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mirror of https://github.com/hashcat/hashcat.git synced 2025-07-16 03:28:13 +00:00
hashcat/src/modules/module_13751.c
Jens Steube d7fb2ffa06 Fixed both a false positive and a false negative in -m 21800. Previously,
only the first hash in a multihash list was marked as cracked, regardless
of which hash was actually cracked. For example, if the second hash was
cracked, it incorrectly marked the first as cracked and left the second
uncracked. This issue only affected beta versions and only in multihash
cracking mode.

Added deep-comp kernel support for Kerberos modes 28800 and 28900,
enabling multihash cracking for the same user in the same domain, even if
the password was changed or the recording was bad.

Added a rule ensuring that device buffer sizes for password candidates,
hooks, and transport (tmps) must be smaller than 1/4 of the maximum
allocatable memory. If not, hashcat now automatically reduces kernel-accel
down to 1, then halves the number of threads and restores kernel-accel up
to its maximum, repeating until the size requirement is met.

Fixed salt length limit verification for -m 20712.

Fixed password length limit for -m 14400.

Fixed unit test salt generator for -m 21100, which could produce duplicate
hashes under certain conditions.

Added the OPTS_TYPE_NATIVE_THREADS flag to the following hash modes
(after benchmarking): 7700, 7701, 9000, 1375x, 1376x, 14800, 19500, 23900.
2025-07-11 15:02:58 +02:00

417 lines
18 KiB
C

/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
#include "common.h"
#include "types.h"
#include "modules.h"
#include "bitops.h"
#include "convert.h"
#include "shared.h"
#include "memory.h"
#include "cpu_crc32.h"
#include "keyboard_layout.h"
static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_KERNEL;
static const u32 DGST_POS0 = 0;
static const u32 DGST_POS1 = 1;
static const u32 DGST_POS2 = 2;
static const u32 DGST_POS3 = 3;
static const u32 DGST_SIZE = DGST_SIZE_4_32;
static const u32 HASH_CATEGORY = HASH_CATEGORY_FDE;
static const char *HASH_NAME = "VeraCrypt SHA256 + XTS 512 bit (legacy)";
static const u64 KERN_TYPE = 13751;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
| OPTI_TYPE_SLOW_HASH_SIMD_LOOP
| OPTI_TYPE_REGISTER_LIMIT;
static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
| OPTS_TYPE_PT_GENERATE_LE
| OPTS_TYPE_NATIVE_THREADS
| OPTS_TYPE_BINARY_HASHFILE
| OPTS_TYPE_LOOP_EXTENDED
| OPTS_TYPE_MP_MULTI_DISABLE
| OPTS_TYPE_COPY_TMPS;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "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";
u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
u32 module_dgst_pos1 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS1; }
u32 module_dgst_pos2 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS2; }
u32 module_dgst_pos3 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS3; }
u32 module_dgst_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_SIZE; }
u32 module_hash_category (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_CATEGORY; }
const char *module_hash_name (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_NAME; }
u64 module_kern_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return KERN_TYPE; }
u32 module_opti_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTI_TYPE; }
u64 module_opts_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTS_TYPE; }
u32 module_salt_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return SALT_TYPE; }
const char *module_st_hash (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_HASH; }
const char *module_st_pass (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_PASS; }
#define VC_SALT_LEN 64
#define VC_DATA_LEN 448
#define VC_HEADER_LEN 512
typedef struct vc_tmp
{
u32 ipad[16];
u32 opad[16];
u32 dgst[64];
u32 out[64];
u32 pim_key[64];
int pim; // marker for cracked
int pim_check; // marker for _extended kernel
} vc_tmp_t;
typedef struct vc
{
u32 data_buf[112];
u32 keyfile_buf16[16];
u32 keyfile_buf32[32];
u32 keyfile_enabled;
u32 signature;
keyboard_layout_mapping_t keyboard_layout_mapping_buf[256];
int keyboard_layout_mapping_cnt;
int pim_multi; // 2048 for boot (not SHA-512 or Whirlpool), 1000 for others
int pim_start;
int pim_stop;
} vc_t;
static const int ROUNDS_VERACRYPT_500000 = 500000;
static const float MIN_SUFFICIENT_ENTROPY_FILE = 7.0f;
bool module_unstable_warning (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const hc_device_param_t *device_param)
{
if ((device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE) && (device_param->opencl_device_type & CL_DEVICE_TYPE_GPU))
{
if (device_param->is_metal == true)
{
if (strncmp (device_param->device_name, "Intel", 5) == 0)
{
// Intel Iris Graphics, Metal Version 244.303: failed to create 'm13751_init' pipeline, timeout reached
return true;
}
}
}
return false;
}
char *module_jit_build_options (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const hashes_t *hashes, MAYBE_UNUSED const hc_device_param_t *device_param)
{
char *jit_build_options = NULL;
// Extra treatment for Apple systems
if (device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE)
{
return jit_build_options;
}
// NVIDIA GPU
if (device_param->opencl_device_vendor_id == VENDOR_ID_NV)
{
hc_asprintf (&jit_build_options, "-D _unroll");
}
return jit_build_options;
}
int module_build_plain_postprocess (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const hashes_t *hashes, MAYBE_UNUSED const void *tmps, const u32 *src_buf, MAYBE_UNUSED const size_t src_sz, MAYBE_UNUSED const int src_len, u32 *dst_buf, MAYBE_UNUSED const size_t dst_sz)
{
const vc_tmp_t *vc_tmp = (const vc_tmp_t *) tmps;
if (vc_tmp->pim == 0)
{
return snprintf ((char *) dst_buf, dst_sz, "%s", (const char *) src_buf);
}
else
{
return snprintf ((char *) dst_buf, dst_sz, "%s (PIM=%d)", (const char *) src_buf, vc_tmp->pim - 15);
}
}
bool module_potfile_disable (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const bool potfile_disable = true;
return potfile_disable;
}
bool module_outfile_check_disable (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const bool outfile_check_disable = true;
return outfile_check_disable;
}
u64 module_esalt_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u64 esalt_size = (const u64) sizeof (vc_t);
return esalt_size;
}
u64 module_tmp_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u64 tmp_size = (const u64) sizeof (vc_tmp_t);
return tmp_size;
}
u32 module_kernel_loops_min (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u32 kernel_loops_min = 250;
return kernel_loops_min;
}
u32 module_kernel_loops_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u32 kernel_loops_max = 1000; // lowest PIM multiplier
return kernel_loops_max;
}
u32 module_pw_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
// this overrides the reductions of PW_MAX in case optimized kernel is selected
// IOW, even in optimized kernel mode it support length 64
const u32 pw_max = 128;
return pw_max;
}
int module_hash_init_selftest (MAYBE_UNUSED const hashconfig_t *hashconfig, hash_t *hash)
{
const size_t st_hash_len = strlen (hashconfig->st_hash);
char *tmpdata = (char *) hcmalloc (st_hash_len / 2);
for (size_t i = 0, j = 0; j < st_hash_len; i += 1, j += 2)
{
const u8 c = hex_to_u8 ((const u8 *) hashconfig->st_hash + j);
tmpdata[i] = c;
}
const int parser_status = module_hash_decode (hashconfig, hash->digest, hash->salt, hash->esalt, hash->hook_salt, hash->hash_info, tmpdata, st_hash_len / 2);
hcfree (tmpdata);
return parser_status;
}
int module_hash_binary_parse (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, hashes_t *hashes)
{
// note: if module_hash_binary_parse exists, then module_hash_decode is not called
HCFILE fp;
if (hc_fopen (&fp, hashes->hashfile, "rb") == false) return (PARSER_HAVE_ERRNO);
char *in = (char *) hcmalloc (VC_HEADER_LEN);
const size_t n = hc_fread (in, 1, VC_HEADER_LEN, &fp);
hc_fclose (&fp);
if (n != VC_HEADER_LEN) return (PARSER_VC_FILE_SIZE);
hash_t *hashes_buf = hashes->hashes_buf;
hash_t *hash = &hashes_buf[0];
const int parser_status = module_hash_decode (hashconfig, hash->digest, hash->salt, hash->esalt, hash->hook_salt, hash->hash_info, in, VC_HEADER_LEN);
if (parser_status != PARSER_OK) return 0;
hcfree (in);
// keyfiles
vc_t *vc = (vc_t *) hash->esalt;
if (user_options->veracrypt_keyfiles)
{
char *keyfiles = hcstrdup (user_options->veracrypt_keyfiles);
char *saveptr = NULL;
char *keyfile = strtok_r (keyfiles, ",", &saveptr);
while (keyfile)
{
if (hc_path_read (keyfile))
{
cpu_crc32 (keyfile, (u8 *) vc->keyfile_buf16, 64);
cpu_crc32 (keyfile, (u8 *) vc->keyfile_buf32, 128);
}
keyfile = strtok_r ((char *) NULL, ",", &saveptr);
}
hcfree (keyfiles);
vc->keyfile_enabled = 1;
}
// keyboard layout mapping
if (user_options->keyboard_layout_mapping)
{
if (hc_path_read (user_options->keyboard_layout_mapping))
{
initialize_keyboard_layout_mapping (user_options->keyboard_layout_mapping, vc->keyboard_layout_mapping_buf, &vc->keyboard_layout_mapping_cnt);
}
}
// veracrypt PIM
salt_t *salt = hash->salt;
if ((user_options->veracrypt_pim_start_chgd == true) && (user_options->veracrypt_pim_stop_chgd == true))
{
vc->pim_start = 15 + user_options->veracrypt_pim_start;
vc->pim_stop = 15 + user_options->veracrypt_pim_stop;
salt->salt_iter = vc->pim_stop * 1000 - 1;
}
return 1;
}
int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len)
{
u32 *digest = (u32 *) digest_buf;
vc_t *vc = (vc_t *) esalt_buf;
// entropy
const float entropy = get_entropy ((const u8 *) line_buf, line_len);
if (entropy < MIN_SUFFICIENT_ENTROPY_FILE) return (PARSER_INSUFFICIENT_ENTROPY);
// salt
memcpy (salt->salt_buf, line_buf, VC_SALT_LEN);
salt->salt_len = VC_SALT_LEN;
// iter
salt->salt_iter = ROUNDS_VERACRYPT_500000 - 1;
// pim
vc->pim_multi = 1000;
vc->pim_start = 0;
vc->pim_stop = 0;
// data
memcpy (vc->data_buf, line_buf + VC_SALT_LEN, VC_DATA_LEN);
// signature
vc->signature = 0x41524556; // "VERA"
// fake digest
memcpy (digest, vc->data_buf, 112);
return (PARSER_OK);
}
void module_init (module_ctx_t *module_ctx)
{
module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
module_ctx->module_attack_exec = module_attack_exec;
module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
module_ctx->module_benchmark_mask = MODULE_DEFAULT;
module_ctx->module_benchmark_charset = MODULE_DEFAULT;
module_ctx->module_benchmark_salt = MODULE_DEFAULT;
module_ctx->module_bridge_name = MODULE_DEFAULT;
module_ctx->module_bridge_type = MODULE_DEFAULT;
module_ctx->module_build_plain_postprocess = module_build_plain_postprocess;
module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
module_ctx->module_deprecated_notice = MODULE_DEFAULT;
module_ctx->module_dgst_pos0 = module_dgst_pos0;
module_ctx->module_dgst_pos1 = module_dgst_pos1;
module_ctx->module_dgst_pos2 = module_dgst_pos2;
module_ctx->module_dgst_pos3 = module_dgst_pos3;
module_ctx->module_dgst_size = module_dgst_size;
module_ctx->module_dictstat_disable = MODULE_DEFAULT;
module_ctx->module_esalt_size = module_esalt_size;
module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
module_ctx->module_extra_tuningdb_block = MODULE_DEFAULT;
module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
module_ctx->module_hash_binary_count = MODULE_DEFAULT;
module_ctx->module_hash_binary_parse = module_hash_binary_parse;
module_ctx->module_hash_binary_save = MODULE_DEFAULT;
module_ctx->module_hash_decode_postprocess = MODULE_DEFAULT;
module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
module_ctx->module_hash_decode = module_hash_decode;
module_ctx->module_hash_encode_status = MODULE_DEFAULT;
module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
module_ctx->module_hash_encode = MODULE_DEFAULT;
module_ctx->module_hash_init_selftest = module_hash_init_selftest;
module_ctx->module_hash_mode = MODULE_DEFAULT;
module_ctx->module_hash_category = module_hash_category;
module_ctx->module_hash_name = module_hash_name;
module_ctx->module_hashes_count_min = MODULE_DEFAULT;
module_ctx->module_hashes_count_max = MODULE_DEFAULT;
module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
module_ctx->module_hook12 = MODULE_DEFAULT;
module_ctx->module_hook23 = MODULE_DEFAULT;
module_ctx->module_hook_salt_size = MODULE_DEFAULT;
module_ctx->module_hook_size = MODULE_DEFAULT;
module_ctx->module_jit_build_options = module_jit_build_options;
module_ctx->module_jit_cache_disable = MODULE_DEFAULT;
module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
module_ctx->module_kernel_loops_max = module_kernel_loops_max;
module_ctx->module_kernel_loops_min = module_kernel_loops_min;
module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
module_ctx->module_kern_type = module_kern_type;
module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
module_ctx->module_opti_type = module_opti_type;
module_ctx->module_opts_type = module_opts_type;
module_ctx->module_outfile_check_disable = module_outfile_check_disable;
module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
module_ctx->module_potfile_disable = module_potfile_disable;
module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
module_ctx->module_pwdump_column = MODULE_DEFAULT;
module_ctx->module_pw_max = module_pw_max;
module_ctx->module_pw_min = MODULE_DEFAULT;
module_ctx->module_salt_max = MODULE_DEFAULT;
module_ctx->module_salt_min = MODULE_DEFAULT;
module_ctx->module_salt_type = module_salt_type;
module_ctx->module_separator = MODULE_DEFAULT;
module_ctx->module_st_hash = module_st_hash;
module_ctx->module_st_pass = module_st_pass;
module_ctx->module_tmp_size = module_tmp_size;
module_ctx->module_unstable_warning = module_unstable_warning;
module_ctx->module_warmup_disable = MODULE_DEFAULT;
}