Microsoft Windows up to Server 2016 Hypervisor access control

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Windows up to Server 2016. The impacted element is an unknown function of the component Hypervisor. The manipulation leads to access control. This vulnerability is referenced as CVE-2017-0193. The attack can only be performed from a local environment. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows up to Server 2016 (Operating System). This issue affects some unknown processing of the component Hypervisor. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability.

The weakness was published 06/13/2017 with Microsoft as KB3217845 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2017-0193 since 09/09/2016. The exploitation is known to be difficult. Attacking locally is a requirement. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/27/2020). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:

An elevation of privilege vulnerability exists when Windows Hyper-V instruction emulation fails to properly enforce privilege levels. An attacker who successfully exploited this vulnerability could gain elevated privileges on a target guest operating system. The host operating system is not vulnerable to this attack.

The vulnerability scanner Nessus provides a plugin with the ID 100759 (KB4022714: Windows 10 Version 1511 June 2017 Cumulative Update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91385 (Microsoft Windows Security Update June 2017).

Applying the patch KB3217845 is able to eliminate this problem. The bugfix is ready for download at catalog.update.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 (100759) and SecurityFocus (BID 98878†). Similar entries are available at VDB-102373, VDB-102374, VDB-102375 and VDB-102376. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔍

NVD Base Score: 7.8
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-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100759
Nessus Name: KB4022714: Windows 10 Version 1511 June 2017 Cumulative Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Multiple Vulnerabilites (KB4022719)
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: KB3217845

Timelineinfo

09/09/2016 🔍
06/13/2017 +277 days 🔍
06/13/2017 +0 days 🔍
06/13/2017 +0 days 🔍
06/13/2017 +0 days 🔍
06/14/2017 +1 days 🔍
06/14/2017 +0 days 🔍
12/27/2020 +1292 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB3217845
Researcher: Microsoft
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-0193 (🔍)
GCVE (CVE): GCVE-0-2017-0193
GCVE (VulDB): GCVE-100-102395

OVAL: 🔍

SecurityFocus: 98878 - Microsoft Windows Hyper-V CVE-2017-0193 Local Privilege Escalation Vulnerability
SecurityTracker: 1038670

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

Entryinfo

Created: 06/14/2017 10:49
Updated: 12/27/2020 18:10
Changes: 06/14/2017 10:49 (90), 10/17/2019 11:06 (5), 12/27/2020 18:08 (3), 12/27/2020 18:10 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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