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Category:   Application (Forum/Board/Portal)  >   Contrexx Vendors:   ASTALAVISTA IT Engineering GmbH
Contrexx Input Validation Holes Permit SQL Injection and Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1014554
SecurityTracker URL:  http://securitytracker.com/id/1014554
CVE Reference:   CVE-2005-2415, CVE-2005-2416, CVE-2005-2417   (Links to External Site)
Updated:  Jul 6 2008
Original Entry Date:  Jul 22 2005
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.0.5
Description:   Several vulnerabilities were reported in Contrexx. A remote user can inject SQL commands. A remote user can conduct cross-site scripting attacks. A remote user can also obtain version information.

Several scripts do not properly validate user-supplied input. A remote user can supply specially crafted parameter values to execute SQL commands on the underlying database.

The poll module and the 'pId' parameter of the gallery module is affected.

Some demonstration exploit values for the poll module 'votingoption' parameter are provided:

value="1 /*!50030%20s*/"

value="123 UNION/**/ SELECT/**/ '1 OR 1=1'"

A demonstration exploit URL for the gallery module is provided:

/index.php?section=gallery&cmd=showCat&cid=41&pId=1%20/**/UNION/**/%20
/**/SELECT/**/%201,1,CONCAT(username,'-',password),1,1,1%20/**/FROM%20
contrexx_access_users

The search form does not properly filter HTML code from 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 the Contrexx 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.

A demonstration exploit URL is provided:

/index.php?section=search&term=%22%3E%3Cscr\ipt%3Ealert(%22xss%22)%3C/sc\ript%3E

The 'title' field in the blog aggregation module is also affected.

A remote user can directly access the 'config/version.xml' file to determine the Contrexx version number.

The vendor was notified on July 8, 2005 and July 10, 2005.

The original advisory is available at:

http://www.hardened-php.net/advisory_112005.59.html

Christopher Kunz of the Hardened PHP Project reported this vulnerability.

Impact:   A remote user can execute SQL commands on the underlying database.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Contrexx 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 issued a fixed version (1.0.5).
Vendor URL:  www.contrexx.com/ (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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