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Update -m 12000 module and unit test for longer salts

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This commit is contained in:
jsteube 2019-02-19 11:12:28 +01:00
parent 7cb5e77f16
commit 942acb266e
2 changed files with 18 additions and 24 deletions
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40
src/modules/module_10200.c
View File

@ -22,6 +22,7 @@ static const u64 KERN_TYPE = 50;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
| OPTI_TYPE_NOT_ITERATED;
static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE
| OPTS_TYPE_ST_BASE64
| OPTS_TYPE_ST_ADD80
| OPTS_TYPE_ST_ADDBITS14;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
@ -76,8 +77,8 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
| TOKEN_ATTR_VERIFY_SIGNATURE;
token.sep[1] = '$';
token.len_min[1] = 0;
token.len_max[1] = 76;
token.len_min[1] = (SALT_MIN * 8) / 6;
token.len_max[1] = (SALT_MAX * 8) / 6;
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_BASE64A;
@ -96,29 +97,18 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
const u8 *salt_pos = token.buf[1];
const int salt_len = token.len[1];
u8 tmp_buf[100];
int tmp_len;
const bool parse_rc = generic_salt_decode (hashconfig, salt_pos, salt_len, (u8 *) salt->salt_buf, (int *) &salt->salt_len);
memset (tmp_buf, 0, sizeof (tmp_buf));
tmp_len = base64_decode (base64_to_int, (const u8 *) salt_pos, salt_len, tmp_buf);
if (tmp_len > 55) return (PARSER_SALT_LENGTH);
tmp_buf[tmp_len] = 0x80;
memcpy (salt->salt_buf, tmp_buf, tmp_len + 1);
salt->salt_len = tmp_len;
if (parse_rc == false) return (PARSER_SALT_LENGTH);
// hash
const u8 *hash_pos = token.buf[2];
const int hash_len = token.len[2];
memset (tmp_buf, 0, sizeof (tmp_buf));
u8 tmp_buf[256] = { 0 };
tmp_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_len, tmp_buf);
const int tmp_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_len, tmp_buf);
if (tmp_len < 32 + 1) return (PARSER_HASH_LENGTH);
@ -151,13 +141,15 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
// challenge
char challenge[100] = { 0 };
char chal_buf[SALT_MAX * 2];
base64_encode (int_to_base64, (const u8 *) salt->salt_buf, salt->salt_len, (u8 *) challenge);
const int chal_len = base64_encode (int_to_base64, (const u8 *) salt->salt_buf, salt->salt_len, (u8 *) chal_buf);
chal_buf[chal_len] = 0;
// response
char tmp_buf[100];
char tmp_buf[SALT_MAX * 2];
const int tmp_len = snprintf (tmp_buf, sizeof (tmp_buf), "%s %08x%08x%08x%08x",
(char *) cram_md5->user,
@ -166,11 +158,13 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
byte_swap_32 (digest[2]),
byte_swap_32 (digest[3]));
char response[100] = { 0 };
tmp_buf[tmp_len] = 0;
base64_encode (int_to_base64, (const u8 *) tmp_buf, tmp_len, (u8 *) response);
char resp_buf[SALT_MAX * 2] = { 0 };
const int line_len = snprintf (line_buf, line_size, "%s%s$%s", SIGNATURE_CRAM_MD5, challenge, response);
base64_encode (int_to_base64, (const u8 *) tmp_buf, tmp_len, (u8 *) resp_buf);
const int line_len = snprintf (line_buf, line_size, "%s%s$%s", SIGNATURE_CRAM_MD5, chal_buf, resp_buf);
return line_len;
}

2
tools/test_modules/m10200.pm
View File

@ -12,7 +12,7 @@ use Digest::MD5 qw (md5);
use Digest::HMAC qw (hmac_hex);
use MIME::Base64 qw (encode_base64 decode_base64);
sub module_constraints { [[0, 255], [0, 255], [0, 55], [0, 55], [-1, -1]] }
sub module_constraints { [[0, 255], [0, 127], [0, 55], [0, 55], [-1, -1]] }
sub module_generate_hash
{