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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 CrossSiteScripting implements VulnerabilityScanner |
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{ |
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const EXPLOIT1 = '<script>alert(aaabbbccc);</script>'; |
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const EXPLOIT2 = '<h1>aaabbbccc</h1>'; |
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const EXPLOIT1REGEX = "<script>alert\(aaabbbccc\);<\/script>"; |
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const EXPLOIT2REGEX = "<h1>aaabbbccc<\/h1>"; |
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private $compare; |
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private $client; |
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private $logger; |
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View Code Duplication |
public function __construct(ClientInterface $client, array $compare, LoggerInterface $logger = null) |
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{ |
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$this->client = $client; |
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$this->compare = $compare; |
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if (empty($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 ($this->isXssPossible($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 isXssPossible($target) |
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{ |
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return (bool) preg_match("/\?|(.+?)\=/", (string) $target); |
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} |
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View Code Duplication |
public function verify($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 $url) { |
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if ($this->attack($url)) { |
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$this->logger->info('Is Vull'); |
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return true; |
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} |
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} |
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return false; |
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} |
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View Code Duplication |
public function attack($url) |
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{ |
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$this->logger->info('.'); |
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try { |
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$body = $this->client->get($url)->getBody()->getContents(); |
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if ($body && $this->checkSuccess($body) && $this->checkCompare($body)) { |
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return true; |
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} |
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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 checkSuccess($body) |
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{ |
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return (bool) preg_match('/'.static::EXPLOIT1REGEX.'|'.static::EXPLOIT2REGEX.'/', $body); |
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} |
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View Code Duplication |
public function generateUrls($target) |
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{ |
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$this->logger->info("\n".$target); |
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$urls1 = $this->generateUrlsByExploit($target, static::EXPLOIT1); |
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$urls2 = $this->generateUrlsByExploit($target, static::EXPLOIT2); |
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return array_merge($urls1, $urls2); |
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} |
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public function generateUrlsByExploit($target, $exploit) |
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{ |
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$explodeUrl = parse_url($target); |
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$explodeQuery = explode('&', $explodeUrl['query']); |
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if (!isset($explodeUrl['query'])) { |
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return []; |
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} |
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$wordsValue = []; |
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View Code Duplication |
foreach ($explodeQuery as $query) { |
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$explodeQueryEqual = explode('=', $query); |
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$wordsValue[$explodeQueryEqual[0]] = ''; |
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if (isset($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, $keyValue.'='.$exploit, $target); |
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} |
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return $urls; |
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} |
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public function checkCompare($body) |
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{ |
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foreach ($this->compare as $compare) { |
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$isValid = strpos($body, $compare); |
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if ($isValid !== false) { |
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return true; |
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} |
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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.