diff --git a/include/interface_migrate.h b/include/interface_migrate.h index 18753188f..06ca1907a 100644 --- a/include/interface_migrate.h +++ b/include/interface_migrate.h @@ -90,15 +90,6 @@ typedef struct ikepsk } ikepsk_t; -typedef struct krb5asrep -{ - u32 account_info[512]; - u32 checksum[4]; - u32 edata2[5120]; - u32 edata2_len; - -} krb5asrep_t; - typedef struct keepass { u32 version; @@ -812,7 +803,6 @@ typedef enum hash_type HASH_TYPE_JWT = 66, HASH_TYPE_ELECTRUM_WALLET = 67, HASH_TYPE_ANSIBLE_VAULT = 70, - HASH_TYPE_KRB5ASREP = 71, } hash_type_t; @@ -987,7 +977,6 @@ typedef enum kern_type KERN_TYPE_KECCAK_384 = 17900, KERN_TYPE_KECCAK_512 = 18000, KERN_TYPE_TOTP_HMACSHA1 = 18100, - KERN_TYPE_KRB5ASREP = 18200, KERN_TYPE_APFS = 18300, KERN_TYPE_PLAINTEXT = 99999, @@ -1127,7 +1116,6 @@ int sha512macos_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_bu int episerver4_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig); int sha512grub_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig); int sha512b64s_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig); -int krb5asrep_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig); int sapb_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig); int sapg_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig); int drupal7_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig); diff --git a/src/interface_migrate.c b/src/interface_migrate.c index 6022f6b08..afdc7be70 100644 --- a/src/interface_migrate.c +++ b/src/interface_migrate.c @@ -65,7 +65,6 @@ " 11400 | SIP digest authentication (MD5) | Network Protocols", " 16100 | TACACS+ | Network Protocols", " 16500 | JWT (JSON Web Token) | Network Protocols", - " 18200 | Kerberos 5 AS-REP etype 23 | Network Protocols", " 121 | SMF (Simple Machines Forum) > v1.1 | Forums, CMS, E-Commerce, Frameworks", " 2611 | vBulletin < v3.8.5 | Forums, CMS, E-Commerce, Frameworks", " 2711 | vBulletin >= v3.8.5 | Forums, CMS, E-Commerce, Frameworks", @@ -465,7 +464,6 @@ static const char *ST_HASH_17600 = "7c2dc1d743735d4e069f3bda85b1b7e9172033dfdd8c static const char *ST_HASH_17900 = "5804b7ada5806ba79540100e9a7ef493654ff2a21d94d4f2ce4bf69abda5d94bf03701fe9525a15dfdc625bfbd769701"; static const char *ST_HASH_18000 = "2fbf5c9080f0a704de2e915ba8fdae6ab00bbc026b2c1c8fa07da1239381c6b7f4dfd399bf9652500da723694a4c719587dd0219cb30eabe61210a8ae4dc0b03"; static const char *ST_HASH_18100 = "597056:3600"; -static const char *ST_HASH_18200 = "$krb5asrep$23$user@domain.com:3e156ada591263b8aab0965f5aebd837$007497cb51b6c8116d6407a782ea0e1c5402b17db7afa6b05a6d30ed164a9933c754d720e279c6c573679bd27128fe77e5fea1f72334c1193c8ff0b370fadc6368bf2d49bbfdba4c5dccab95e8c8ebfdc75f438a0797dbfb2f8a1a5f4c423f9bfc1fea483342a11bd56a216f4d5158ccc4b224b52894fadfba3957dfe4b6b8f5f9f9fe422811a314768673e0c924340b8ccb84775ce9defaa3baa0910b676ad0036d13032b0dd94e3b13903cc738a7b6d00b0b3c210d1f972a6c7cae9bd3c959acf7565be528fc179118f28c679f6deeee1456f0781eb8154e18e49cb27b64bf74cd7112a0ebae2102ac"; static const char *ST_HASH_18300 = "$fvde$2$16$58778104701476542047675521040224$20000$39602e86b7cea4a34f4ff69ff6ed706d68954ee474de1d2a9f6a6f2d24d172001e484c1d4eaa237d"; static const char *ST_HASH_99999 = "hashcat"; @@ -630,7 +628,6 @@ static const char *HT_17600 = "SHA3-512"; static const char *HT_17900 = "Keccak-384"; static const char *HT_18000 = "Keccak-512"; static const char *HT_18100 = "TOTP (HMAC-SHA1)"; -static const char *HT_18200 = "Kerberos 5 AS-REP etype 23"; static const char *HT_18300 = "Apple File System (APFS)"; static const char *HT_99999 = "Plaintext"; @@ -715,7 +712,6 @@ static const char *SIGNATURE_DRUPAL7 = "$S$"; static const char *SIGNATURE_ECRYPTFS = "$ecryptfs$"; static const char *SIGNATURE_EPISERVER = "$episerver$"; static const char *SIGNATURE_KEEPASS = "$keepass$"; -static const char *SIGNATURE_KRB5ASREP = "$krb5asrep$23$"; static const char *SIGNATURE_MD5AIX = "{smd5}"; static const char *SIGNATURE_MD5APR1 = "$apr1$"; static const char *SIGNATURE_MEDIAWIKI_B = "$B$"; @@ -12246,102 +12242,6 @@ int rar5_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSE return (PARSER_OK); } -int krb5asrep_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) -{ - u32 *digest = (u32 *) hash_buf->digest; - - salt_t *salt = hash_buf->salt; - - krb5asrep_t *krb5asrep = (krb5asrep_t *) hash_buf->esalt; - - 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; - - /** - * $krb5asrep$23$user_principal_name:checksum$edata2 - */ - - if (input_len < 16) return (PARSER_SALT_LENGTH); - - char *upn_info_start = (char *) input_buf + strlen(SIGNATURE_KRB5ASREP); - char *upn_info_stop = strchr ((const char *) upn_info_start, ':'); - - if (upn_info_stop == NULL) return (PARSER_SEPARATOR_UNMATCHED); - - upn_info_stop++; // we want the : char included - - const int upn_info_len = upn_info_stop - upn_info_start; - - token.token_cnt = 4; - - token.len[1] = upn_info_len; - token.attr[1] = TOKEN_ATTR_FIXED_LENGTH; - - token.sep[2] = '$'; - token.len_min[2] = 32; - token.len_max[2] = 32; - token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH - | TOKEN_ATTR_VERIFY_HEX; - - 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 (input_buf, input_len, &token); - - if (rc_tokenizer != PARSER_OK) return (rc_tokenizer); - - const u8 *checksum_pos = token.buf[2]; - - const u8 *data_pos = token.buf[3]; - const int data_len = token.len[3]; - - memcpy (krb5asrep->account_info, token.buf[1], token.len[1]); - - 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 axcrypt_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) { u32 *digest = (u32 *) hash_buf->digest; @@ -15740,7 +15640,6 @@ u32 kernel_threads_mxx (hashcat_ctx_t *hashcat_ctx) if (hashconfig->hash_mode == 10410) kernel_threads = 64; // RC4 if (hashconfig->hash_mode == 10500) kernel_threads = 64; // RC4 if (hashconfig->hash_mode == 15700) kernel_threads = 1; // SCRYPT - if (hashconfig->hash_mode == 18200) kernel_threads = 64; // RC4 // let the module decide if it allows user-defined values over module defined valaues @@ -19109,30 +19008,6 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const int out_size, snprintf (out_buf, out_size, "%06d:%" PRIu64, digest_buf[0], tmp_salt_buf); } - else if (hash_mode == 18200) - { - krb5asrep_t *krb5asreps = (krb5asrep_t *) esalts_buf; - - krb5asrep_t *krb5asrep = &krb5asreps[digest_cur]; - - 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]); - } - - snprintf (out_buf, out_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); - } else if (hash_mode == 18300) { apple_secure_notes_t *apple_secure_notess = (apple_secure_notes_t *) esalts_buf; @@ -23707,23 +23582,6 @@ int hashconfig_init (hashcat_ctx_t *hashcat_ctx) hashconfig->st_pass = ST_PASS_HASHCAT_PLAIN; break; - case 18200: hashconfig->hash_type = HASH_TYPE_KRB5ASREP; - hashconfig->salt_type = SALT_TYPE_EMBEDDED; - hashconfig->attack_exec = ATTACK_EXEC_INSIDE_KERNEL; - hashconfig->opts_type = OPTS_TYPE_PT_GENERATE_LE; - hashconfig->kern_type = KERN_TYPE_KRB5ASREP; - hashconfig->dgst_size = DGST_SIZE_4_4; - hashconfig->parse_func = krb5asrep_parse_hash; - hashconfig->opti_type = OPTI_TYPE_ZERO_BYTE - | OPTI_TYPE_NOT_ITERATED; - hashconfig->dgst_pos0 = 0; - hashconfig->dgst_pos1 = 1; - hashconfig->dgst_pos2 = 2; - hashconfig->dgst_pos3 = 3; - hashconfig->st_hash = ST_HASH_18200; - hashconfig->st_pass = ST_PASS_HASHCAT_PLAIN; - break; - case 18300: hashconfig->hash_type = HASH_TYPE_APPLE_SECURE_NOTES; hashconfig->salt_type = SALT_TYPE_EMBEDDED; hashconfig->attack_exec = ATTACK_EXEC_OUTSIDE_KERNEL; @@ -23859,7 +23717,6 @@ int hashconfig_init (hashcat_ctx_t *hashcat_ctx) case 16600: hashconfig->esalt_size = sizeof (electrum_wallet_t); break; case 16700: hashconfig->esalt_size = sizeof (apple_secure_notes_t); break; case 16900: hashconfig->esalt_size = sizeof (ansible_vault_t); break; - case 18200: hashconfig->esalt_size = sizeof (krb5asrep_t); break; case 18300: hashconfig->esalt_size = sizeof (apple_secure_notes_t); break; } diff --git a/src/modules/module_18200.c b/src/modules/module_18200.c new file mode 100644 index 000000000..580dc5d62 --- /dev/null +++ b/src/modules/module_18200.c @@ -0,0 +1,268 @@ +/** + * 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 AS-REP etype 23"; +static const u32 HASH_TYPE = HASH_TYPE_GENERIC; +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_STATE_BUFFER_LE + | OPTS_TYPE_PT_GENERATE_LE; +static const u32 PWDUMP_COLUMN = PWDUMP_COLUMN_NTLM_HASH; +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; } +u32 module_hash_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 HASH_TYPE; } +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_pwdump_column (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 PWDUMP_COLUMN; } +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; + +} krb5asrep_t; + +static const char *SIGNATURE_KRB5ASREP = "$krb5asrep$23$"; + +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; +} + +u32 module_kernel_threads_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_threads_min = 64; + + return kernel_threads_min; +} + +u32 module_kernel_threads_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_threads_max = 64; + + return kernel_threads_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 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; + + 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; + + /** + * $krb5asrep$23$user_principal_name:checksum$edata2 + */ + + if (line_len < 16) return (PARSER_SALT_LENGTH); + + char *upn_info_start = (char *) line_buf + strlen (SIGNATURE_KRB5ASREP); + char *upn_info_stop = strchr ((const char *) upn_info_start, ':'); + + if (upn_info_stop == NULL) return (PARSER_SEPARATOR_UNMATCHED); + + upn_info_stop++; // we want the : char included + + const int upn_info_len = upn_info_stop - upn_info_start; + + token.token_cnt = 4; + + token.len[1] = upn_info_len; + token.attr[1] = TOKEN_ATTR_FIXED_LENGTH; + + token.sep[2] = '$'; + token.len_min[2] = 32; + token.len_max[2] = 32; + token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH + | TOKEN_ATTR_VERIFY_HEX; + + 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 = token.buf[2]; + + const u8 *data_pos = token.buf[3]; + const int data_len = token.len[3]; + + memcpy (krb5asrep->account_info, token.buf[1], token.len[1]); + + 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 hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size) +{ + const u32 *digest = (const u32 *) digest_buf; + + 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]); + } + + const int 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_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_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_binary_verify = MODULE_DEFAULT; + module_ctx->module_hash_decode_outfile = 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 = 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_hash_type = module_hash_type; + module_ctx->module_hlfmt_disable = 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_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_kernel_threads_max; + module_ctx->module_kernel_threads_min = module_kernel_threads_min; + module_ctx->module_kern_type = module_kern_type; + 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_disable = MODULE_DEFAULT; + module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT; + module_ctx->module_pwdump_column = module_pwdump_column; + 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_DEFAULT; + module_ctx->module_warmup_disable = MODULE_DEFAULT; +} diff --git a/tools/test_modules/m18200.pm b/tools/test_modules/m18200.pm new file mode 100644 index 000000000..b17aefbc6 --- /dev/null +++ b/tools/test_modules/m18200.pm @@ -0,0 +1,122 @@ +#!/usr/bin/env perl + +## +## Author......: See docs/credits.txt +## License.....: MIT +## + +use strict; +use warnings; + +use Encode; +use Crypt::RC4; +use Digest::HMAC_MD5 qw (hmac_md5); +use Digest::MD4 qw (md4); +use Digest::MD5 qw (md5_hex); +use POSIX qw (strftime); + +sub module_constraints { [[0, 255], [16, 16], [0, 27], [16, 16], [-1, -1]] } + +sub module_generate_hash +{ + my $word = shift; + my $salt = shift; + my $user_principal_name = shift // "user\@domain.com"; + my $checksum = shift; + my $edata2 = shift; + + my $k = md4 (encode ("UTF-16LE", $word)); + + my $k1 = hmac_md5 ("\x08\x00\x00\x00", $k); + + my $cleartext_ticket = '7981df3081dca01b3019a003020117a112041071e026814da2' . + '3f129f0e67a01b73f79aa11c301a3018a003020100a111180f32303138313033303039353' . + '831365aa206020460fdc6caa311180f32303337303931343032343830355aa40703050050' . + 'c10000a511180f32303138313033303039353831365aa611180f323031383130333030393' . + '53831365aa711180f32303138313033303139353831365aa811180f323031383130333131' . + '30303433385aa90d1b0b545952454c4c2e434f5250aa20301ea003020101a11730151b066' . + 'b72627467741b0b545952454c4c2e434f5250'; + + if (defined $checksum) + { + $checksum = pack ("H*", $checksum); + } + else + { + my $nonce = unpack ("H*", random_bytes (8)); + + $cleartext_ticket = $nonce . $cleartext_ticket; + + $checksum = hmac_md5 (pack ("H*", $cleartext_ticket), $k1); + } + + my $k3 = hmac_md5 ($checksum, $k1); + + if (defined $edata2) + { + my $cipher_decrypt = Crypt::RC4->new ($k3); + + my $ticket_decrypt = unpack ("H*", $cipher_decrypt->RC4 (pack ("H*", $edata2))); + + my $check_correct = ((substr ($ticket_decrypt, 16, 4) eq "7981" && substr ($ticket_decrypt, 22, 2) eq "30")) || + ((substr ($ticket_decrypt, 16, 2) eq "79") && (substr ($ticket_decrypt, 20, 2) eq "30")) || + ((substr ($ticket_decrypt, 16, 4) eq "7982") && (substr ($ticket_decrypt, 24, 2) eq "30")); + + if ($check_correct == 1) + { + $cleartext_ticket = $ticket_decrypt; + } + else # validation failed + { + # fake/wrong ticket (otherwise if we just decrypt/encrypt we end up with false positives all the time) + $cleartext_ticket = "0" x (length ($cleartext_ticket) + 16); + } + } + + my $cipher = Crypt::RC4->new ($k3); + + $edata2 = $cipher->RC4 (pack ("H*", $cleartext_ticket)); + + my $tmp_hash = sprintf ('$krb5asrep$23$%s:%s$%s', $user_principal_name, unpack ("H*", $checksum), unpack ("H*", $edata2)); + + return $tmp_hash; +} + +sub module_verify_hash +{ + my $line = shift; + + my ($hash, $hash2, $word) = split (':', $line); + + return unless defined $hash; + return unless defined $hash2; + return unless defined $word; + + my @data = split ('\$', $hash); + + return unless scalar @data == 4; + + shift @data; + + my $signature = shift @data; + my $algorithm = shift @data; + my $user_principal_name = shift @data; + + return unless ($signature eq "krb5asrep"); + + my @data2 = split ('\$', $hash2); + + my $checksum = shift @data2; + my $edata2 = shift @data2; + + return unless (length ($checksum) == 32); + return unless (length ($edata2) >= 64); + + my $word_packed = pack_if_HEX_notation ($word); + + my $new_hash = module_generate_hash ($word_packed, undef, $user_principal_name, $checksum, $edata2); + + return ($new_hash, $word); +} + +1;