VDB-99680 · CVE-2017-0191 · EDB 41894

Microsoft Windows Vista SP2 up to Server 2012 R2 Win32k access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Microsoft Windows. This impacts an unknown function of the component Win32k. Such manipulation leads to access control. This vulnerability is referenced as CVE-2017-0191. It is possible to launch the attack remotely. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) and classified as critical. Affected by this issue is an unknown function of the component Win32k. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is availability.

The bug was discovered 04/11/2017. The weakness was published 04/11/2017 as KB4015195 / KB4015217 / KB4015219 / KB4015221 / KB4015549 / KB4015550 / KB4015551 / KB4015583 / KB4015550 as confirmed knowledge base article (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability is handled as CVE-2017-0191 since 09/09/2016. The attack may be launched remotely. The successful exploitation requires a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 99285 (Windows Server 2012 April 2017 Security Updates (Petya)), 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 91355 (Microsoft Windows Security Update April 2017).

Applying a patch 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 (99285), SecurityFocus (BID 97466†) and SecurityTracker (ID 1038239†). catalog.update.microsoft.com is providing further details. Similar entries are available at VDB-99533, VDB-99655, VDB-99656 and VDB-99657. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Operating System

Vendor

Microsoft

Name

Windows

Version

License

commercial

Website

Vendor: https://www.microsoft.com/
Product: https://www.microsoft.com/en-us/windows

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99285
Nessus Name: Windows Server 2012 April 2017 Security Updates (Petya)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800218
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4015583)
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: catalog.update.microsoft.com

Timelineinfo

09/09/2016 🔍
04/11/2017 +214 days 🔍
04/11/2017 +0 days 🔍
04/11/2017 +0 days 🔍
04/11/2017 +0 days 🔍
04/11/2017 +0 days 🔍
04/12/2017 +1 days 🔍
04/12/2017 +0 days 🔍
04/12/2017 +0 days 🔍
12/23/2024 +2812 days 🔍