Microsoft Windows Secure Boot Bug in Loading Boot Managers Lets Local Users
|
|
SecurityTracker Alert ID: 1036573 |
|
SecurityTracker URL: http://securitytracker.com/id/1036573
|
|
CVE Reference:
CVE-2016-3320
(Links to External Site)
|
Date: Aug 9 2016
|
Impact:
Execution of arbitrary code via local system, Root access via local system
|
Fix Available: Yes Vendor Confirmed: Yes
|
Version(s): 8.1, RT 8.1, 2012 R2, 10, 10 Version 1511
|
Description:
A vulnerability was reported in Microsoft Windows Secure Boot. A local user can bypass security restrictions.
A local administrative user or a physically local user can cause Windows Secure Boot to load a vulnerable boot manager and bypass Secure Boot Integrity Validation for BitLocker and Device Encryption security integrity checks. As a result, test-signed executable code and drivers can be loaded on the target system.
|
Impact:
A local user can bypass security controls to load test-signed executable code and drivers on the target system.
|
Solution:
The vendor has issued a fix.
Windows 8.1 for 32-bit Systems:
https://www.microsoft.com/downloads/details.aspx?familyid=19c5ba0d-de7b-41af-8db3-76d1ff6f79b2
Windows 8.1 for x64-based Systems:
https://www.microsoft.com/downloads/details.aspx?familyid=e0aedb91-f808-4ae8-86f4-46015f6b7c0b
Windows Server 2012:
https://www.microsoft.com/downloads/details.aspx?familyid=224b85dd-5caf-4c9f-852f-88f2542f9a94
Windows Server 2012 R2:
https://www.microsoft.com/downloads/details.aspx?familyid=14f74104-ff9e-4fe6-8bd0-2b749afb3171
Fixes are also available for Windows 10.
The Microsoft advisory is available at:
https://technet.microsoft.com/library/security/ms16-100
|
Vendor URL: technet.microsoft.com/library/security/ms16-100 (Links to External Site)
|
Cause:
Access control error
|
|
Message History:
None.
|
Source Message Contents
|
|
|
[Original Message Not Available for Viewing]
|
|
