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wordfenceURLHoover.php
<?php require_once(dirname(__FILE__) . '/wfAPI.php'); require_once(dirname(__FILE__) . '/wfArray.php'); class wordfenceURLHoover { private $debug = false; public $errorMsg = false; private $hostsToAdd = false; private $table = ''; private $apiKey = false; private $wordpressVersion = false; private $useDB = true; private $hostKeys = array(); private $hostList = array(); public $currentHooverID = false; private $_foundSome = false; private $_excludedHosts = array(); private $api = false; private $db = false; public static function standardExcludedHosts() { static $standardExcludedHosts = null; if ($standardExcludedHosts !== null) { return $standardExcludedHosts; } global $wpdb; $excludedHosts = array(); if (is_multisite()) { $blogIDs = $wpdb->get_col("SELECT blog_id FROM {$wpdb->blogs}"); //Can't use wp_get_sites or get_sites because they return empty at 10k sites foreach ($blogIDs as $id) { $homeURL = get_home_url($id); $host = parse_url($homeURL, PHP_URL_HOST); if ($host) { $excludedHosts[$host] = 1; } $siteURL = get_site_url($id); $host = parse_url($siteURL, PHP_URL_HOST); if ($host) { $excludedHosts[$host] = 1; } } } else { $homeURL = wfUtils::wpHomeURL(); $host = parse_url($homeURL, PHP_URL_HOST); if ($host) { $excludedHosts[$host] = 1; } $siteURL = wfUtils::wpSiteURL(); $host = parse_url($siteURL, PHP_URL_HOST); if ($host) { $excludedHosts[$host] = 1; } } $standardExcludedHosts = array_keys($excludedHosts); return $standardExcludedHosts; } public function __sleep() { $this->writeHosts(); return array('debug', 'errorMsg', 'table', 'apiKey', 'wordpressVersion'); } public function __wakeup() { $this->hostsToAdd = new wfArray(array('owner', 'host', 'path', 'hostKey')); $this->api = new wfAPI($this->apiKey, $this->wordpressVersion); $this->db = new wfDB(); } public function __construct($apiKey, $wordpressVersion, $db = false, $continuation = false) { $this->hostsToAdd = new wfArray(array('owner', 'host', 'path', 'hostKey')); $this->apiKey = $apiKey; $this->wordpressVersion = $wordpressVersion; $this->api = new wfAPI($apiKey, $wordpressVersion); if($db){ $this->db = $db; } else { $this->db = new wfDB(); } global $wpdb; if(isset($wpdb)){ $this->table = wfDB::networkTable('wfHoover'); } else { $this->table = 'wp_wfHoover'; } if (!$continuation) { $this->cleanup(); } } public function cleanup() { $this->db->truncate($this->table); } public function hoover($id, $data, $excludedHosts = array()) { $this->currentHooverID = $id; $this->_foundSome = 0; $this->_excludedHosts = $excludedHosts; @preg_replace_callback('_((?:(?://)(?:\S+(?::\S*)?@)?(?:(?:(?:[a-z\xa1-\xff0-9.-]+)(?:\.(?:(?:xn--[a-z\xa1-\xff0-9-]+)|[a-z\xa1-\xff]{2,}))))(?::\d{2,5})?)(?:/[a-z0-9\-\_\.~\!\*\(\);\:@&\=\+\$,\?#\[\]%]*)*)_iS', array($this, 'captureURL'), $data); $this->writeHosts(); return $this->_foundSome; } private function dbg($msg) { if ($this->debug) { wordfence::status(4, 'info', $msg); } } public function captureURL($matches) { $id = $this->currentHooverID; $url = 'http:' . $matches[0]; if (!filter_var($url, FILTER_VALIDATE_URL)) { return; } $components = parse_url($url); if (preg_match('/\.(xn--(?:[a-z0-9-]*)[a-z0-9]+|[a-z\xa1-\xff0-9]{2,})$/i', $components['host'], $tld)) { $tld = strtolower($tld[1]); if (strpos(wfConfig::get('tldlist', ''), '|' . $tld . '|') === false) { return; } } else { return; } foreach ($this->_excludedHosts as $h) { if (strcasecmp($h, $components['host']) === 0) { return; } } $this->_foundSome++; $host = (isset($components['host']) ? $components['host'] : ''); $path = (isset($components['path']) && !empty($components['path']) ? $components['path'] : '/'); $hashes = $this->_generateHashes($url); foreach ($hashes as $h) { $this->hostsToAdd->push(array('owner' => $id, 'host' => $host, 'path' => $path, 'hostKey' => wfUtils::substr($h, 0, 4))); } if($this->hostsToAdd->size() > 1000){ $this->writeHosts(); } } private function writeHosts() { if ($this->hostsToAdd->size() < 1) { return; } if ($this->useDB) { $sql = "INSERT INTO " . $this->table . " (owner, host, path, hostKey) VALUES "; while ($elem = $this->hostsToAdd->shift()) { //This may be an issue for hyperDB or other abstraction layers, but leaving it for now. $sql .= sprintf("('%s', '%s', '%s', '%s'),", $this->db->realEscape($elem['owner']), $this->db->realEscape($elem['host']), $this->db->realEscape($elem['path']), $this->db->realEscape($elem['hostKey']) ); } $sql = rtrim($sql, ','); $this->db->queryWrite($sql); $this->hostsToAdd->collectGarbage(); } else { while ($elem = $this->hostsToAdd->shift()) { $keys = str_split($elem['hostKey'], 4); foreach ($keys as $k) { $this->hostKeys[] = $k; } $this->hostList[] = array( 'owner' => $elem['owner'], 'host' => $elem['host'], 'path' => $elem['path'], 'hostKey' => $elem['hostKey'] ); } $this->hostsToAdd->collectGarbage(); } } public function getBaddies() { wordfence::status(4, 'info', __("Gathering host keys.", 'wordfence')); $allHostKeys = ''; if ($this->useDB) { global $wpdb; $dbh = $wpdb->dbh; $useMySQLi = wfUtils::useMySQLi(); if ($useMySQLi) { //If direct-access MySQLi is available, we use it to minimize the memory footprint instead of letting it fetch everything into an array first wordfence::status(4, 'info', __("Using MySQLi directly.", 'wordfence')); $result = $dbh->query("SELECT DISTINCT hostKey FROM {$this->table} ORDER BY hostKey ASC LIMIT 100000"); /* We limit to 100,000 prefixes since more than that cannot be reliably checked within the default max_execution_time */ if (!is_object($result)) { $this->errorMsg = "Unable to query database"; $this->dbg($this->errorMsg); return false; } while ($row = $result->fetch_assoc()) { $allHostKeys .= $row['hostKey']; } } else { $q1 = $this->db->querySelect("SELECT DISTINCT hostKey FROM {$this->table} ORDER BY hostKey ASC LIMIT 100000"); /* We limit to 100,000 prefixes since more than that cannot be reliably checked within the default max_execution_time */ foreach ($q1 as $hRec) { $allHostKeys .= $hRec['hostKey']; } } } else { $allHostKeys = implode('', array_values(array_unique($this->hostKeys))); } /** * Check hash prefixes first. Each one is a 4-byte binary prefix of a SHA-256 hash of the URL. The response will * be a binary list of 4-byte indices; The full URL for each index should be sent in the secondary query to * find the true good/bad status. */ $allCount = wfUtils::strlen($allHostKeys) / 4; if ($allCount > 0) { if ($this->debug) { $this->dbg("Checking {$allCount} hostkeys"); for ($i = 0; $i < $allCount; $i++) { $key = wfUtils::substr($allHostKeys, $i * 4, 4); $this->dbg("Checking hostkey: " . bin2hex($key)); } } wordfence::status(2, 'info', sprintf(/* translators: Number of domains. */ __("Checking %d host keys against Wordfence scanning servers.", 'wordfence'), $allCount)); $resp = $this->api->binCall('check_host_keys', $allHostKeys); wordfence::status(2, 'info', __("Done host key check.", 'wordfence')); $this->dbg("Done host key check"); $badHostKeys = ''; if ($resp['code'] >= 200 && $resp['code'] <= 299) { $this->dbg("Host key response: " . bin2hex($resp['data'])); $dataLen = wfUtils::strlen($resp['data']); if ($dataLen > 0 && $dataLen % 2 == 0) { $this->dbg("Checking response indexes"); for ($i = 0; $i < $dataLen; $i += 2) { $idx = wfUtils::array_first(unpack('n', wfUtils::substr($resp['data'], $i, 2))); $this->dbg("Checking index {$idx}"); if ($idx < $allCount) { $prefix = wfUtils::substr($allHostKeys, $idx * 4, 4); $badHostKeys .= $prefix; $this->dbg("Got bad hostkey for record: " . bin2hex($prefix)); } else { $this->dbg("Bad allHostKeys index: {$idx}"); $this->errorMsg = "Bad allHostKeys index: {$idx}"; return false; } } } else if ($dataLen > 0) { $this->errorMsg = "Invalid data length received from Wordfence server: " . $dataLen; $this->dbg($this->errorMsg); return false; } } else { $this->errorMsg = "Wordfence server responded with an error. HTTP code " . $resp['code'] . " and data: " . $resp['data']; return false; } $badCount = wfUtils::strlen($badHostKeys) / 4; if ($badCount > 0) { $urlsToCheck = array(); $totalURLs = 0; //Reconcile flagged prefixes with their corresponding URLs for ($i = 0; $i < $badCount; $i++) { $prefix = wfUtils::substr($badHostKeys, $i * 4, 4); if ($this->useDB) { /** * Putting a 10000 limit in here for sites that have a huge number of items with the same URL * that repeats. This is an edge case. But if the URLs are malicious then presumably the admin * will fix the malicious URLs and on subsequent scans the items (owners) that are above the * 10000 limit will appear. */ $q1 = $this->db->querySelect("SELECT DISTINCT owner, host, path FROM {$this->table} WHERE hostKey = %s LIMIT 10000", $prefix); foreach ($q1 as $rec) { $url = 'http://' . $rec['host'] . $rec['path']; if (!isset($urlsToCheck[$rec['owner']])) { $urlsToCheck[$rec['owner']] = array(); } if (!in_array($url, $urlsToCheck[$rec['owner']])) { $urlsToCheck[$rec['owner']][] = $url; $totalURLs++; } } } else { foreach ($this->hostList as $rec) { $pos = wfUtils::strpos($rec['hostKey'], $prefix); if ($pos !== false && $pos % 4 == 0) { $url = 'http://' . $rec['host'] . $rec['path']; if (!isset($urlsToCheck[$rec['owner']])) { $urlsToCheck[$rec['owner']] = array(); } if (!in_array($url, $urlsToCheck[$rec['owner']])) { $urlsToCheck[$rec['owner']][] = $url; $totalURLs++; } } } } if ($totalURLs > 10000) { break; } } if (count($urlsToCheck) > 0) { wordfence::status(2, 'info', sprintf( /* translators: 1. Number of URLs. 2. Number of files. */ __('Checking %1$d URLs from %2$d sources.', 'wordfence'), $totalURLs, sizeof($urlsToCheck) )); $badURLs = $this->api->call('check_bad_urls', array(), array('toCheck' => json_encode($urlsToCheck))); wordfence::status(2, 'info', __("Done URL check.", 'wordfence')); $this->dbg("Done URL check"); if (is_array($badURLs) && count($badURLs) > 0) { $finalResults = array(); foreach ($badURLs as $file => $badSiteList) { if (!isset($finalResults[$file])) { $finalResults[$file] = array(); } foreach ($badSiteList as $badSite) { $finalResults[$file][] = array( 'URL' => $badSite[0], 'badList' => $badSite[1] ); } } $this->dbg("Confirmed " . count($badURLs) . " bad URLs"); return $finalResults; } } } } return array(); } protected function _generateHashes($url) { //The GSB specification requires generating and sending hash prefixes for a number of additional similar URLs. See: https://developers.google.com/safe-browsing/v4/urls-hashing#suffixprefix-expressions $canonicalURL = $this->_canonicalizeURL($url); //Extract the scheme $scheme = 'http'; if (preg_match('~^([a-z]+[a-z0-9+\.\-]*)://(.*)$~i', $canonicalURL, $matches)) { $scheme = strtolower($matches[1]); $canonicalURL = $matches[2]; } //Separate URL and query string $query = ''; if (preg_match('/^([^?]+)(\??.*)/', $canonicalURL, $matches)) { $canonicalURL = $matches[1]; $query = $matches[2]; } //Separate host and path $path = ''; preg_match('~^(.*?)(?:(/.*)|$)~', $canonicalURL, $matches); $host = $matches[1]; if (isset($matches[2])) { $path = $matches[2]; } //Clean host $host = $this->_normalizeHost($host); //Generate hosts list $hosts = array(); if (filter_var(trim($host, '[]'), FILTER_VALIDATE_IP)) { $hosts[] = $host; } else { $hostComponents = explode('.', $host); $numComponents = count($hostComponents) - 7; if ($numComponents < 1) { $numComponents = 1; } $hosts[] = $host; for ($i = $numComponents; $i < count($hostComponents) - 1; $i++) { $hosts[] = implode('.', array_slice($hostComponents, $i)); } } //Generate paths list $paths = array('/'); $pathComponents = array_filter(explode('/', $path)); $numComponents = min(count($pathComponents), 4); for ($i = 1; $i < $numComponents; $i++) { $paths[] = '/' . implode('/', array_slice($pathComponents, 0, $i)) . '/'; } if ($path != '/') { $paths[] = $path; } if (strlen($query) > 0) { $paths[] = $path . '?' . $query; } $paths = array_reverse($paths); //So we start at the most specific and move to most generic //Generate hashes $hashes = array(); foreach ($hosts as $h) { $hashes[$h] = hash('sha256', $h, true); //WFSB compatibility -- it uses hashes without the path foreach ($paths as $p) { $key = $h . $p; $hashes[$key] = hash('sha256', $key, true); break; //We no longer have any use for the extra path variants, so just include the primary one and exit the loop after } } return $hashes; } protected function _canonicalizeURL($url) { //Based on https://developers.google.com/safe-browsing/v4/urls-hashing#canonicalization and Google's reference implementation https://github.com/google/safebrowsing/blob/master/urls.go //Strip fragment $url = $this->_array_first(explode('#', $url)); //Trim space $url = trim($url); //Remove tabs, CR, LF $url = preg_replace('/[\t\n\r]/', '', $url); //Normalize escapes $url = $this->_normalizeEscape($url); if ($url === false) { return false; } //Extract the scheme $scheme = 'http'; if (preg_match('~^([a-z]+[a-z0-9+\.\-]*)://(.*)$~i', $url, $matches)) { $scheme = strtolower($matches[1]); $url = $matches[2]; } //Separate URL and query string $query = ''; if (preg_match('/^([^?]+)(\??.*)/', $url, $matches)) { $url = $matches[1]; $query = $matches[2]; } $endsWithSlash = substr($url, -1) == '/'; //Separate host and path $path = ''; preg_match('~^(.*?)(?:(/.*)|$)~', $url, $matches); $host = $matches[1]; if (isset($matches[2])) { $path = $matches[2]; } //Clean host $host = $this->_normalizeHost($host); if ($host === false) { return false; } //Clean path $path = preg_replace('~//+~', '/', $path); //Multiple slashes -> single slash $path = preg_replace('~(?:^|/)\.(?:$|/)~', '/', $path); //. path components removed while (preg_match('~/(?!\.\./)[^/]+/\.\.(?:$|/)~', $path)) { //Resolve .. $path = preg_replace('~/(?!\.\./)[^/]+/\.\.(?:$|/)~', '/', $path, 1); } $path = preg_replace('~(?:^|/)\.\.(?:$|/)~', '/', $path); //Eliminate .. at the beginning $path = trim($path, '.'); $path = preg_replace('/\.\.+/', '.', $path); if ($path == '.' || $path == '') { $path = '/'; } else if ($endsWithSlash && substr($path, -1) != '/') { $path .= '/'; } return $scheme . '://' . $host . $path . $query; } protected function _normalizeEscape($url) { $maxDepth = 1024; $i = 0; while (preg_match('/%([0-9a-f]{2})/i', $url)) { $url = preg_replace_callback('/%([0-9a-f]{2})/i', array($this, '_hex2binCallback'), $url); $i++; if ($i > $maxDepth) { return false; } } return preg_replace_callback('/[\x00-\x20\x7f-\xff#%]/', array($this, '_bin2hexCallback'), $url); } protected function _hex2binCallback($matches) { return wfUtils::hex2bin($matches[1]); } protected function _bin2hexCallback($matches) { return '%' . bin2hex($matches[0]); } protected function _normalizeHost($host) { //Strip username:password $host = $this->_array_last(explode('@', $host)); //IPv6 literal if (substr($host, 0, 1) == '[') { if (strpos($host, ']') === false) { //No closing bracket return false; } } //Strip port $host = preg_replace('/:\d+$/', '', $host); //Unicode to IDNA $u = rawurldecode($host); if (preg_match('/[\x81-\xff]/', $u)) { //0x80 is technically Unicode, but the GSB canonicalization doesn't consider it one if (function_exists('idn_to_ascii')) { //Some PHP versions don't have this and we don't have a polyfill $host = idn_to_ascii($u); } } //Remove extra dots $host = trim($host, '.'); $host = preg_replace('/\.\.+/', '.', $host); //Canonicalize IP addresses if ($iphost = $this->_parseIP($host)) { return $iphost; } return strtolower($host); } protected function _parseIP($host) { // The Windows resolver allows a 4-part dotted decimal IP address to have a // space followed by any old rubbish, so long as the total length of the // string doesn't get above 15 characters. So, "10.192.95.89 xy" is // resolved to 10.192.95.89. If the string length is greater than 15 // characters, e.g. "10.192.95.89 xy.wildcard.example.com", it will be // resolved through DNS. if (strlen($host) <= 15) { $host = $this->_array_first(explode(' ', $host)); } if (!preg_match('/^((?:0x[0-9a-f]+|[0-9\.])+)$/i', $host)) { return false; } $parts = explode('.', $host); if (count($parts) > 4) { return false; } $strings = array(); foreach ($parts as $i => $p) { if ($i == count($parts) - 1) { $strings[] = $this->_canonicalNum($p, 5 - count($parts)); } else { $strings[] = $this->_canonicalNum($p, 1); } if ($strings[$i] == '') { return ''; } } return implode('.', $strings); } protected function _canonicalNum($part, $n) { if ($n <= 0 || $n > 4) { return ''; } if (preg_match('/^0x(\d+)$/i', $part, $matches)) { //hex $part = hexdec($matches[1]); } else if (preg_match('/^0(\d+)$/i', $part, $matches)) { //octal $part = octdec($matches[1]); } else { $part = (int) $part; } $strings = array_fill(0, $n, ''); for ($i = $n - 1; $i >= 0; $i--) { $strings[$i] = (string) ($part & 0xff); $part = $part >> 8; } return implode('.', $strings); } protected function _array_first($array) { if (empty($array)) { return null; } return $array[0]; } protected function _array_last($array) { if (empty($array)) { return null; } return $array[count($array) - 1]; } }
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---
0755
audit-log
---
0755
dashboard
---
0755
rest-api
---
0755
Diff.php
5762 bytes
0644
IPTraf.php
1195 bytes
0644
IPTrafList.php
3054 bytes
0644
WFLSPHP52Compatability.php
1303 bytes
0644
compat.php
425 bytes
0644
diffResult.php
2874 bytes
0644
email_genericAlert.php
1422 bytes
0644
email_newIssues.php
9035 bytes
0644
email_unlockRequest.php
2397 bytes
0644
email_unsubscribeRequest.php
1077 bytes
0644
flags.php
6779 bytes
0644
live_activity.php
580 bytes
0644
menu_dashboard.php
28671 bytes
0644
menu_dashboard_options.php
15577 bytes
0644
menu_firewall.php
2167 bytes
0644
menu_firewall_blocking.php
10495 bytes
0644
menu_firewall_blocking_options.php
4737 bytes
0644
menu_firewall_waf.php
20443 bytes
0644
menu_firewall_waf_options.php
11357 bytes
0644
menu_install.php
1767 bytes
0644
menu_options.php
25291 bytes
0644
menu_scanner.php
22047 bytes
0644
menu_scanner_credentials.php
2838 bytes
0644
menu_scanner_options.php
8615 bytes
0644
menu_support.php
18243 bytes
0644
menu_tools.php
1528 bytes
0644
menu_tools_auditlog.php
16829 bytes
0644
menu_tools_diagnostic.php
50536 bytes
0644
menu_tools_importExport.php
1310 bytes
0644
menu_tools_livetraffic.php
40381 bytes
0644
menu_tools_twoFactor.php
20070 bytes
0644
menu_tools_whois.php
4722 bytes
0644
menu_wordfence_central.php
9889 bytes
0644
sodium_compat_fast.php
185 bytes
0644
sysinfo.php
1501 bytes
0644
viewFullActivityLog.php
1501 bytes
0644
wf503.php
9860 bytes
0644
wfAPI.php
10338 bytes
0644
wfActivityReport.php
20945 bytes
0644
wfAdminNoticeQueue.php
5323 bytes
0644
wfAlerts.php
7549 bytes
0644
wfArray.php
1816 bytes
0644
wfAuditLog.php
48265 bytes
0644
wfBrowscap.php
3996 bytes
0644
wfBrowscapCache.php
262994 bytes
0644
wfBulkCountries.php
10002 bytes
0644
wfCache.php
6166 bytes
0644
wfCentralAPI.php
26419 bytes
0644
wfConfig.php
125427 bytes
0644
wfCrawl.php
6722 bytes
0644
wfCredentialsController.php
5284 bytes
0644
wfCrypt.php
4146 bytes
0644
wfCurlInterceptor.php
1047 bytes
0644
wfDB.php
11764 bytes
0644
wfDashboard.php
8399 bytes
0644
wfDateLocalization.php
360582 bytes
0644
wfDeactivationOption.php
2184 bytes
0644
wfDiagnostic.php
68476 bytes
0644
wfDict.php
738 bytes
0644
wfDirectoryIterator.php
1937 bytes
0644
wfFileUtils.php
2784 bytes
0644
wfHelperBin.php
2015 bytes
0644
wfHelperString.php
2180 bytes
0644
wfIPWhitelist.php
1596 bytes
0644
wfImportExportController.php
3306 bytes
0644
wfInaccessibleDirectoryException.php
303 bytes
0644
wfInvalidPathException.php
266 bytes
0644
wfIpLocation.php
1768 bytes
0644
wfIpLocator.php
2810 bytes
0644
wfIssues.php
28582 bytes
0644
wfJWT.php
5455 bytes
0644
wfLicense.php
10682 bytes
0644
wfLockedOut.php
9959 bytes
0644
wfLog.php
58480 bytes
0644
wfMD5BloomFilter.php
5327 bytes
0644
wfModuleController.php
754 bytes
0644
wfNotification.php
6564 bytes
0644
wfOnboardingController.php
9443 bytes
0644
wfPersistenceController.php
819 bytes
0644
wfRESTAPI.php
377 bytes
0644
wfScan.php
16300 bytes
0644
wfScanEngine.php
136810 bytes
0644
wfScanEntrypoint.php
1070 bytes
0644
wfScanFile.php
1037 bytes
0644
wfScanFileLink.php
403 bytes
0644
wfScanFileListItem.php
408 bytes
0644
wfScanFileProperties.php
1095 bytes
0644
wfScanMonitor.php
4152 bytes
0644
wfScanPath.php
1817 bytes
0644
wfSchema.php
11175 bytes
0644
wfStyle.php
1244 bytes
0644
wfSupportController.php
24758 bytes
0644
wfUnlockMsg.php
1163 bytes
0644
wfUpdateCheck.php
27888 bytes
0644
wfUtils.php
127089 bytes
0644
wfVersionCheckController.php
19729 bytes
0644
wfVersionSupport.php
535 bytes
0644
wfView.php
2269 bytes
0644
wfViewResult.php
1455 bytes
0644
wfWebsite.php
1792 bytes
0644
wordfenceClass.php
447131 bytes
0644
wordfenceConstants.php
3650 bytes
0644
wordfenceHash.php
43726 bytes
0644
wordfenceScanner.php
31200 bytes
0644
wordfenceURLHoover.php
18804 bytes
0644
N4ST4R_ID | Naxtarrr