Microsoft Windows 10 1709/10 1803/Server 1709/Server 1803 Graphics access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows 10 1709/10 1803/Server 1709/Server 1803 and classified as critical. Affected by this issue is some unknown functionality of the component Graphics. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2018-8400. Local access is required to approach this attack. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows 10 1709/10 1803/Server 1709/Server 1803 (Operating System) and classified as critical. Affected by this issue is an unknown code of the component Graphics. 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 bug was discovered 08/14/2018. The weakness was disclosed 08/14/2018 with Zero Day Initiative as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2018-8400 since 03/14/2018. Local access is required to approach this attack. A simple authentication is needed for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project. The advisory points out:

An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

The vulnerability scanner Nessus provides a plugin with the ID 111687 (KB4343897: Windows 10 Version 1709 And Windows Server Version 1709 August 2018 Security Update (Foreshadow)), 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 91465 (Microsoft Windows Security Update August 2018).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111687) and SecurityFocus (BID 105005†). The entries VDB-122825, VDB-122834, VDB-122840 and VDB-122847 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

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

Vendor Base Score (Microsoft): 7.0
Vendor Vector (Microsoft): 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 111687
Nessus Name: KB4343897: Windows 10 Version 1709 And Windows Server Version 1709 August 2018 Security Update (Foreshadow)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

03/14/2018 🔍
08/14/2018 +152 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/15/2018 +0 days 🔍
05/02/2023 +1721 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: portal.msrc.microsoft.com
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-8400 (🔍)
GCVE (CVE): GCVE-0-2018-8400
GCVE (VulDB): GCVE-100-122882

OVAL: 🔍

SecurityFocus: 105005 - Microsoft Windows DirectX Graphics Kernel CVE-2018-8400 Local Privilege Escalation Vulnerability
SecurityTracker: 1041461

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

Entryinfo

Created: 08/14/2018 21:56
Updated: 05/02/2023 08:33
Changes: 08/14/2018 21:56 (86), 03/15/2020 15:47 (6), 05/02/2023 08:33 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!