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Category:   Device (Encryption/VPN)  >   Citrix NetScaler Vendors:   Citrix
Citrix NetScaler Application Delivery Controller Input Validation Flaws Permit Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1030573
SecurityTracker URL:  http://securitytracker.com/id/1030573
CVE Reference:   CVE-2014-4346, CVE-2014-4347   (Links to External Site)
Date:  Jul 15 2014
Impact:   Disclosure of authentication 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 versions 9.3-62.4, 10.1-126.12
Description:   A vulnerability was reported in Citrix NetScaler Application Delivery Controller. A remote user can conduct cross-site scripting attacks.

The software does not properly filter HTML code from user-supplied input before displaying the input [CVE-2014-4346, CVE-2014-4347]. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Citrix NetScaler Application Delivery Controller (ADC) 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.

Stefan Viehbock of SEC Consult reported these vulnerabilities.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Citrix NetScaler ADC 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 fix (9.3-62.4, 10.1-126.12).

The vendor's advisory is available at:

http://support.citrix.com/article/CTX140863

Vendor URL:  support.citrix.com/article/CTX140863 (Links to External Site)
Cause:   Input validation error

Message History:   None.


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