Microsoft Windows up to Vista Kernel 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.
5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows up to Vista. It has been declared as problematic. This issue affects some unknown processing of the component Kernel. The manipulation results in access control. This vulnerability is reported as CVE-2015-6171. The attack can be launched remotely. Moreover, an exploit is present. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows up to Vista (Operating System). It has been classified as problematic. Affected is some unknown processing of the component Kernel. 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 disclosed 12/08/2015 as MS15-135 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability is traded as CVE-2015-6171 since 08/14/2015. It is possible to launch the attack remotely. Required for exploitation is a authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 87264 (MS15-135: Security Update for Windows Kernel-Mode Drivers to Address Elevation of Privilege (3119075)), 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 91133 (Microsoft Windows Kernel-Mode Drivers Privilege Escalation Vulnerabilities (MS15-135)).

Applying the patch MS15-135 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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 22083.

The vulnerability is also documented in the databases at Exploit-DB (39025), Tenable (87264) and Vulnerability Center (SBV-54923†). The entries VDB-79513, VDB-79514 and VDB-79515 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 87264
Nessus Name: MS15-135: Security Update for Windows Kernel-Mode Drivers to Address Elevation of Privilege (3119075)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 19782
OpenVAS Name: Microsoft Windows Kernel-Mode Drivers Code Execution Vulnerability (3119075)
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: MS15-135
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

08/14/2015 🔍
12/08/2015 +116 days 🔍
12/08/2015 +0 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/09/2015 +0 days 🔍
12/09/2015 +0 days 🔍
05/25/2025 +3455 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS15-135
Status: Confirmed

CVE: CVE-2015-6171 (🔍)
GCVE (CVE): GCVE-0-2015-6171
GCVE (VulDB): GCVE-100-79512
SecurityFocus: 78506
SecurityTracker: 1034334
Vulnerability Center: 54923 - [MS15-135] Microsoft Windows Local Code Execution Vulnerability in Kernel Memory - CVE-2015-6171, High

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

Entryinfo

Created: 12/09/2015 13:32
Updated: 05/25/2025 13:25
Changes: 12/09/2015 13:32 (62), 05/03/2019 06:55 (11), 06/29/2022 09:32 (4), 06/29/2022 09:34 (2), 05/25/2025 13:25 (23)
Complete: 🔍
Cache ID: 216:57C:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!