Microsoft Windows null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$5k-$25k0.00

A vulnerability, which was classified as critical, was found in Microsoft Windows (Operating System) (unknown version). Affected is an unknown code block. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3 allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, aka "Win32k Null Pointer De-reference Vulnerability."

The weakness was published 04/13/2011 by Tarjei Mandt with Norman (Website). The advisory is available at us-cert.gov. This vulnerability is traded as CVE-2011-0673. The exploitability is told to be easy. Local access is required to approach this attack. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 11/02/2021).

The vulnerability scanner Nessus provides a plugin with the ID 53391 (MS11-034: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2506223)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (66402) and Tenable (53391). Similar entries are available at 4336, 54584, 56176 and 56475.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 53391
Nessus Name: MS11-034: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2506223)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 900283
OpenVAS Name: Windows Kernel-Mode Drivers Privilege Elevation Vulnerabilities (2506223)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/28/2011 🔍
04/12/2011 +74 days 🔍
04/12/2011 +0 days 🔍
04/13/2011 +1 days 🔍
04/13/2011 +0 days 🔍
04/13/2011 +0 days 🔍
03/23/2015 +1440 days 🔍
11/02/2021 +2416 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: us-cert.gov
Researcher: Tarjei Mandt
Organization: Norman
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-0673 (🔍)
OVAL: 🔍

X-Force: 66402
Vulnerability Center: 31056 - [MS11-034] Microsoft Windows Win32k Null Pointer Dereference Privilege Escalation (CVE-2011-0673), High
SecurityFocus: 47234 - Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1234) Local Privilege Escalation Vulnerability
Secunia: 44156

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/02/2021 12:00
Changes: 03/23/2015 16:50 (55), 04/07/2017 16:04 (12), 11/02/2021 11:54 (5), 11/02/2021 12:00 (1)
Complete: 🔍

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