Microsoft Windows Server 2012/Server 2012 R2 Virtual PCI Memory information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Microsoft Windows Server 2012/Server 2012 R2. Affected is an unknown function of the component Virtual PCI. Such manipulation leads to information disclosure (Memory). This vulnerability is traded as CVE-2016-3232. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows Server 2012/Server 2012 R2 (Operating System) and classified as problematic. Affected by this issue is an unknown part of the component Virtual PCI. The manipulation with an unknown input leads to a information disclosure vulnerability (Memory). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The weakness was shared 06/14/2016 as MS16-073 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability is handled as CVE-2016-3232 since 03/15/2016. The exploitation is known to be easy. The attack may be launched remotely. A simple authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

An information disclosure vulnerability exists when the Windows Virtual PCI (VPCI) virtual service provider (VSP) fails to properly handle uninitialized memory. An attacker who successfully exploited this vulnerability could potentially disclose contents of memory to which they should not have access.

The vulnerability scanner Nessus provides a plugin with the ID 91601 (MS16-073: Security Update for Windows Kernel-Mode Drivers (3164028)), 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 91236 (Microsoft Windows Kernel Mode Drivers Elevation of Privilege Vulnerabilities (MS16-073)). The advisory illustrates:

To exploit the vulnerability, an attacker would first have to log on to the target system. An attacker could then run a specially crafted application that could exploit the vulnerability. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. The update addresses the vulnerability by correcting VPCI memory handling.

Applying the patch MS16-073 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 databases at Tenable (91601) and SecurityFocus (BID 91121†). The entries VDB-87942 and VDB-87943 are related to this item. 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: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91601
Nessus Name: MS16-073: Security Update for Windows Kernel-Mode Drivers (3164028)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802074
OpenVAS Name: Microsoft Kernel-Mode Drivers Privilege Elevation Vulnerabilities (3164028)
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: MS16-073

Timelineinfo

03/15/2016 🔍
06/14/2016 +91 days 🔍
06/14/2016 +0 days 🔍
06/14/2016 +0 days 🔍
06/15/2016 +1 days 🔍
06/16/2016 +1 days 🔍
08/23/2022 +2259 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS16-073
Status: Confirmed

CVE: CVE-2016-3232 (🔍)
GCVE (CVE): GCVE-0-2016-3232
GCVE (VulDB): GCVE-100-87944

OVAL: 🔍

SecurityFocus: 91121
SecurityTracker: 1036109

See also: 🔍

Entryinfo

Created: 06/16/2016 16:38
Updated: 08/23/2022 18:56
Changes: 06/16/2016 16:38 (79), 01/25/2019 11:02 (2), 08/23/2022 18:56 (5)
Complete: 🔍
Cache ID: 216:5B8:103

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