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hashcat/src/modules/module_28700.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"
#include "emu_inc_hash_sha1.h"
static const u32 ATTACK_EXEC = ATTACK_EXEC_INSIDE_KERNEL;
static const u32 DGST_POS0 = 3;
static const u32 DGST_POS1 = 7;
static const u32 DGST_POS2 = 2;
static const u32 DGST_POS3 = 6;
static const u32 DGST_SIZE = DGST_SIZE_4_8;
static const u32 HASH_CATEGORY = HASH_CATEGORY_RAW_HASH_AUTHENTICATED;
static const char *HASH_NAME = "Amazon AWS4-HMAC-SHA256";
static const u64 KERN_TYPE = 28700;
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_BE
| OPTS_TYPE_ST_ADD80;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$AWS-Sig-v4$0$20220221T000000Z$us-east-1$s3$421ab6e4af9f49fa30fa9c253fcfeb2ce91668e139e6b23303c5f75b04f8a3c4$3755ed2bc1b2346e003ccaa7d02ae8b73c72bcbe9f452ccf066c78504d786bbb";
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; }
static const char *SIGNATURE_AWS_SIG_V4 = "$AWS-Sig-v4$0$";
typedef struct aws4_sig_v4
{
u32 date[3];
u32 date_len;
u32 longdate[4];
u32 longdate_len;
u32 region[4];
u32 region_len;
u32 service[4];
u32 service_len;
u32 canonical[8];
u32 canonical_len;
u32 stringtosign[64];
u32 stringtosign_len;
} aws4_sig_v4_t;
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 (aws4_sig_v4_t);
return esalt_size;
}
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)
{
// reduce pw_max by 4
u32 pw_max = PW_MAX - 4;
if (user_options->optimized_kernel == true && hashconfig->has_optimized_kernel == true)
{
pw_max = PW_MAX_OLD - 4;
}
return pw_max;
}
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;
aws4_sig_v4_t *esalt = (aws4_sig_v4_t *) esalt_buf;
hc_token_t token;
memset (&token, 0, sizeof (hc_token_t));
token.token_cnt = 6;
token.signatures_cnt = 1;
token.signatures_buf[0] = SIGNATURE_AWS_SIG_V4;
token.len[0] = 14;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
// longdate
token.sep[1] = '$';
token.len[1] = 16;
token.attr[1] = TOKEN_ATTR_FIXED_LENGTH;
// region
token.sep[2] = '$';
token.len_min[2] = 1;
token.len_max[2] = 16;
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH;
// service
token.sep[3] = '$';
token.len_min[3] = 1;
token.len_max[3] = 16;
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH;
// canonical
token.sep[4] = '$';
token.len[4] = 32 * 2;
token.attr[4] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
// digest
token.sep[5] = '$';
token.len[5] = 32 * 2;
token.attr[5] = TOKEN_ATTR_FIXED_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);
memset (esalt, 0, sizeof (aws4_sig_v4_t));
bool parse_rc = false;
// longdate
const u8 *longdate_pos = token.buf[1];
const int longdate_len = token.len[1];
parse_rc = generic_salt_decode (hashconfig, longdate_pos, longdate_len, (u8 *) esalt->longdate, (int *) &esalt->longdate_len);
if (parse_rc == false) return (PARSER_SALT_LENGTH);
// date
parse_rc = generic_salt_decode (hashconfig, longdate_pos, 8, (u8 *) esalt->date, (int *) &esalt->date_len);
if (parse_rc == false) return (PARSER_SALT_LENGTH);
// region
const u8 *region_pos = token.buf[2];
const int region_len = token.len[2];
parse_rc = generic_salt_decode (hashconfig, region_pos, region_len, (u8 *) esalt->region, (int *) &esalt->region_len);
if (parse_rc == false) return (PARSER_SALT_LENGTH);
// service
const u8 *service_pos = token.buf[3];
const int service_len = token.len[3];
parse_rc = generic_salt_decode (hashconfig, service_pos, service_len, (u8 *) esalt->service, (int *) &esalt->service_len);
if (parse_rc == false) return (PARSER_SALT_LENGTH);
// canonical
const u8 *canonical_pos = token.buf[4];
const int canonical_len = token.len[4];
esalt->canonical_len = hex_decode (canonical_pos, canonical_len, (u8 *) esalt->canonical);
// handle unique salts detection
sha1_ctx_t sha1_ctx;
sha1_init (&sha1_ctx);
sha1_update (&sha1_ctx, esalt->canonical, esalt->canonical_len);
sha1_final (&sha1_ctx);
// store sha1(esalt->canonical) in salt_buf
salt->salt_iter = 1;
salt->salt_len = 20;
memcpy (salt->salt_buf, sha1_ctx.h, salt->salt_len);
// stringtosign
char *stringtosign_ptr = (char *) esalt->stringtosign;
size_t off = 0;
memcpy (stringtosign_ptr + off, (char *) "AWS4-HMAC-SHA256", 16);
off += 16;
stringtosign_ptr[off] = 0x0a;
off += 1;
memcpy (stringtosign_ptr + off, (char *) esalt->longdate, esalt->longdate_len);
off += esalt->longdate_len;
stringtosign_ptr[off] = 0x0a;
off += 1;
memcpy (stringtosign_ptr + off, (char *) esalt->date, esalt->date_len);
off += esalt->date_len;
stringtosign_ptr[off] = 0x2f;
off += 1;
memcpy (stringtosign_ptr + off, (char *) esalt->region, esalt->region_len);
off += esalt->region_len;
stringtosign_ptr[off] = 0x2f;
off += 1;
memcpy (stringtosign_ptr + off, (char *) esalt->service, esalt->service_len);
off += esalt->service_len;
stringtosign_ptr[off] = 0x2f;
off += 1;
memcpy (stringtosign_ptr + off, (char *) "aws4_request", 12);
off += 12;
stringtosign_ptr[off] = 0x0a;
off += 1;
memcpy (stringtosign_ptr + off, (const char *) canonical_pos, canonical_len);
off += canonical_len;
esalt->stringtosign_len = off;
// digest
const u8 *hash_pos = token.buf[5];
digest[0] = hex_to_u32 (hash_pos + 0);
digest[1] = hex_to_u32 (hash_pos + 8);
digest[2] = hex_to_u32 (hash_pos + 16);
digest[3] = hex_to_u32 (hash_pos + 24);
digest[4] = hex_to_u32 (hash_pos + 32);
digest[5] = hex_to_u32 (hash_pos + 40);
digest[6] = hex_to_u32 (hash_pos + 48);
digest[7] = hex_to_u32 (hash_pos + 56);
digest[0] = byte_swap_32 (digest[0]);
digest[1] = byte_swap_32 (digest[1]);
digest[2] = byte_swap_32 (digest[2]);
digest[3] = byte_swap_32 (digest[3]);
digest[4] = byte_swap_32 (digest[4]);
digest[5] = byte_swap_32 (digest[5]);
digest[6] = byte_swap_32 (digest[6]);
digest[7] = byte_swap_32 (digest[7]);
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 u32 *digest = (const u32 *) digest_buf;
const aws4_sig_v4_t *esalt = (const aws4_sig_v4_t *) esalt_buf;
u8 *out_buf = (u8 *) line_buf;
// signature
int out_len = snprintf (line_buf, line_size, "%s", SIGNATURE_AWS_SIG_V4);
// longdate
out_len += generic_salt_encode (hashconfig, (const u8 *) esalt->longdate, (const int) esalt->longdate_len, out_buf + out_len);
out_buf[out_len] = '$';
out_len++;
// region
out_len += generic_salt_encode (hashconfig, (const u8 *) esalt->region, (const int) esalt->region_len, out_buf + out_len);
out_buf[out_len] = '$';
out_len++;
// service
out_len += generic_salt_encode (hashconfig, (const u8 *) esalt->service, (const int) esalt->service_len, out_buf + out_len);
out_buf[out_len] = '$';
out_len++;
// canonical
out_len += hex_encode ((const u8 *) esalt->canonical, esalt->canonical_len, out_buf + out_len);
out_buf[out_len] = '$';
out_len++;
// digest
u32 tmp[8];
tmp[0] = digest[0];
tmp[1] = digest[1];
tmp[2] = digest[2];
tmp[3] = digest[3];
tmp[4] = digest[4];
tmp[5] = digest[5];
tmp[6] = digest[6];
tmp[7] = digest[7];
tmp[0] = byte_swap_32 (tmp[0]);
tmp[1] = byte_swap_32 (tmp[1]);
tmp[2] = byte_swap_32 (tmp[2]);
tmp[3] = byte_swap_32 (tmp[3]);
tmp[4] = byte_swap_32 (tmp[4]);
tmp[5] = byte_swap_32 (tmp[5]);
tmp[6] = byte_swap_32 (tmp[6]);
tmp[7] = byte_swap_32 (tmp[7]);
u32_to_hex (tmp[0], out_buf + out_len); out_len += 8;
u32_to_hex (tmp[1], out_buf + out_len); out_len += 8;
u32_to_hex (tmp[2], out_buf + out_len); out_len += 8;
u32_to_hex (tmp[3], out_buf + out_len); out_len += 8;
u32_to_hex (tmp[4], out_buf + out_len); out_len += 8;
u32_to_hex (tmp[5], out_buf + out_len); out_len += 8;
u32_to_hex (tmp[6], out_buf + out_len); out_len += 8;
u32_to_hex (tmp[7], out_buf + out_len); out_len += 8;
out_buf[out_len] = 0;
return out_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_charset = 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_DEFAULT;
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_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_DEFAULT;
module_ctx->module_unstable_warning = MODULE_DEFAULT;
module_ctx->module_warmup_disable = MODULE_DEFAULT;
}
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