/** * 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; }