MSD-4 Implement whitelist check for langId parameter passed to flag.php
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Ursprung
9246cc9533
Commit
3ec58d6bc3
1 geänderte Dateien mit 10 neuen und 13 gelöschten Zeilen
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@ -1,16 +1,13 @@
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<?php
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//TODO security -> implement whitelist of characters for langId
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$country = str_replace(
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array('..', "\x00"),
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'',
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$_GET['langId']
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);
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$country = $_GET['langId'];
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$languageDir = realpath(dirname(__FILE__) . '/../application/language');
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if (preg_match('/^[A-Z0-9_]+\z/i', $country)) {
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define('DS', DIRECTORY_SEPARATOR);
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$languageDir = realpath(dirname(__FILE__) . '/../application/language');
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$image = $languageDir . DS . $country . DS . 'flag.gif';
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header('Content-Type: image/gif');
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define('DS', DIRECTORY_SEPARATOR);
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$image = $languageDir . DS . $country . DS . 'flag.gif';
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readfile(realpath($image));
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if (file_exists($image)) {
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header('Content-Type: image/gif');
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readfile(realpath($image));
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}
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}
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