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Category:   Application (Forum/Board/Portal)  >   Books Module for PostNuke (pn-mod-books) Vendors:   pn-mod-books.sourceforge.net
Books Module for PostNuke Input Validation Bug Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1005372
SecurityTracker URL:  http://securitytracker.com/id/1005372
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Oct 8 2002
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Exploit Included:  Yes  
Version(s): 0.54, 0.6
Description:   An input validation vulnerability was reported in the Books Module for PostNuke. A remote user can conduct cross-site scripting attacks against web site users.

It is reported that the Books Module (pn-mod-books) does not properly filter user-supplied 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 PostNuke (with the Books Module) 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.

A demonstration exploit URL is provided:

http://servernuke/modules.php?op=modload&name=books&file=index&req=search&query=|script|alert(document.cookie)|/script|

The vendor has reportedly been notified.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running PostNuke (with the Books Module), 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:  pn-mod-books.sourceforge.net/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  The Books Module for the PostNuke CMS XSS Vulnerability


- ----------------------------------------------------
Class :         input Validation Error

Risk :            Due to the simplicity of the attack and the number of sites
                   that run module books the risk is classified as Medium to  
                   High.

URL:             Http://pn-mod-books.sourceforge.net
- ----------------------------------------------------
This Books module version v0.54 is running as a Mutant (PN 0.64) 
This Books module version v0.6  is running as a Rogue (PN 0.7)
- ----------------------------------------------------

Exploit:
       
http://servernuke/modules.php?op=modload&name=books&file=index&req=search&query=|script|alert(document.cookie)|/script|

Change | x <>


- -------------------------------------------------------
Programmer of Books module receives a copy this report.
- --------------------------------------------------------


Salu2

Pistone
- - --------
Http://www.gauchohack.com.ar
Http://www.hackindex.org


 
 


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