u5CMS 3.9.3 Local File Inclusion

2015.02.10
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-98

? u5CMS 3.9.3 (thumb.php) Local File Inclusion Vulnerability Vendor: Stefan P. Minder Product web page: http://www.yuba.ch Affected version: 3.9.3 and 3.9.2 Summary: u5CMS is a little, handy Content Management System for medium-sized websites, conference / congress / submission administration, review processes, personalized serial mails, PayPal payments and online surveys based on PHP and MySQL and Apache. Desc: u5CMS suffers from an authenticated file inclusion vulnerability (LFI) when input passed thru the 'f' parameter to thumb.php script is not properly verified before being used to include files. This can be exploited to include files from local resources with their absolute path and with directory traversal attacks. Tested on: Apache 2.4.10 (Win32) PHP 5.6.3 MySQL 5.6.21 Vulnerabilities discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2015-5224 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2015-5224.php 29.12.2014 --- GET /u5cms/thumb.php?w=100&f=..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\windows\win.ini HTTP/1.1 GET /u5cms/thumb.php?w=100&f=/windows/win.ini HTTP/1.1


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