}
int usage_lf_hid_brute(void){
PrintAndLog("Enables bruteforce of HID readers with specified facility code.");
- PrintAndLog("Different formatlength is supported");
- PrintAndLog("This is a incremental attack against reader.");
+ PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
+ PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
PrintAndLog("");
- PrintAndLog("Usage: lf hid brute [h] <format length> <facility code>");
+ PrintAndLog("Usage: lf hid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
PrintAndLog("Options :");
- PrintAndLog(" h - This help");
- PrintAndLog(" <format length> - 26|33|34|35|37|40|44|84");
- PrintAndLog(" <facility code> - 8-bit value HID facility code");
+ PrintAndLog(" h : This help");
+ PrintAndLog(" a <format> : 26|33|34|35|37|40|44|84");
+ PrintAndLog(" f <facility-code> : 8-bit value HID facility code");
+ PrintAndLog(" c <cardnumber> : (optional) cardnumber to start with, max 65535");
+ PrintAndLog(" d <delay> : delay betweens attempts in ms. Default 1000ms");
PrintAndLog("");
- PrintAndLog("Sample : lf hid brute 26 224");
+ PrintAndLog("Samples:");
+ PrintAndLog(" lf hid brute a 26 f 224");
+ PrintAndLog(" lf hid brute a 26 f 21 d 2000");
+ PrintAndLog(" lf hid brute a 26 f 21 c 200 d 2000");
return 0;
}
+static int sendPing(void){
+ UsbCommand ping = {CMD_PING, {1, 2, 3}};
+ SendCommand(&ping);
+ SendCommand(&ping);
+ SendCommand(&ping);
+ clearCommandBuffer();
+ UsbCommand resp;
+ if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
+ return 0;
+ return 1;
+}
+static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs){
+
+ PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
+
+ calcWiegand( fmtlen, fc, cn, bs);
+
+ uint64_t arg1 = bytebits_to_byte(bs,32);
+ uint64_t arg2 = bytebits_to_byte(bs+32,32);
+ UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}};
+ clearCommandBuffer();
+ SendCommand(&c);
+ msleep(delay);
+ sendPing();
+ return TRUE;
+}
+
int CmdHIDDemodFSK(const char *Cmd) {
int findone = ( Cmd[0] == '1' ) ? 1 : 0;
UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
// *hi = (cardno >> 31);
// }
-static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
+void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
// uint32_t hi = 0, lo = 0;
// uint32_t cn32 = (cardno & 0xFFFFFFFF);
uint32_t oem = 0, fc = 0;
uint64_t cardnum = 0;
- uint32_t blocks[2], wiegand[2];
+ uint32_t blocks[2] = {0,0};
+ uint32_t wiegand[2] = {0,0};
uint8_t bits[96];
uint8_t *bs = bits;
int CmdHIDBrute(const char *Cmd){
- bool error = TRUE;
- uint8_t fc = 0, fmtlen = 0;
-
+ bool errors = false;
+ uint32_t fc = 0, cn = 0, delay = 1000;
+ uint8_t fmtlen = 0;
uint8_t bits[96];
uint8_t *bs = bits;
memset(bs, 0, sizeof(bits));
-
- UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}};
-
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 2 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_hid_brute();
-
- fmtlen = param_get8(Cmd, 0);
- uint8_t ftms[] = {26,33,34,35,37};
- for ( uint8_t i = 0; i < sizeof(ftms); i++){
- if ( ftms[i] == fmtlen ) {
- error = FALSE;
+ uint8_t cmdp = 0;
+
+ while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
+ switch(param_getchar(Cmd, cmdp)) {
+ case 'h':
+ case 'H':
+ return usage_lf_hid_brute();
+ case 'f':
+ case 'F':
+ fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
+ if ( !fc )
+ errors = true;
+ cmdp += 2;
+ break;
+ case 'd':
+ case 'D':
+ // delay between attemps, defaults to 1000ms.
+ delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
+ cmdp += 2;
+ break;
+ case 'c':
+ case 'C':
+ cn = param_get32ex(Cmd, cmdp+1, 0, 10);
+ // truncate cardnumber.
+ cn &= 0xFFFF;
+ cmdp += 2;
+ break;
+ case 'a':
+ case 'A':
+ fmtlen = param_get8(Cmd, cmdp+1);
+ cmdp += 2;
+ bool is_ftm_ok = FALSE;
+ uint8_t ftms[] = {26,33,34,35,37};
+ for ( uint8_t i = 0; i < sizeof(ftms); i++){
+ if ( ftms[i] == fmtlen ) {
+ is_ftm_ok = TRUE;
+ }
+ }
+ // negated
+ errors = !is_ftm_ok;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
}
}
-
- if ( error ) return usage_lf_hid_brute();
-
- fc = param_get8(Cmd, 1);
- if ( fc == 0) return usage_lf_hid_brute();
+ if ( fc == 0 ) errors = true;
+ if ( errors ) return usage_lf_hid_brute();
PrintAndLog("Brute-forcing HID reader");
PrintAndLog("Press pm3-button to abort simulation or run another command");
-
- for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){
+
+ uint16_t up = cn;
+ uint16_t down = cn;
+
+ for (;;){
+
+ if ( offline ) {
+ printf("Device offline\n");
+ return 2;
+ }
+
if (ukbhit()) {
PrintAndLog("aborted via keyboard!");
- c.cmd = CMD_PING;
- c.arg[0] = 0x00;
- c.arg[1] = 0x00;
- c.arg[2] = 0x00;
- clearCommandBuffer();
- SendCommand(&c);
- return 1;
+ return sendPing();
}
-
- calcWiegand( fmtlen, fc, cn, bs);
-
- c.arg[0] = bytebits_to_byte(bs,32);
- c.arg[1] = bytebits_to_byte(bs+32,32);
- clearCommandBuffer();
- SendCommand(&c);
- PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
- // pause
- sleep(1);
+ // Do one up
+ if ( up < 0xFFFF )
+ if ( !sendTry(fmtlen, fc, up++, delay, bs)) return 1;
+
+ // Do one down (if cardnumber is given)
+ if ( cn > 1 )
+ if ( down > 1 )
+ if ( !sendTry(fmtlen, fc, --down, delay, bs)) return 1;
}
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
- {"fskdemod",CmdHIDDemodFSK, 0, "[1] Realtime HID FSK demodulator (option '1' for one tag only)"},
- {"sim", CmdHIDSim, 0, "<ID> -- HID tag simulator"},
- {"clone", CmdHIDClone, 0, "<ID> [L] -- Clone HID to T55x7"},
- {"wiegand", CmdHIDWiegand, 0, "<OEM> <facility code> <card number> -- convert facility code/card number to Wiegand code"},
- {"brute", CmdHIDBrute, 0, "<format length> <facility code> -- brute force card number"},
+ {"fskdemod",CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
+ {"sim", CmdHIDSim, 0, "HID tag simulator"},
+ {"clone", CmdHIDClone, 0, "Clone HID to T55x7"},
+ {"wiegand", CmdHIDWiegand, 0, "Convert facility code/card number to Wiegand code"},
+ {"brute", CmdHIDBrute, 0, "Bruteforce card number against reader"},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / blobdiff