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Category:   Application (Generic)  >   Plesk Vendors:   SWsoft
Plesk Input Validation Flaws in 'get_password.php' and 'login_up.php3' Permit Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1017236
SecurityTracker URL:  http://securitytracker.com/id/1017236
CVE Reference:   CVE-2006-6451   (Links to External Site)
Updated:  Jun 2 2008
Original Entry Date:  Nov 16 2006
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information

Version(s): 8.0.1 and prior versions
Description:   David Vieira-Kurz reported a vulnerability in Plesk. A remote user can conduct cross-site scripting attacks.

The 'get_password.php' and 'login_up.php3' 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 Plesk 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 vendor was notified on November 7, 2006.

The original advisory is available at:

http://www.majorsecurity.de/index_2.php?major_rls=major_rls34

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Plesk 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.swsoft.com/en/products/plesk/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


 Source Message Contents

Subject:  Plesk 8.0.1 - Multiple Cross Site Scripting Issues

Plesk 8.0.1 - Multiple Cross Site Scripting Issues

Details
=======
Product: Plesk
Affected Version: <= 8.0.1
Security-Risk: moderated
Remote-Exploit: yes
Vendor-URL: http://www.swsoft.com/
Vendor-Status: informed
Advisory-Status: published

Credits
============
Discovered by: David Vieira-Kurz
http://www.majorsecurity.de

Original Advisory:
============
http://www.majorsecurity.de/index_2.php?major_rls=major_rls34

Introduction
============
Developed for Professional Hosting Service Providers (HSP) and Corporate 
IT Professionals,
Plesk 8.0 provides the most complete and stable set of features in the 
industry.
Plesk 8.0 provides the perfect solution for IT service providers to 
increase clientele and
customize their systems to meet their corporate customers growing needs 
for self administration.

More Details
============
Cross Site Scripting(in URL):
Input passed directly to the "get_password.php" and "login_up.php3" file 
is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a 
user's browser session in context of an affected site.

Fix
===
None known

Solution
=============
Edit the source code to ensure that input is properly sanitised.
You should work with "htmlspecialchars()" or "htmlentities()" 
php-function to ensure that html tags
are not going to be executed. Further it is recommend to set off the 
"register globals" option in the
"php.ini" on your webserver.

Example:
$pass = htmlentities($_POST['pass']);
$test = htmlspecialchars($_GET('test'));
?>

History/Timeline
================
05.11.2006 discovery of the vulnerabilities
06.11.2006 additional tests with other versions
07.11.2006 contacted the vendor
14.11.2006 advisory is written
14.11.2006 advisory released

MajorSecurity
=======
MajorSecurity is a German penetration testing and security research project
which consists of only one person at the present time.
I am looking for a sponsor.
You can find more Information on the MajorSecurity Project at
http://www.majorsecurity.de/
 
 


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