Microsoft Windows 10 1703 Control Flow Guard 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Microsoft Windows 10 1703. This affects an unknown function of the component Control Flow Guard. Executing a manipulation can lead to 7pk security. This vulnerability is registered as CVE-2017-8716. The attack needs to be launched locally. No exploit is available. It is best practice to apply a patch to resolve this issue. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability has been found in Microsoft Windows 10 1703 (Operating System) and classified as problematic. This vulnerability affects an unknown code block of the component Control Flow Guard. The manipulation with an unknown input leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Windows Control Flow Guard in Microsoft Windows 10 Version 1703 allows an attacker to run a specially crafted application to bypass Control Flow Guard, due to the way that Control Flow Guard handles objects in memory, aka "Windows Security Feature Bypass Vulnerability".

The bug was discovered 09/12/2017. The weakness was published 09/12/2017 as KB4038788 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability was named CVE-2017-8716 since 05/03/2017. The exploitation appears to be difficult. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1211 by the MITRE ATT&CK project. The advisory points out:

A security feature bypass vulnerability exists when Windows Control Flow Guard mishandles objects in memory.

The vulnerability scanner Nessus provides a plugin with the ID 103130 (KB4038788: Windows 10 Version 1703 September 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 91408 (Microsoft Windows Security Update September 2017).

Applying the patch KB4038788 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 (103130) and SecurityFocus (BID 100802†). Similar entries are available at VDB-106501, VDB-106456, VDB-106471 and VDB-106478. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 4.9
Vendor Vector (Microsoft): 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: 7pk security
CWE: CWE-254
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: 103130
Nessus Name: KB4038788: Windows 10 Version 1703 September 2017 Cumulative Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Multiple Vulnerabilites (KB4038788)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: KB4038788

Timelineinfo

05/03/2017 🔍
09/12/2017 +131 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/13/2017 +1 days 🔍
10/07/2024 +2581 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB4038788
Researcher: Zhang Yunhai
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8716 (🔍)
GCVE (CVE): GCVE-0-2017-8716
GCVE (VulDB): GCVE-100-106510

OVAL: 🔍

SecurityFocus: 100802
SecurityTracker: 1039325

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

Entryinfo

Created: 09/13/2017 02:24 PM
Updated: 10/07/2024 08:22 PM
Changes: 09/13/2017 02:24 PM (80), 11/15/2019 03:17 PM (9), 01/12/2021 09:22 AM (2), 01/12/2021 09:24 AM (3), 10/07/2024 08:22 PM (17)
Complete: 🔍
Cache ID: 244:5B4:40

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