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SSH2: reset $this->bitmap when the connection fails

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This commit is contained in:
terrafrost 2018-10-05 21:27:59 -05:00
parent b4e66d343e
commit 0c26415f93
1 changed files with 19 additions and 3 deletions
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22
phpseclib/Net/SSH2.php
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@ -1221,6 +1221,7 @@ class Net_SSH2
}
if (feof($this->fsock)) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -1247,6 +1248,7 @@ class Net_SSH2
if (!$this->send_kex_first) {
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -1479,6 +1481,7 @@ class Net_SSH2
$kexinit_payload_server = $this->_get_binary_packet();
if ($kexinit_payload_server === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -1606,6 +1609,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -1701,12 +1705,14 @@ class Net_SSH2
$data = pack('CNa*', $clientKexInitMessage, strlen($eBytes), $eBytes);
if (!$this->_send_binary_packet($data)) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -1815,6 +1821,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -2284,6 +2291,7 @@ class Net_SSH2
}
return $this->_login_helper($username, $password);
}
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -2340,6 +2348,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -2398,6 +2407,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -2498,6 +2508,7 @@ class Net_SSH2
} else {
$orig = $response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -2686,6 +2697,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -2742,6 +2754,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -2868,6 +2881,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -3008,6 +3022,7 @@ class Net_SSH2
$response = $this->_get_binary_packet();
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}
@ -3352,8 +3367,8 @@ class Net_SSH2
function _get_binary_packet($skip_channel_filter = false)
{
if (!is_resource($this->fsock) || feof($this->fsock)) {
user_error('Connection closed prematurely');
$this->bitmap = 0;
user_error('Connection closed prematurely');
return false;
}
@ -3396,8 +3411,8 @@ class Net_SSH2
while ($remaining_length > 0) {
$temp = fread($this->fsock, $remaining_length);
if ($temp === false || feof($this->fsock)) {
user_error('Error reading from socket');
$this->bitmap = 0;
user_error('Error reading from socket');
return false;
}
$buffer.= $temp;
@ -3415,8 +3430,8 @@ class Net_SSH2
if ($this->hmac_check !== false) {
$hmac = fread($this->fsock, $this->hmac_size);
if ($hmac === false || strlen($hmac) != $this->hmac_size) {
user_error('Error reading socket');
$this->bitmap = 0;
user_error('Error reading socket');
return false;
} elseif ($hmac != $this->hmac_check->hash(pack('NNCa*', $this->get_seq_no, $packet_length, $padding_length, $payload . $padding))) {
user_error('Invalid HMAC');
@ -3724,6 +3739,7 @@ class Net_SSH2
$response = $this->_get_binary_packet(true);
if ($response === false) {
$this->bitmap = 0;
user_error('Connection closed by server');
return false;
}