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Category:   Application (Firewall)  >   KerioControl (WinRoute Firewall) Vendors:   Kerio Technologies
KerioControl Input Validation and Access Control Flaws Let Remote Users Conduct Cross-Site Request Forgery, Cross-Site Scripting, and SQL Injection Attacks and Remote Authenticated Users Execute Arbitrary Code
SecurityTracker Alert ID:  1033807
SecurityTracker URL:  http://securitytracker.com/id/1033807
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Oct 14 2015
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, Root access via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 8.6.1 and prior
Description:   Several vulnerabilities were reported in KerioControl. A remote user can conduct cross-site request forgery attacks. A remote user can inject SQL commands. A remote user can conduct cross-site scripting attacks. A remote authenticated user can execute arbitrary code on the target system.

A remote user can create a specially crafted HTML page or URL that, when loaded by the target authenticated administrative user, will take actions on the target interface acting as the target administrative user.

The 'report.php' script does not properly validate user-supplied input. A remote user can supply a specially crafted parameter value to execute SQL commands on the underlying database.

The 'nonauth/certificate.php' script does not properly filter HTML code from user-supplied input in the 'server' parameter before displaying the input. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the KerioControl interface 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 remote authenticated user can use the upgrade function and rename the '.tar' file extension to '.img' to upload arbitrary code that can later be executed with root privileges.

A demonstration exploit video is available at:

https://youtu.be/EzTI2WlGHb4

Raschin Tavakoli of IntelliSec GmbH reported this vulnerability.

Impact:   A remote user can take actions on the target system acting as the target authenticated user.

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 KerioControl interface, 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 remote authenticated user can execute arbitrary code on the target system.

Solution:   The vendor has issued a fix (8.6.2).

[Editor's note: The file upload remote code execution vulnerability is not fixed in this version.]

The vendor's advisory is available at:

http://www.kerio.com/support/kerio-control/release-history

Vendor URL:  www.kerio.com/support/kerio-control/release-history (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   None.


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