/
module_18200.c
408 lines (328 loc) · 17.1 KB
/
module_18200.c
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/**
* 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"
static const u32 ATTACK_EXEC = ATTACK_EXEC_INSIDE_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_4;
static const u32 HASH_CATEGORY = HASH_CATEGORY_NETWORK_PROTOCOL;
static const char *HASH_NAME = "Kerberos 5, etype 23, AS-REP";
static const u64 KERN_TYPE = 18200;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
| OPTI_TYPE_NOT_ITERATED;
static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
| OPTS_TYPE_PT_GENERATE_LE;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$krb5asrep$23$user@domain.com:3e156ada591263b8aab0965f5aebd837$007497cb51b6c8116d6407a782ea0e1c5402b17db7afa6b05a6d30ed164a9933c754d720e279c6c573679bd27128fe77e5fea1f72334c1193c8ff0b370fadc6368bf2d49bbfdba4c5dccab95e8c8ebfdc75f438a0797dbfb2f8a1a5f4c423f9bfc1fea483342a11bd56a216f4d5158ccc4b224b52894fadfba3957dfe4b6b8f5f9f9fe422811a314768673e0c924340b8ccb84775ce9defaa3baa0910b676ad0036d13032b0dd94e3b13903cc738a7b6d00b0b3c210d1f972a6c7cae9bd3c959acf7565be528fc179118f28c679f6deeee1456f0781eb8154e18e49cb27b64bf74cd7112a0ebae2102ac";
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; }
typedef struct krb5asrep
{
u32 account_info[512];
u32 checksum[4];
u32 edata2[5120];
u32 edata2_len;
u32 format;
} krb5asrep_t;
static const char *SIGNATURE_KRB5ASREP = "$krb5asrep$";
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;
u32 native_threads = 0;
if (device_param->opencl_device_type & CL_DEVICE_TYPE_CPU)
{
native_threads = 1;
}
else if (device_param->opencl_device_type & CL_DEVICE_TYPE_GPU)
{
#if defined (__APPLE__)
native_threads = 32;
#else
if (device_param->device_local_mem_size < 49152)
{
native_threads = MIN (device_param->kernel_preferred_wgs_multiple, 32); // We can't just set 32, because Intel GPU need 8
}
else
{
native_threads = device_param->kernel_preferred_wgs_multiple;
}
#endif
}
hc_asprintf (&jit_build_options, "-D FIXED_LOCAL_SIZE=%u -D _unroll", native_threads);
return jit_build_options;
}
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 (krb5asrep_t);
return esalt_size;
}
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)
{
// amdgpu-pro-20.50-1234664-ubuntu-20.04 (legacy)
// test_1619967069/test_report.log:! unhandled return code 255, cmdline : ./hashcat --quiet --potfile-disable --runtime 400 --hwmon-disable -D 2 --backend-vector-width 4 -a 3 -m 18200 test_1619967069/18200_multihash_bruteforce.txt test_1619967069/18200_passwords.txt
if ((device_param->opencl_device_vendor_id == VENDOR_ID_AMD) && (device_param->has_vperm == false))
{
return true;
}
return false;
}
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;
krb5asrep_t *krb5asrep = (krb5asrep_t *) esalt_buf;
hc_token_t token;
token.signatures_cnt = 1;
token.signatures_buf[0] = SIGNATURE_KRB5ASREP;
token.len[0] = strlen (SIGNATURE_KRB5ASREP);
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
/**
* hc
* format 1: $krb5asrep$23$user_principal_name:checksum$edata2
*
* jtr
* format 2: $krb5asrep$user_principal_name:checksum$edata2
*/
if (line_len < (int) strlen (SIGNATURE_KRB5ASREP)) return (PARSER_SALT_LENGTH);
memset (krb5asrep, 0, sizeof (krb5asrep_t));
size_t parse_off = 0;
if (line_buf[token.len[0]] == '2' && line_buf[token.len[0] + 1] == '3' && line_buf[token.len[0] + 2] == '$')
{
// hashcat format
krb5asrep->format = 1;
parse_off += 2;
}
else
{
// jtr format
krb5asrep->format = 2;
}
char *account_info_start = (char *) line_buf + strlen (SIGNATURE_KRB5ASREP) + parse_off;
char *account_info_stop = strchr ((const char *) account_info_start, ':');
if (account_info_stop == NULL) return (PARSER_SEPARATOR_UNMATCHED);
account_info_stop++; // we want the : char included
const int account_info_len = account_info_stop - account_info_start;
token.token_cnt = 4;
if (krb5asrep->format == 1)
{
token.token_cnt++;
// etype
token.sep[1] = '$';
token.len[1] = 2;
token.attr[1] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
// user_principal_name
token.sep[2] = ':';
token.len[2] = account_info_len;
token.attr[2] = TOKEN_ATTR_FIXED_LENGTH;
// checksum
token.sep[3] = '$';
token.len_min[3] = 32;
token.len_max[3] = 32;
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
// edata2
token.sep[4] = '$';
token.len_min[4] = 64;
token.len_max[4] = 40960;
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
}
else
{
// user_principal_name
token.sep[1] = ':';
token.len[1] = account_info_len;
token.attr[1] = TOKEN_ATTR_FIXED_LENGTH;
// checksum
token.sep[2] = '$';
token.len_min[2] = 32;
token.len_max[2] = 32;
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
// edata2
token.sep[3] = '$';
token.len_min[3] = 64;
token.len_max[3] = 40960;
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
}
const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
const u8 *checksum_pos = NULL;
const u8 *data_pos = NULL;
int data_len = 0;
if (krb5asrep->format == 1)
{
checksum_pos = token.buf[3];
data_pos = token.buf[4];
data_len = token.len[4];
memcpy (krb5asrep->account_info, token.buf[2], token.len[2]);
}
else
{
checksum_pos = token.buf[2];
data_pos = token.buf[3];
data_len = token.len[3];
memcpy (krb5asrep->account_info, token.buf[1], token.len[1]);
}
if (checksum_pos == NULL || data_pos == NULL) return (PARSER_SALT_VALUE);
krb5asrep->checksum[0] = hex_to_u32 (checksum_pos + 0);
krb5asrep->checksum[1] = hex_to_u32 (checksum_pos + 8);
krb5asrep->checksum[2] = hex_to_u32 (checksum_pos + 16);
krb5asrep->checksum[3] = hex_to_u32 (checksum_pos + 24);
u8 *edata_ptr = (u8 *) krb5asrep->edata2;
for (int i = 0; i < data_len; i += 2)
{
const u8 p0 = data_pos[i + 0];
const u8 p1 = data_pos[i + 1];
*edata_ptr++ = hex_convert (p1) << 0
| hex_convert (p0) << 4;
}
krb5asrep->edata2_len = data_len / 2;
/* this is needed for hmac_md5 */
*edata_ptr++ = 0x80;
salt->salt_buf[0] = krb5asrep->checksum[0];
salt->salt_buf[1] = krb5asrep->checksum[1];
salt->salt_buf[2] = krb5asrep->checksum[2];
salt->salt_buf[3] = krb5asrep->checksum[3];
salt->salt_len = 16;
digest[0] = krb5asrep->checksum[0];
digest[1] = krb5asrep->checksum[1];
digest[2] = krb5asrep->checksum[2];
digest[3] = krb5asrep->checksum[3];
return (PARSER_OK);
}
int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const void *digest_buf, MAYBE_UNUSED const salt_t *salt, MAYBE_UNUSED const void *esalt_buf, MAYBE_UNUSED const void *hook_salt_buf, MAYBE_UNUSED const hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size)
{
const krb5asrep_t *krb5asrep = (const krb5asrep_t *) esalt_buf;
char data[5120 * 4 * 2] = { 0 };
for (u32 i = 0, j = 0; i < krb5asrep->edata2_len; i += 1, j += 2)
{
u8 *ptr_edata2 = (u8 *) krb5asrep->edata2;
sprintf (data + j, "%02x", ptr_edata2[i]);
}
int line_len = 0;
if (krb5asrep->format == 1)
{
line_len = snprintf (line_buf, line_size, "%s23%s%08x%08x%08x%08x$%s",
SIGNATURE_KRB5ASREP,
(char *) krb5asrep->account_info,
byte_swap_32 (krb5asrep->checksum[0]),
byte_swap_32 (krb5asrep->checksum[1]),
byte_swap_32 (krb5asrep->checksum[2]),
byte_swap_32 (krb5asrep->checksum[3]),
data);
}
else
{
line_len = snprintf (line_buf, line_size, "%s%s%08x%08x%08x%08x$%s",
SIGNATURE_KRB5ASREP,
(char *) krb5asrep->account_info,
byte_swap_32 (krb5asrep->checksum[0]),
byte_swap_32 (krb5asrep->checksum[1]),
byte_swap_32 (krb5asrep->checksum[2]),
byte_swap_32 (krb5asrep->checksum[3]),
data);
}
return line_len;
}
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_salt = MODULE_DEFAULT;
module_ctx->module_build_plain_postprocess = MODULE_DEFAULT;
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_DEFAULT;
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_hash_encode;
module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
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_DEFAULT;
module_ctx->module_kernel_loops_min = MODULE_DEFAULT;
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_DEFAULT;
module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
module_ctx->module_potfile_disable = MODULE_DEFAULT;
module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
module_ctx->module_pwdump_column = MODULE_DEFAULT;
module_ctx->module_pw_max = MODULE_DEFAULT;
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_DEFAULT;
module_ctx->module_unstable_warning = module_unstable_warning;
module_ctx->module_warmup_disable = MODULE_DEFAULT;
}