Microsoft Windows up to Server 2016 information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Microsoft Windows up to Server 2016. The affected element is an unknown function. The manipulation results in information disclosure. This vulnerability was named CVE-2017-11831. The attack needs to be approached locally. In addition, an exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Microsoft Windows up to Server 2016 (Operating System). Affected is an unknown function. 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 11/14/2017. The weakness was presented 11/14/2017 by Mateusz Jurczyk with Google Project Zero as KB4048957 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability is traded as CVE-2017-11831 since 07/31/2017. The exploitability is told to be difficult. The attack needs to be approached locally. The successful exploitation requires a authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

An information disclosure vulnerability exists when the Windows kernel fails to properly initialize a memory address. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 104553 (Windows 7 and Windows Server 2008 R2 November 2017 Security Updates), 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 91414 (Microsoft Windows Security Update November 2017).

Applying the patch KB4048957 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 Exploit-DB (43165), Tenable (104553) and SecurityFocus (BID 101721†). See VDB-109357, VDB-109360, VDB-109367 and VDB-109369 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.9

VulDB Base Score: 2.5
VulDB Temp Score: 2.3
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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104553
Nessus Name: Windows 7 and Windows Server 2008 R2 November 2017 Security Updates
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801514
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4048957)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: KB4048957

Timelineinfo

07/31/2017 🔍
11/14/2017 +106 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/14/2017 +0 days 🔍
11/15/2017 +1 days 🔍
01/23/2021 +1165 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB4048957
Researcher: Mateusz Jurczyk
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-11831 (🔍)
GCVE (CVE): GCVE-0-2017-11831
GCVE (VulDB): GCVE-100-109368

OVAL: 🔍

SecurityFocus: 101721 - Microsoft Windows Kernel CVE-2017-11831 Local Information Disclosure Vulnerability
SecurityTracker: 1039782

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

Entryinfo

Created: 11/15/2017 10:33
Updated: 01/23/2021 14:46
Changes: 11/15/2017 10:33 (89), 12/06/2019 10:37 (10), 01/23/2021 14:46 (3)
Complete: 🔍
Cache ID: 216::103

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