Microsoft Windows up to Server 2016 Hyper-V information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows up to Server 2016. It has been rated as problematic. This affects an unknown function of the component Hyper-V. Performing a manipulation results in information disclosure. This vulnerability is known as CVE-2018-0957. Attacking locally is a requirement. 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). It has been classified as problematic. This affects an unknown function of the component Hyper-V. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality.

The bug was discovered 04/10/2018. The weakness was published 04/10/2018 with Microsoft as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2018-0957 since 12/01/2017. The exploitability is told to be difficult. An attack has to be approached locally. The exploitation requires an enhanced level of successful authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker on a guest operating system could run a specially crafted application that could cause the Hyper-V host operating system to disclose memory information.

The vulnerability scanner Nessus provides a plugin with the ID 108965 (KB4093115: Windows 8.1 and Windows Server 2012 R2 April 2018 Security 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 91441 (Microsoft Windows Security Update April 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 (108965) and SecurityFocus (BID 103628†). Similar entries are available at VDB-115990, VDB-115993, VDB-115995 and VDB-115997. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

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: 2.5
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.2
Vendor Vector (Microsoft): 🔍

NVD Base Score: 5.3
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 108965
Nessus Name: KB4093115: Windows 8.1 and Windows Server 2012 R2 April 2018 Security Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 61287
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4093111)
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: 🔍

Timelineinfo

12/01/2017 🔍
04/10/2018 +130 days 🔍
04/10/2018 +0 days 🔍
04/10/2018 +0 days 🔍
04/10/2018 +0 days 🔍
04/10/2018 +0 days 🔍
04/11/2018 +0 days 🔍
04/11/2018 +0 days 🔍
02/09/2021 +1035 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: Microsoft
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0957 (🔍)
GCVE (CVE): GCVE-0-2018-0957
GCVE (VulDB): GCVE-100-116025

OVAL: 🔍

SecurityFocus: 103628 - Microsoft Windows Hyper-V CVE-2018-0957 Information Disclosure Vulnerability
SecurityTracker: 1040662

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

Entryinfo

Created: 04/11/2018 14:46
Updated: 02/09/2021 13:43
Changes: 04/11/2018 14:46 (85), 01/24/2020 08:36 (6), 02/09/2021 13:40 (3), 02/09/2021 13:43 (1)
Complete: 🔍
Cache ID: 216::103

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

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