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
(Links to External Site)
Updated: Jun 2 2008|
Original Entry Date: Nov 16 2006
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|
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:
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.|
No solution was available at the time of this entry.|
Vendor URL: www.swsoft.com/en/products/plesk/ (Links to External Site)
Input validation error|
|Underlying OS: Linux (Any), UNIX (Any)|
Source Message Contents
Subject: Plesk 8.0.1 - Multiple Cross Site Scripting Issues|
Plesk 8.0.1 - Multiple Cross Site Scripting Issues
Affected Version: <= 8.0.1
Discovered by: David Vieira-Kurz
Developed for Professional Hosting Service Providers (HSP) and Corporate
Plesk 8.0 provides the most complete and stable set of features in the
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.
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.
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.
$pass = htmlentities($_POST['pass']);
$test = htmlspecialchars($_GET('test'));
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
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