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Merge branch '1.0' into 2.0

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This commit is contained in:
terrafrost 2020-01-17 03:59:18 -06:00
commit 2b08c31fb7
1 changed files with 46 additions and 32 deletions
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78
phpseclib/Net/SSH2.php
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@ -1541,8 +1541,8 @@ class SSH2
if ($kex_algorithm === 'curve25519-sha256@libssh.org') { if ($kex_algorithm === 'curve25519-sha256@libssh.org') {
$x = Random::string(32); $x = Random::string(32);
$eBytes = sodium_crypto_box_publickey_from_secretkey($x); $eBytes = sodium_crypto_box_publickey_from_secretkey($x);
$clientKexInitMessage = NET_SSH2_MSG_KEX_ECDH_INIT; $clientKexInitMessage = 'NET_SSH2_MSG_KEX_ECDH_INIT';
$serverKexReplyMessage = NET_SSH2_MSG_KEX_ECDH_REPLY; $serverKexReplyMessage = 'NET_SSH2_MSG_KEX_ECDH_REPLY';
$kexHash = new Hash('sha256'); $kexHash = new Hash('sha256');
} else { } else {
if (strpos($kex_algorithm, 'diffie-hellman-group-exchange') === 0) { if (strpos($kex_algorithm, 'diffie-hellman-group-exchange') === 0) {
@ -1596,8 +1596,8 @@ class SSH2
$gBytes $gBytes
); );
$clientKexInitMessage = NET_SSH2_MSG_KEXDH_GEX_INIT; $clientKexInitMessage = 'NET_SSH2_MSG_KEXDH_GEX_INIT';
$serverKexReplyMessage = NET_SSH2_MSG_KEXDH_GEX_REPLY; $serverKexReplyMessage = 'NET_SSH2_MSG_KEXDH_GEX_REPLY';
} else { } else {
switch ($kex_algorithm) { switch ($kex_algorithm) {
// see http://tools.ietf.org/html/rfc2409#section-6.2 and // see http://tools.ietf.org/html/rfc2409#section-6.2 and
@ -1624,8 +1624,8 @@ class SSH2
// the generator field element is 2 (decimal) and the hash function is sha1. // the generator field element is 2 (decimal) and the hash function is sha1.
$g = new BigInteger(2); $g = new BigInteger(2);
$prime = new BigInteger($prime, 16); $prime = new BigInteger($prime, 16);
$clientKexInitMessage = NET_SSH2_MSG_KEXDH_INIT; $clientKexInitMessage = 'NET_SSH2_MSG_KEXDH_INIT';
$serverKexReplyMessage = NET_SSH2_MSG_KEXDH_REPLY; $serverKexReplyMessage = 'NET_SSH2_MSG_KEXDH_REPLY';
} }
switch ($kex_algorithm) { switch ($kex_algorithm) {
@ -1653,13 +1653,20 @@ class SSH2
$eBytes = $e->toBytes(true); $eBytes = $e->toBytes(true);
} }
$data = pack('CNa*', $clientKexInitMessage, strlen($eBytes), $eBytes); $data = pack('CNa*', constant($clientKexInitMessage), strlen($eBytes), $eBytes);
if (!$this->_send_binary_packet($data)) { if (!$this->_send_binary_packet($data)) {
$this->bitmap = 0; $this->bitmap = 0;
user_error('Connection closed by server'); user_error('Connection closed by server');
return false; return false;
} }
switch ($clientKexInitMessage) {
case 'NET_SSH2_MSG_KEX_ECDH_INIT':
$this->_updateLogHistory('NET_SSH2_MSG_KEXDH_INIT', 'NET_SSH2_MSG_KEX_ECDH_INIT');
break;
case 'NET_SSH2_MSG_KEXDH_GEX_INIT':
$this->_updateLogHistory('UNKNOWN', 'NET_SSH2_MSG_KEXDH_GEX_INIT');
}
$response = $this->_get_binary_packet(); $response = $this->_get_binary_packet();
if ($response === false) { if ($response === false) {
@ -1672,10 +1679,17 @@ class SSH2
} }
extract(unpack('Ctype', $this->_string_shift($response, 1))); extract(unpack('Ctype', $this->_string_shift($response, 1)));
if ($type != $serverKexReplyMessage) { if ($type != constant($serverKexReplyMessage)) {
user_error('Expected SSH_MSG_KEXDH_REPLY'); user_error("Expected $serverKexReplyMessage");
return false; return false;
} }
switch ($serverKexReplyMessage) {
case 'NET_SSH2_MSG_KEX_ECDH_REPLY':
$this->_updateLogHistory('NET_SSH2_MSG_KEXDH_REPLY', 'NET_SSH2_MSG_KEX_ECDH_REPLY');
break;
case 'NET_SSH2_MSG_KEXDH_GEX_REPLY':
$this->_updateLogHistory('UNKNOWN', 'NET_SSH2_MSG_KEXDH_GEX_REPLY');
}
if (strlen($response) < 4) { if (strlen($response) < 4) {
return false; return false;
@ -2298,9 +2312,7 @@ class SSH2
switch ($type) { switch ($type) {
case NET_SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ: // in theory, the password can be changed case NET_SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ: // in theory, the password can be changed
if (defined('NET_SSH2_LOGGING')) { $this->_updateLogHistory('UNKNOWN', 'NET_SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ');
$this->message_number_log[count($this->message_number_log) - 1] = 'NET_SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ';
}
if (strlen($response) < 4) { if (strlen($response) < 4) {
return false; return false;
} }
@ -2451,12 +2463,8 @@ class SSH2
// see http://tools.ietf.org/html/rfc4256#section-3.2 // see http://tools.ietf.org/html/rfc4256#section-3.2
if (strlen($this->last_interactive_response)) { if (strlen($this->last_interactive_response)) {
$this->last_interactive_response = ''; $this->last_interactive_response = '';
} elseif (defined('NET_SSH2_LOGGING')) { } else {
$this->message_number_log[count($this->message_number_log) - 1] = str_replace( $this->_updateLogHistory('UNKNOWN', 'NET_SSH2_MSG_USERAUTH_INFO_REQUEST');
'UNKNOWN',
'NET_SSH2_MSG_USERAUTH_INFO_REQUEST',
$this->message_number_log[count($this->message_number_log) - 1]
);
} }
if (!count($responses) && $num_prompts) { if (!count($responses) && $num_prompts) {
@ -2479,13 +2487,7 @@ class SSH2
return false; return false;
} }
if (defined('NET_SSH2_LOGGING') && NET_SSH2_LOGGING == self::LOG_COMPLEX) { $this->_updateLogHistory('UNKNOWN', 'NET_SSH2_MSG_USERAUTH_INFO_RESPONSE');
$this->message_number_log[count($this->message_number_log) - 1] = str_replace(
'UNKNOWN',
'NET_SSH2_MSG_USERAUTH_INFO_RESPONSE',
$this->message_number_log[count($this->message_number_log) - 1]
);
}
/* /*
After receiving the response, the server MUST send either an After receiving the response, the server MUST send either an
@ -2612,13 +2614,7 @@ class SSH2
case NET_SSH2_MSG_USERAUTH_PK_OK: case NET_SSH2_MSG_USERAUTH_PK_OK:
// we'll just take it on faith that the public key blob and the public key algorithm name are as // we'll just take it on faith that the public key blob and the public key algorithm name are as
// they should be // they should be
if (defined('NET_SSH2_LOGGING') && NET_SSH2_LOGGING == self::LOG_COMPLEX) { $this->_updateLogHistory('UNKNOWN', 'NET_SSH2_MSG_USERAUTH_PK_OK');
$this->message_number_log[count($this->message_number_log) - 1] = str_replace(
'UNKNOWN',
'NET_SSH2_MSG_USERAUTH_PK_OK',
$this->message_number_log[count($this->message_number_log) - 1]
);
}
} }
$packet = $part1 . chr(1) . $part2; $packet = $part1 . chr(1) . $part2;
@ -5060,4 +5056,22 @@ class SSH2
$this->windowColumns = $columns; $this->windowColumns = $columns;
$this->windowRows = $rows; $this->windowRows = $rows;
} }
/**
* Update packet types in log history
*
* @param string $old
* @param string $new
* @access private
*/
function _updateLogHistory($old, $new)
{
if (defined('NET_SSH2_LOGGING') && NET_SSH2_LOGGING == self::LOG_COMPLEX) {
$this->message_number_log[count($this->message_number_log) - 1] = str_replace(
$old,
$new,
$this->message_number_log[count($this->message_number_log) - 1]
);
}
}
} }