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Category:   Application (Generic)  >   Bug Report Vendors:   Fichot, Eric
Bug Report Input Validation Hole in 'bug_report.php' Lets Remote Users Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1013957
SecurityTracker URL:  http://securitytracker.com/id/1013957
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  May 12 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  Exploit Included:  Yes  
Version(s): 1.0
Description:   Sylvain Thual (An0nym0uS) reported a vulnerability in Bug Report. A remote user can conduct cross-site scripting attacks.

The 'bug_report.php' script does not properly validate user-supplied input. A remote user can submit specially crafted form values that, when viewed by a target user via 'bug_list.php' or 'admin/index.php', will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Bug Report 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.

The name, sujet, commentaires, os, navig, and url fields are affected.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the vulnerable 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:   No solution was available at the time of this entry.
Vendor URL:  e.fichot.free.fr/index.php?p=scripts (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  Xss permanent dans Bug Report v1.0


------------------
*Bug Report v1.0*
------------------

Informations :
**************
Langage : PHP 4
Version : 1.0
Website : http://e.fichot.free.fr/demo/

**********
-Xss permanent

Description :
****************
Developpement :
****************
Le contenu des champs du formulaire du fichier bug_report.php ne sont pas 

et rajoutez les lignes suivantes pour filtrer correctement les variables:

-------------------------------------
[...]
$name = strip_tags($name);
$sujet = strip_tags($sujet);
$commentaires = strip_tags($commentaires);
$os = strip_tags($os);
$navig = strip_tags($navig);
$url = strip_tags($url);
[...]
-------------------------------------

Credits:
********
Auteur : Sylvain Thual aka An0nym0uS
E-mail : hackisknowledge@hotmail.com
Website : http://www.hackisknowledge.org/
Date : 08/05/04
 
 


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