Microsoft Windows Vista SP2 up to Server 2012 R2 win32k.sys access control

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability was found in Microsoft Windows Vista SP2 up to Server 2012 R2 (Operating System). It has been classified as critical. This affects an unknown function in the library win32k.sys. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 10/11/2016 by James Forshaw with Google Project Zero as MS16-123 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. This vulnerability is uniquely identified as CVE-2016-7185 since 09/09/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 94012 (MS16-123: Security Update for Windows Kernel-Mode Drivers (3192892)), 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 91289 (Microsoft Windows Security Update for Kernel-Mode Drivers (MS16-123)).

Applying the patch MS16-123 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 Exploit-DB (40572), Tenable (94012) and SecurityFocus (BID 93389†). The entries VDB-92249, VDB-92590, VDB-92588 and VDB-92587 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94012
Nessus Name: MS16-123: Security Update for Windows Kernel-Mode Drivers (3192892)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802074
OpenVAS Name: Microsoft Windows Kernel-Mode Drivers Privilege Elevation Vulnerabilities (3192892)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: MS16-123

Timelineinfo

09/09/2016 🔍
10/11/2016 +32 days 🔍
10/11/2016 +0 days 🔍
10/11/2016 +0 days 🔍
10/12/2016 +1 days 🔍
10/13/2016 +1 days 🔍
05/04/2025 +3125 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS16-123
Researcher: James Forshaw
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2016-7185 (🔍)
GCVE (CVE): GCVE-0-2016-7185
GCVE (VulDB): GCVE-100-92589
SecurityFocus: 93389 - Microsoft Windows Kernel 'Win32k.sys' CVE-2016-7185 Local Privilege Escalation Vulnerability
SecurityTracker: 1036996

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

Entryinfo

Created: 10/12/2016 10:43 AM
Updated: 05/04/2025 10:47 AM
Changes: 10/12/2016 10:43 AM (69), 04/07/2017 01:24 PM (14), 09/23/2022 09:51 AM (4), 09/23/2022 09:53 AM (1), 05/04/2025 10:47 AM (14)
Complete: 🔍
Cache ID: 18:1A4:40

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