Microsoft Windows Vista SP2 up to Server 2012 R2 Kernel-Mode Driver win32k.sys information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows Vista SP2 up to Server 2012 R2. It has been rated as problematic. This affects an unknown part in the library win32k.sys of the component Kernel-Mode Driver. This manipulation causes information disclosure. This vulnerability is tracked as CVE-2016-3251. The attack is restricted to local execution. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic was found in Microsoft Windows Vista SP2 up to Server 2012 R2 (Operating System). Affected by this vulnerability is an unknown function in the library win32k.sys of the component Kernel-Mode Driver. 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 weakness was disclosed 07/12/2016 as MS16-090 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is known as CVE-2016-3251 since 03/15/2016. The exploitation appears to be easy. Attacking locally is a requirement. The successful exploitation requires a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 92021 (MS16-090: Security Update for Windows Kernel-Mode Drivers (3171481)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91253 (Microsoft Windows Security Update for Windows Kernel-Mode Drivers (MS16-090)).

Applying the patch MS16-090 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (92021). The entries VDB-89045, VDB-89046, VDB-89048 and VDB-89049 are pretty similar. Be aware that VulDB is the high quality 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: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 2.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92021
Nessus Name: MS16-090: Security Update for Windows Kernel-Mode Drivers (3171481)
Nessus File: 🔍
Nessus Family: 🔍

OpenVAS ID: 863827
OpenVAS Name: Microsoft Kernel-Mode Drivers Multiple Privilege Elevation Vulnerabilities (3171481)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: MS16-090

Timelineinfo

03/15/2016 🔍
07/12/2016 +119 days 🔍
07/12/2016 +0 days 🔍
07/12/2016 +0 days 🔍
07/13/2016 +1 days 🔍
09/01/2022 +2241 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS16-090
Status: Confirmed

CVE: CVE-2016-3251 (🔍)
GCVE (CVE): GCVE-0-2016-3251
GCVE (VulDB): GCVE-100-89047
SecurityTracker: 1036288

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

Entryinfo

Created: 07/13/2016 10:21
Updated: 09/01/2022 19:10
Changes: 07/13/2016 10:21 (66), 04/07/2017 16:05 (9), 09/01/2022 19:10 (3)
Complete: 🔍
Cache ID: 216::103

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