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Category:   Device (Embedded Server/Appliance)  >   Symantec Web Gateway Vendors:   Symantec
Symantec Web Gateway Input Validation Flaw in Management Console Lets Remote Users Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1037987
SecurityTracker URL:  http://securitytracker.com/id/1037987
CVE Reference:   CVE-2016-9096   (Links to External Site)
Date:  Mar 14 2017
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 5.2.7
Description:   A vulnerability was reported in Symantec Web Gateway. A remote user can conduct cross-site scripting attacks.

The management console does 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 Symantec Web Gateway management console 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.

Sanehdeep Singh reported this vulnerability.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Symantec Web Gateway management console 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 (5.2.7).

The vendor advisory is available at:

https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170313_00

Vendor URL:  www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170313_00 (Links to External Site)
Cause:   Input validation error

Message History:   None.


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