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Category:   Application (File Transfer/Sharing)  >   DownFile Vendors:   Fichot, Eric
DownFile Grants Administrative Access to Remote Users and Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1014827
SecurityTracker URL:  http://securitytracker.com/id/1014827
CVE Reference:   CVE-2005-2818, CVE-2005-2819   (Links to External Site)
Updated:  Jun 8 2008
Original Entry Date:  Aug 31 2005
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
Exploit Included:  Yes  
Version(s): 1.3
Description:   benozor77 reported a vulnerability was in DownFile. A remote user can gain administrative access on the target application. A remote user can also conduct cross-site scripting attacks.

Certain administrative scripts do not properly authenticate remote users. A remote user can directly access the update.php, del.php, and add_form.php administrative scripts to gain administrative access on the application.

Several scripts do not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded 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 DownFile 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 'id' parameter in the email.php, index.php, and del.php scripts are affected.

Some demonstration exploit URLs are provided:

http://[target]/downfile/email.php?id=%22%3E%3Cscript%3Ealert(navigator.appVersion)%3C/script%3E/

http://[target]/downfile/admin/del.php?id=%22%3E%3Cscript%3Ealert(navigator.appVersion)%3C/script%3E/

The 'mode' parameter in add_form.php is also affected.

A demonstration exploit URL is provided:

http://[target]/downfile/admin/add_form.php?id=%22%3E%3Cscript%3Ealert(navigator.appVersion)%3C/script%3E/

Impact:   A remote user can gain administrative access on the target application.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the DownFile 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:  www.ericfichot.tk/ (Links to External Site)
Cause:   Authentication error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  DownFile 1.3

Bonjour/Bonsoir,

                                                                                
                ________________
                 |  DownFile 1.3  |
                 |________________|


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

publique qui affiche la liste des fichiers, leur date d'ajout, et le nombre de


************************************
Informations:

Version : 1.3
Site Web de l'auteur du script: http://www.ericfichot.tk/


**************************
Multiples failles XSS:

email.php:
Il existe une faille de type xss non-permanent dans la variable "id" du fichier
email.php


Exemple:
http://www.sitevuln.com/downfile/email.php?id=%22%3E%3Cscript%3Ealert(navigator.appVersion)%3C/script%3E/

index.php:
Il existe une faille de type xss non-permanent dans la variable "id" du fichier
index.php

Dans la partie administration:

del.php:
Il existe une faille de type xss non-permanent dans la variable "id" du fichier
del.php

Exemple:
http://www.sitevuln.com/downfile/admin/del.php?id=%22%3E%3Cscript%3Ealert(navigator.appVersion)%3C/script%3E/

add_form.php:
Il existe une faille de type xss non-permanent dans la variable "mode" du
fichier add_form.php

Exemple:
http://www.sitevuln.com/downfile/admin/add_form.php?id=%22%3E%3Cscript%3Ealert(navigator.appVersion)%3C/script%3E/


***************************
suppression et d'addition de fichiers en sachant l'adresse des fichiers
update.php, del.php et add_form.php.


*********
Auteur: benozor77
Contact: webmaster@hackologie.tk
Site Web: http://www.hackologie.tk/
Date: 31/08/2005
 
 


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