? "Accepted" : "Not Accepted");
|
||||
PrintAndLog(" R.T.F.: %u | Reader Talk First is %s", rtf, rtf ? "Enabled" : "Disabled");
|
||||
|
|
@ -1142,20 +1279,20 @@ int CmdEM4x05info(const char *Cmd) {
|
|||
|
||||
// for now use default input of 1 as invalid (unlikely 1 will be a valid password...)
|
||||
pwd = param_get32ex(Cmd, 0, 1, 16);
|
||||
|
||||
|
||||
if ( pwd != 1 ) {
|
||||
usePwd = true;
|
||||
}
|
||||
|
||||
// read word 0 (chip info)
|
||||
// block 0 can be read even without a password.
|
||||
if ( !EM4x05Block0Test(&wordData) )
|
||||
if ( !EM4x05Block0Test(&wordData) )
|
||||
return -1;
|
||||
|
||||
|
||||
uint8_t chipType = (wordData >> 1) & 0xF;
|
||||
uint8_t cap = (wordData >> 5) & 3;
|
||||
uint16_t custCode = (wordData >> 9) & 0x3FF;
|
||||
|
||||
|
||||
// read word 1 (serial #) doesn't need pwd
|
||||
wordData = 0;
|
||||
if (EM4x05ReadWord_ext(1, 0, false, &wordData) != 1) {
|
||||
|
|
@ -1163,7 +1300,7 @@ int CmdEM4x05info(const char *Cmd) {
|
|||
}
|
||||
printEM4x05info(chipType, cap, custCode, wordData);
|
||||
|
||||
// read word 4 (config block)
|
||||
// read word 4 (config block)
|
||||
// needs password if one is set
|
||||
wordData = 0;
|
||||
if ( EM4x05ReadWord_ext(4, pwd, usePwd, &wordData) != 1 ) {
|
||||
|
|
@ -1199,9 +1336,10 @@ int CmdEM4x05info(const char *Cmd) {
|
|||
static command_t CommandTable[] =
|
||||
{
|
||||
{"help", CmdHelp, 1, "This help"},
|
||||
{"410xread", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
|
||||
{"410xread", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
|
||||
{"410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
|
||||
{"410xsim", CmdEM410xSim, 0, "<UID> [clock rate] -- Simulate EM410x tag"},
|
||||
{"410xbrute", CmdEM410xBrute, 0, "ids.txt [d (delay in ms)] [c (clock rate)] -- Bruteforcing by simulating EM410x tags (1 UID/s)"},
|
||||
{"410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
|
||||
{"410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
|
||||
{"410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
|
||||
|
|
|
|||
|
|
@ -21,6 +21,7 @@ extern int CmdAskEM410xDemod(const char *Cmd);
|
|||
extern int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo );
|
||||
extern int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose);
|
||||
extern int CmdEM410xSim(const char *Cmd);
|
||||
extern int CmdEM410xBrute(const char *Cmd);
|
||||
extern int CmdEM410xWatch(const char *Cmd);
|
||||
extern int CmdEM410xWatchnSpoof(const char *Cmd);
|
||||
extern int CmdEM410xWrite(const char *Cmd);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue