Microsoft Windows up to Server 2016 Secure Boot access control

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Windows up to Server 2016 and classified as problematic. This affects an unknown part of the component Secure Boot. The manipulation leads to access control. This vulnerability is referenced as CVE-2016-7247. The attack can only be performed from a local environment. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows up to Server 2016 (Operating System) and classified as problematic. This issue affects an unknown part of the component Secure Boot. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability.

The weakness was published 11/08/2016 as MS16-140 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. The identification of this vulnerability is CVE-2016-7247. The exploitation is known to be easy. An attack has to be approached locally. A simple authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 94641 (MS16-140: Security Update for Boot Manager (3193479)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91295 (Microsoft Boot Manager Security Bypass Vulnerability (MS16-140)).

Applying the patch MS16-140 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (94641) and SecurityFocus (BID 94058†). Similar entries are available at VDB-93424, VDB-93421, VDB-93422 and VDB-93423. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94641
Nessus Name: MS16-140: Security Update for Boot Manager (3193479)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 830761
OpenVAS Name: Microsoft Boot Manager Security Feature Bypass Vulnerability (3193479)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS16-140

Timelineinfo

09/09/2016 🔍
11/08/2016 +60 days 🔍
11/08/2016 +0 days 🔍
11/09/2016 +1 days 🔍
11/10/2016 +1 days 🔍
09/23/2024 +2874 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS16-140
Status: Confirmed

CVE: CVE-2016-7247 (🔍)
GCVE (CVE): GCVE-0-2016-7247
GCVE (VulDB): GCVE-100-93425

OVAL: 🔍

SecurityFocus: 94058
SecurityTracker: 1037255

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 11/09/2016 10:55
Updated: 09/23/2024 11:58
Changes: 11/09/2016 10:55 (44), 04/07/2017 16:05 (18), 09/30/2022 09:42 (4), 09/30/2022 09:46 (11), 09/30/2022 09:51 (1), 09/23/2024 11:58 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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