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Category:   Device (Embedded Server/Appliance)  >   Symantec Web Gateway Vendors:   Symantec
Symantec Web Gateway Multiple Flaws Let Remote Users Conduct Cross-Site Scripting Attacks and Remote Authenticated Users Upload Files, Inject SQL Commands, and Execute Arbitrary Code
SecurityTracker Alert ID:  1033625
SecurityTracker URL:  http://securitytracker.com/id/1033625
CVE Reference:   CVE-2015-5690, CVE-2015-5691, CVE-2015-5692, CVE-2015-5693, CVE-2015-6547, CVE-2015-6548   (Links to External Site)
Date:  Sep 22 2015
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2014 (15.2.2) (2014.2.2) and prior
Description:   Multiple vulnerabilities were reported in Symantec Web Gateway. A remote authenticated user can upload files to the target system. A remote authenticated user can execute arbitrary commands on the target system. A remote authenticated user can inject SQL commands. A remote user can conduct cross-site scripting attacks.

A remote authenticated less-privileged user user can supply a specially crafted parameter value to execute SQL commands on the underlying database [CVE-2015-6548].

The interface does not properly filter HTML code from user-supplied input before displaying the input [CVE-2015-5691]. 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 Symantec Web Gateway 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 privileged user can send specially crafted data to execute arbitrary code on the target system [CVE-2015-5693, CVE-2015-6547].

A remote authenticated less-privileged user can upload arbitrary code that will be subsequently executed by management console application scripts [CVE-2015-5692].

A remote authenticated less-privileged user can bypass authorization checks to inject arbitrary commands [CVE-2015-5690].

Jos Wetzels (LeakFree Security) and an anonymous researcher (via HP's Zero Day Initiative) reported these vulnerabilities.

Impact:   A remote authenticated user can upload files to the target system.

A remote authenticated user can execute arbitrary commands on the target system.

A remote authenticated 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 Symantec Web Gateway interface, access data recently submitted by the target user via web form to the interface, or take actions on the interface acting as the target user.

Solution:   The vendor has issued a fix (DB Update v5.0.0.1277).

The vendor's advisory is available at:

http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20150916_00

Vendor URL:  www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20150916_00 (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   None.


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