From 89603cbddc4f9ceb44fe7ef41fec4fcdd989a2d5 Mon Sep 17 00:00:00 2001 From: iceman1001 Date: Fri, 26 Aug 2016 17:18:48 +0200 Subject: [PATCH] FIX: minor adjustments to 'lf awid bruteforce' FIX: making the 'lf hid bruteforce' to work the same way as the awid one.. --- client/cmdlfawid.c | 15 ++--- client/cmdlfhid.c | 163 +++++++++++++++++++++++++++++++-------------- client/cmdlfhid.h | 1 + 3 files changed, 119 insertions(+), 60 deletions(-) diff --git a/client/cmdlfawid.c b/client/cmdlfawid.c index bddd94af..fefc6e0a 100644 --- a/client/cmdlfawid.c +++ b/client/cmdlfawid.c @@ -88,13 +88,11 @@ static int sendPing(void){ UsbCommand ping = {CMD_PING, {1, 2, 3}}; SendCommand(&ping); SendCommand(&ping); - SendCommand(&ping); - + SendCommand(&ping); clearCommandBuffer(); UsbCommand resp; - if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) { + if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) return 0; - } return 1; } @@ -112,7 +110,6 @@ static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, ui memcpy(c.d.asBytes, bs, bs_len); clearCommandBuffer(); SendCommand(&c); - msleep(delay); sendPing(); return TRUE; @@ -361,8 +358,6 @@ int CmdAWIDBrute(const char *Cmd){ break; } - // start - PrintAndLog("Bruteforceing AWID %d Reader", fmtlen); PrintAndLog("Press pm3-button to abort simulation or press key"); @@ -375,8 +370,10 @@ int CmdAWIDBrute(const char *Cmd){ printf("Device offline\n"); return 2; } - - if (ukbhit()) return sendPing(); + if (ukbhit()) { + PrintAndLog("aborted via keyboard!"); + return sendPing(); + } // Do one up if ( up < 0xFFFF ) diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c index fd0f6eba..16209660 100644 --- a/client/cmdlfhid.c +++ b/client/cmdlfhid.c @@ -51,19 +51,51 @@ int usage_lf_hid_clone(void){ } 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] "); + PrintAndLog("Usage: lf hid brute [h] a f c d "); PrintAndLog("Options :"); - PrintAndLog(" h - This help"); - PrintAndLog(" - 26|33|34|35|37|40|44|84"); - PrintAndLog(" - 8-bit value HID facility code"); + PrintAndLog(" h : This help"); + PrintAndLog(" a : 26|33|34|35|37|40|44|84"); + PrintAndLog(" f : 8-bit value HID facility code"); + PrintAndLog(" c : (optional) cardnumber to start with, max 65535"); + PrintAndLog(" d : 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}}; @@ -273,7 +305,7 @@ void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){ // *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); @@ -359,67 +391,96 @@ int CmdHIDWiegand(const char *Cmd) { 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; + uint8_t ftms[] = {26,33,34,35,37}; + for ( uint8_t i = 0; i < sizeof(ftms); i++){ + if ( ftms[i] == fmtlen ) { + errors = FALSE; + } + } + 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, " -- HID tag simulator"}, - {"clone", CmdHIDClone, 0, " [L] -- Clone HID to T55x7"}, - {"wiegand", CmdHIDWiegand, 0, " -- convert facility code/card number to Wiegand code"}, - {"brute", CmdHIDBrute, 0, " -- 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} }; diff --git a/client/cmdlfhid.h b/client/cmdlfhid.h index 68aea6cc..57603b2f 100644 --- a/client/cmdlfhid.h +++ b/client/cmdlfhid.h @@ -36,4 +36,5 @@ int usage_lf_hid_clone(void); int usage_lf_hid_brute(void); void calc26(uint16_t fc, uint32_t cardno, uint8_t *out); +void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits); #endif -- 2.39.2