Microsoft Windows up to Server 2016 Kernel information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Microsoft Windows up to Server 2016. This affects an unknown part of the component Kernel. This manipulation causes information disclosure. This vulnerability is registered as CVE-2017-11817. The attack needs to be launched locally. No exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in Microsoft Windows up to Server 2016 (Operating System) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component Kernel. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality.

The bug was discovered 10/10/2017. The weakness was published 10/10/2017 as KB4041690 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is known as CVE-2017-11817 since 07/31/2017. The exploitation appears to be difficult. An attack has to be approached locally. A single authentication is required for exploitation. 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 the Windows kernel improperly initializes objects in memory.

The vulnerability scanner Nessus provides a plugin with the ID 103745 (KB4041676: Windows 10 Version 1703 October 2017 Cumulative Update (KRACK)), 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 91411 (Microsoft Windows Security Update October 2017 (KRACK Attack) (ROCA)).

Applying the patch KB4041690 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 (103745) and SecurityFocus (BID 101095†). Similar entries are available at VDB-107699, VDB-107701, VDB-107702 and VDB-107704. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 4.7
Vendor Vector (Microsoft): 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

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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: 103745
Nessus Name: KB4041676: Windows 10 Version 1703 October 2017 Cumulative Update (KRACK)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4042895)
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: KB4041690

Timelineinfo

07/31/2017 🔍
10/10/2017 +70 days 🔍
10/10/2017 +0 days 🔍
10/10/2017 +0 days 🔍
10/10/2017 +0 days 🔍
10/10/2017 +0 days 🔍
10/11/2017 +1 days 🔍
10/13/2017 +2 days 🔍
09/10/2024 +2524 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB4041690
Researcher: Mateusz Jurczyk
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-11817 (🔍)
GCVE (CVE): GCVE-0-2017-11817
GCVE (VulDB): GCVE-100-107725

OVAL: 🔍

SecurityFocus: 101095
SecurityTracker: 1039526

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

Entryinfo

Created: 10/11/2017 23:38
Updated: 09/10/2024 15:37
Changes: 10/11/2017 23:38 (85), 11/23/2019 17:27 (3), 01/16/2021 12:33 (3), 01/16/2021 12:37 (3), 09/10/2024 15:37 (17)
Complete: 🔍
Cache ID: 216::103

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