Microsoft Windows Win32k Kernel Mode Driver input validation

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.
7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Microsoft Windows. Affected by this issue is some unknown functionality of the component Win32k Kernel Mode Driver. Executing a manipulation can lead to input validation. This vulnerability is registered as CVE-2009-1127. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Windows (Operating System) (version unknown). This vulnerability affects an unknown function of the component Win32k Kernel Mode Driver. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

win32k.sys in the kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 does not correctly validate an argument to an unspecified system call, which allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, aka "Win32k NULL Pointer Dereferencing Vulnerability."

The weakness was published 11/10/2009 by Tavis Ormandy (@taviso) with Google Security Team as MS09-065 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability was named CVE-2009-1127 since 03/25/2009. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 42439 (MS09-065: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (969947)), 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 90566 (Microsoft Windows Kernel-Mode Drivers Remote Code Execution Vulnerability (MS09-065)).

Upgrading eliminates this vulnerability. Applying the patch MS09-065 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (53975), Tenable (42439), SecurityFocus (BID 36939†), OSVDB (59867†) and Secunia (SA37318†). Similar entries are available at VDB-50785 and VDB-50784. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 42439
Nessus Name: MS09-065: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (969947)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900886
OpenVAS Name: Microsoft Windows Kernel-Mode Drivers Multiple Vulnerabilities (969947)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: MS09-065

Timelineinfo

03/25/2009 🔍
11/10/2009 +230 days 🔍
11/10/2009 +0 days 🔍
11/10/2009 +0 days 🔍
11/10/2009 +0 days 🔍
11/10/2009 +0 days 🔍
11/10/2009 +0 days 🔍
11/11/2009 +0 days 🔍
11/11/2009 +0 days 🔍
11/19/2009 +8 days 🔍
03/17/2021 +4136 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS09-065
Researcher: Tavis Ormandy (@taviso)
Organization: Google Security Team
Status: Confirmed

CVE: CVE-2009-1127 (🔍)
GCVE (CVE): GCVE-0-2009-1127
GCVE (VulDB): GCVE-100-4060

OVAL: 🔍

X-Force: 53975
SecurityFocus: 36939 - Microsoft Windows Kernel NULL Pointer Dereference Local Privilege Escalation Vulnerability
Secunia: 37318 - Microsoft Windows Win32k Kernel-Mode Driver Multiple Vulnerabilities, Highly Critical
OSVDB: 59867 - Microsoft Windows Win32k Unspecified Kernel System Call Local Privilege Escalation
Vulnerability Center: 24000 - [MS09-065] Microsoft Windows Kernel NULL Pointer Local Privilege Escalation or DoS Vulnerability, High

See also: 🔍

Entryinfo

Created: 11/19/2009 16:53
Updated: 03/17/2021 16:08
Changes: 11/19/2009 16:53 (87), 02/16/2017 16:18 (8), 03/17/2021 16:08 (4)
Complete: 🔍
Cache ID: 216:100:103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!