Microsoft Windows null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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8.1$5k-$25k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows and classified as problematic. The impacted element is an unknown function. Executing a manipulation can lead to null pointer dereference. This vulnerability is tracked as CVE-2011-1881. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) (the affected version is unknown). It has been declared as critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, a different vulnerability than other CVEs listed in MS11-054, aka "Win32k Null Pointer De-reference Vulnerability."

The weakness was disclosed 07/13/2011 by Tarjei Mandt with Norman (Website). The advisory is available at us-cert.gov. This vulnerability was named CVE-2011-1881 since 05/04/2011. The exploitation appears to be easy. Local access is required to approach this attack. A single authentication is needed for exploitation. 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 10/17/2024).

The vulnerability scanner Nessus provides a plugin with the ID 55570 (MS11-054: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2555917)), 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 90718 (Microsoft Windows Kernel Mode Drivers Elevation of Privilege (MS11-054)).

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 (68307), Tenable (55570), SecurityFocus (BID 48599†), OSVDB (73787†) and Secunia (SA45186†). The entries VDB-4380, VDB-54556, VDB-57929 and VDB-57928 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.1

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.4
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55570
Nessus Name: MS11-054: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2555917)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902538
OpenVAS Name: Windows Kernel-Mode Drivers Privilege Elevation Vulnerabilities (2555917)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/04/2011 🔍
07/12/2011 +69 days 🔍
07/12/2011 +0 days 🔍
07/12/2011 +0 days 🔍
07/12/2011 +0 days 🔍
07/13/2011 +1 days 🔍
07/13/2011 +0 days 🔍
07/13/2011 +0 days 🔍
03/23/2015 +1349 days 🔍
10/17/2024 +3496 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: us-cert.gov
Researcher: Tarjei Mandt
Organization: Norman
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1881 (🔍)
GCVE (CVE): GCVE-0-2011-1881
GCVE (VulDB): GCVE-100-57922

OVAL: 🔍

X-Force: 68307
SecurityFocus: 48599 - Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1881) Local Privilege Escalation Vulnerability
Secunia: 45186 - Microsoft Windows win32k.sys Driver Multiple Vulnerabilities, Less Critical
OSVDB: 73787
SecurityTracker: 1025761 - Windows Kernel-Mode Drivers Let Local Users Gain Elevated Privileges
Vulnerability Center: 32247 - [MS11-054] Microsoft Windows Win32K.SYS \x27NULL Pointer\x27 Local Privilege Escalation (CVE-2011-1881), High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 10/17/2024 23:04
Changes: 03/23/2015 16:50 (62), 04/07/2017 16:04 (19), 11/14/2021 10:49 (3), 10/17/2024 23:04 (26)
Complete: 🔍
Cache ID: 216:3A5:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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