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Category:   Application (VoIP)  >   Microsoft Skype for Business Vendors:   Skype Technologies
Microsoft Skype for Business Lets Remote Users Bypass Sandbox Restrictions on the Target System
SecurityTracker Alert ID:  1034117
SecurityTracker URL:  http://securitytracker.com/id/1034117
CVE Reference:   CVE-2015-2503   (Links to External Site)
Updated:  Nov 10 2015
Original Entry Date:  Nov 10 2015
Impact:   Disclosure of system information, Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Skype for Business 2016
Description:   A vulnerability was reported in Microsoft Skype for Business. A remote user can bypass security controls on the target system.

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.

Impact:   A remote user can bypass the sandbox restrictions of Internet Explorer.
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
Underlying OS:  Windows (Any)

Message History:   None.


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