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https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-12-29 11:52:59 +08:00
ADD: "lf hid bruteforce" for a simple bruteforce attact against a HID reader. *work in progress*
This commit is contained in:
iceman1001
parent
d04b71c168
commit
3a532acfe1
2 changed files with 142 additions and 65 deletions
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@ -17,23 +17,35 @@
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#include "cmdlfhid.h"
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#include "util.h"
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#include "cmdmain.h"
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#include "sleep.h"
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static int CmdHelp(const char *Cmd);
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int usage_hid_wiegand(){
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PrintAndLog("Usage: lf hid wiegand [h] [formatlenght] [oem] [FacilityCode] [cardnumber]");
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int usage_lf_hid_wiegand(void){
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PrintAndLog("Usage: lf hid wiegand [h] [oem] [FacilityCode] [cardnumber]");
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PrintAndLog("This command converts FC/Cardnum to wiegand code");
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PrintAndLog("Options:");
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PrintAndLog(" h - This help");
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PrintAndLog(" formatlen - Format length, 26|34|35|37|44|84");
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PrintAndLog(" oem - Oem number");
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PrintAndLog(" facilitynum - Facility number");
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PrintAndLog(" cardnum - Card number");
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PrintAndLog("Examples:");
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PrintAndLog(" lf hid wiegand 26 0 101 2001");
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PrintAndLog(" lf hid wiegand 0 101 2001");
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return 0;
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}
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int usage_lf_hid_brute(void){
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PrintAndLog("Enables bruteforce of HID readers with specified facility-code.");
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PrintAndLog("Different formatlength is supported");
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PrintAndLog("This is a incremental attack against reader.");
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PrintAndLog("");
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PrintAndLog("Usage: lf hid brute <formatlength> <Facility-Code>");
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PrintAndLog("Options :");
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PrintAndLog(" <formatlength> : 26|33|34|35|37|40|44|84 ");
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PrintAndLog(" <Facility-Code> : 8-bit value HID facility code");
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PrintAndLog("");
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PrintAndLog("Sample : lf hid brute 26 224");
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return 0;
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}
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/*
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int CmdHIDDemod(const char *Cmd)
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{
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@ -54,8 +66,7 @@ int CmdHIDDemod(const char *Cmd)
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return 0;
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}
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*/
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int CmdHIDDemodFSK(const char *Cmd)
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{
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int CmdHIDDemodFSK(const char *Cmd) {
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int findone = ( Cmd[0] == '1' ) ? 1 : 0;
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UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
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clearCommandBuffer();
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@ -63,8 +74,7 @@ int CmdHIDDemodFSK(const char *Cmd)
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return 0;
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}
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int CmdHIDSim(const char *Cmd)
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{
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int CmdHIDSim(const char *Cmd) {
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unsigned int hi = 0, lo = 0;
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int n = 0, i = 0;
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@ -82,8 +92,7 @@ int CmdHIDSim(const char *Cmd)
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return 0;
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}
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int CmdHIDClone(const char *Cmd)
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{
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int CmdHIDClone(const char *Cmd) {
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unsigned int hi2 = 0, hi = 0, lo = 0;
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int n = 0, i = 0;
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UsbCommand c;
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@ -134,6 +143,9 @@ static void getParity26(uint32_t *hi, uint32_t *lo){
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for (i = 12;i >= 1;i--)
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result ^= (*lo >> i) & 1;
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*lo |= !result;
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}
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static void getParity33(uint32_t *hi, uint32_t *lo){
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}
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static void getParity34(uint32_t *hi, uint32_t *lo){
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uint32_t result = 0;
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@ -198,6 +210,9 @@ static void getParity37H(uint32_t *hi, uint32_t *lo){
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static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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*lo = ((cardno & 0xFFFF) << 1) | ((fc & 0xFF) << 17) | (1 << 26);
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*hi = (1 << 5);
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}
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static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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}
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static void calc34(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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// put card number first bit 1 .. 20 //
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@ -209,87 +224,148 @@ static void calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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*lo = ((cardno & 0xFFFFF) << 1) | fc << 21;
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*hi = (1 << 5) | ((fc >> 11) & 1);
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}
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static void calc37S(uint16_t sc, uint32_t cn, uint32_t *hi, uint32_t *lo){
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// SC 2 - 17 - 16 bit
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// CN 18 - 36 - 19 bit
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static void calc37S(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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// FC 2 - 17 - 16 bit
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// cardno 18 - 36 - 19 bit
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// Even P1 1 - 19
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// Odd P37 19 - 36
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sc = sc & 0xFFFF;
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*lo = ( (sc << 20) | (cn & 0x7FFFF) << 1);
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*hi = (sc >> 12);
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fc = fc & 0xFFFF;
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*lo = ((fc << 20) | (cardno & 0x7FFFF) << 1);
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*hi = (fc >> 12);
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}
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static void calc37H(uint64_t cn, uint32_t *hi, uint32_t *lo){
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static void calc37H(uint64_t cardno, uint32_t *hi, uint32_t *lo){
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// SC NONE
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// CN 1-35 34 bits
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// cardno 1-35 34 bits
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// Even Parity 0th bit 1-18
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// Odd Parity 36th bit 19-35
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cn = (cn & 0x00000003FFFFFFFF);
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*lo = (cn << 1);
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*hi = (cn >> 31);
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cardno = (cardno & 0x00000003FFFFFFFF);
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*lo = (cardno << 1);
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*hi = (cardno >> 31);
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}
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static void calc40(uint64_t cn, uint32_t *hi, uint32_t *lo){
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cn = (cn & 0xFFFFFFFFFF);
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*lo = ((cn & 0xFFFFFFFF) << 1 );
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*hi = (cn >> 31);
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static void calc40(uint64_t cardno, uint32_t *hi, uint32_t *lo){
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cardno = (cardno & 0xFFFFFFFFFF);
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*lo = ((cardno & 0xFFFFFFFF) << 1 );
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*hi = (cardno >> 31);
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}
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int CmdHIDWiegand(const char *Cmd)
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{
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uint32_t oem;
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uint32_t fmtlen = 0;
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uint32_t fc, lo = 0, hi = 0;
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uint64_t cn = 0;
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uint32_t cardnum = 0;
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//uint32_t temp, p
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uint8_t ctmp = param_getchar(Cmd, 0);
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if ( strlen(Cmd) < 0 || strlen(Cmd) < 4 || ctmp == 'H' || ctmp == 'h' ) return usage_hid_wiegand();
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fmtlen = param_get8(Cmd, 0);
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oem = param_get8(Cmd, 1);
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fc = param_get32ex(Cmd, 2, 0, 10);
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cn = param_get64ex(Cmd, 3, 0, 10);
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static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint32_t *hi, uint32_t *lo){
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uint32_t cn = (cardno & 0xFFFFFFFF);
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switch ( fmtlen ) {
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case 26 : {
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cardnum = (cn & 0xFFFFFFFF);
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calc26(fc, cardnum, &hi, &lo);
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getParity26(&hi, &lo);
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case 26 : {
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calc26(fc, cn, hi, lo);
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getParity26(hi, lo);
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break;
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}
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case 33 : {
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calc33(fc, cn, hi, lo);
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getParity33(hi, lo);
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break;
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}
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case 34 : {
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cardnum = (cn & 0xFFFFFFFF);
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calc34(fc, cardnum, &hi, &lo);
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getParity34(&hi, &lo);
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calc34(fc, cn, hi, lo);
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getParity34(hi, lo);
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break;
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}
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case 35 : {
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cardnum = (cn & 0xFFFFFFFF);
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calc35(fc, cardnum, &hi, &lo);
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getParity35(&hi, &lo);
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calc35(fc, cn, hi, lo);
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getParity35(hi, lo);
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break;
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}
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case 37 : {
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cardnum = (cn & 0xFFFFFFFF);
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calc37S(fc, cardnum, &hi, &lo);
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getParity37S(&hi, &lo);
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calc37S(fc, cn, hi, lo);
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getParity37S(hi, lo);
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break;
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}
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case 38 : {
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cardnum = (cn & 0xFFFFFFFF);
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calc37H(cardnum, &hi, &lo);
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getParity37H(&hi, &lo);
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break;
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}
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case 40 : {
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calc40(cn, &hi, &lo);
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calc37H(cn, hi, lo);
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getParity37H(hi, lo);
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break;
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}
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case 40 : calc40(cardno, hi, lo); break;
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case 44 : { break; }
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case 84 : { break; }
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}
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PrintAndLog("HID %d bit | FC: %d CN: %lld | Wiegand Code: %08X%08X", fmtlen, fc, cn, hi, lo);
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}
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int CmdHIDWiegand(const char *Cmd) {
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uint32_t oem;
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uint32_t fc, lo = 0, hi = 0;
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uint64_t cardnum = 0;
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uint8_t ctmp = param_getchar(Cmd, 0);
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if ( strlen(Cmd) < 0 || strlen(Cmd) < 3 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_wiegand();
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oem = param_get8(Cmd, 0);
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fc = param_get32ex(Cmd, 1, 0, 10);
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cardnum = param_get64ex(Cmd, 2, 0, 10);
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uint8_t ftmlen[] = {26,33,34,35,37,38,40};
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for (uint8_t i = 0; i < sizeof(ftmlen); i++){
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calcWiegand( ftmlen[i], fc, cardnum, &hi, &lo);
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PrintAndLog("HID %d bit | FC: %d CN: %llu | Wiegand Code: %08X%08X", ftmlen[i], fc, cardnum, hi, lo);
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}
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return 0;
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}
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int CmdHIDBrute(const char *Cmd){
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bool error = FALSE;
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uint8_t fc = 0, fmtlen = 0;
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uint32_t hi = 0, lo = 0;
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UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}};
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char cmdp = param_getchar(Cmd, 0);
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if (strlen(Cmd) > 2 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_hid_brute();
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fmtlen = param_get8(Cmd, 0);
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switch(fmtlen){
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case 26:
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case 33:
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case 34:
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case 35:
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case 37: {
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error = FALSE;
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break;
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}
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default: {
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error = TRUE;
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break;
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}
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}
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if ( error ) return usage_lf_hid_brute();
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fc = param_get8(Cmd, 1);
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if ( fc == 0) return usage_lf_hid_brute();
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PrintAndLog("Bruteforceing HID Reader");
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PrintAndLog("Press pm3-button to abort simulation or run another command");
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for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){
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if (ukbhit()) {
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PrintAndLog("aborted via keyboard!");
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c.cmd = CMD_PING;
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c.arg[0] = 0x00;
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c.arg[1] = 0x00;
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c.arg[2] = 0x00;
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clearCommandBuffer();
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SendCommand(&c);
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return 1;
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}
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calcWiegand( fmtlen, fc, cn, &hi, &lo);
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c.arg[0] = hi;
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c.arg[1] = lo;
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clearCommandBuffer();
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SendCommand(&c);
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PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
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// pause
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sleep(1);
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}
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return 0;
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}
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@ -16,8 +16,9 @@ int CmdLFHID(const char *Cmd);
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int CmdHIDDemodFSK(const char *Cmd);
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int CmdHIDSim(const char *Cmd);
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int CmdHIDClone(const char *Cmd);
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int CmdHIDWiegand(const char *Cmd);
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int CmdHIDBrute(const char *Cmd);
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int usage_hid_wiegand();
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int usage_lf_hid_wiegand(void);
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int usage_lf_hid_brute(void);
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#endif
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