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Category:   Application (Multimedia)  >   1Two Livre d'Or Vendors:   1two.org
1Two Livre d'Or Input Validation Holes Permit Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1013971
SecurityTracker URL:  http://securitytracker.com/id/1013971
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  May 13 2005
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.0
Description:   Sylvain Thual (aka An0nym0uS) reported an input validation vulnerability in 1Two Livre d'Or. A remote user can conduct cross-site scripting attacks.

The 'guestbook.php' script does not properly validate user-supplied input in the nom, email, and message fields. A remote user can submit specially crafted input that, when viewed by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the 1Two Livre d'Or software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the 1Two Livre d'Or software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has reportedly issued a fix.
Vendor URL:  www.1two.org/scripts-php/ (Links to External Site)
Cause:   Input validation error
Underlying OS:   Windows (Any)

Message History:   None.


 Source Message Contents

Date:  Tue, 10 May 2005 22:58:55 +0200
Subject:  Xss permanent dans 1Two Livre d'Or v1.0


------------------------
*1Two Livre d'Or v1.0*
------------------------

Informations :
**********
Langage : Php 4
Version : 1.0
Website : http://www.1two.org/

Problème:
-XSS permanent


Description:
***********
Script permettant d'installer un livre d'or de façon automatisée  sur votre 
site avec une partie administration.

Developpement :
*************
-XSS permanent
Les variables du formulaire d'ajout de message(Nom ou pseudo,email et 
message) du livre d'or ne sont pas correctements filtrés.Un utilisateur 
malveillant pourrait donc y injecter du script malveillant qui seras éxécuté 
sur les machines des visiteurs.

Solution:
Dans guestbook.php,aprés la ligne :
------------------------------------
[...]
<?
		if ( ($_POST['submitlivreor']=="Envoyer") and ($_POST['livreornom']!="") 
and ($_POST['livreormessage']!="") )
			{

[...]
------------------------------------

Ajoutez les lignes suivantes :

------------------------------------
$livreornom=strip_tags($livreornom);
$livreormessage=strip_tags($livreormessage);
$livreoremail=strip_tags($livreoremail);
------------------------------------

L'auteur a corrigé les problémes dans les fichiers en téléchargement.

Credits:
******
Auteur : Sylvain Thual aka An0nym0uS
E-mail : hackisknowledge@hotmail.com
Website : http://www.hackisknowledge.org
Date : 01/05/05
 
 


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