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Category:   Application (Generic)  >   Microsoft Office Vendors:   Microsoft
Microsoft Office Bugs Let Remote Users Bypass Sandbox Restrictions, Spoof Web Sites, and Execute Arbitrary Code
SecurityTracker Alert ID:  1034122
SecurityTracker URL:  http://securitytracker.com/id/1034122
CVE Reference:   CVE-2015-2503, CVE-2015-6038, CVE-2015-6091, CVE-2015-6092, CVE-2015-6093, CVE-2015-6094, CVE-2015-6123   (Links to External Site)
Date:  Nov 10 2015
Impact:   Execution of arbitrary code via network, Modification of system information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2007, 2010, 2013, 2016; Office for Mac 2010, Office 2016 for Mac; Office Web Apps 2010, 2013
Description:   Multiple vulnerabilities were reported in Microsoft Office. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can bypass security controls on the target system. A remote user can spoof web sites.

A remote user can create a specially crafted application that, when loaded by the target user, will trigger a flaw in the instantiation of Office applications via COM controls to gain elevated privileges and bypass of the Internet Explorer sandbox [CVE-2015-2503].

A remote user can create a specially crafted file that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system [CVE-2015-6038, CVE-2015-6091, CVE-2015-6092, CVE-2015-6093, CVE-2015-6094]. The code will run with the privileges of the target user.

A remote user can spoof web sites and cause the target user's client to be redirected to an arbitrary site [CVE-2015-6123]. Outlook for Mac is affected.

Steven Seeley of Source Incite (via HP's Zero Day Initiative), Steven Vittitoe of Google Project Zero, SignalSEC Research (via HP's Zero Day Initiative), and Mark Robbins Rebelmail reported these vulnerabilities.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.

A remote user can bypass sandbox controls on the target system.

A remote user can spoof web sites.

Solution:   The vendor has issued a fix.

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms15-116

Vendor URL:  technet.microsoft.com/library/security/ms15-116 (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Windows (Any)

Message History:   None.


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