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.
8.8	$5k-$25k	0.00

A vulnerability was found in Microsoft Windows (Operating System) (affected version not known) and classified as critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was released 04/12/2011 by Tarjei Mandt with Norman (Website). The advisory is shared at us-cert.gov. The identification of this vulnerability is CVE-2011-1231. The exploitation is known to be easy. An attack has to be approached locally. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around 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.

A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (66413) and Tenable (53391). Entries connected to this vulnerability are available at 4336, 54584, 56176 and 56475.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

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

03/04/2011 🔍
04/12/2011 +39 days 🔍
04/12/2011 +0 days 🔍
04/12/2011 +0 days 🔍
04/12/2011 +0 days 🔍
04/12/2011 +0 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-2011-1231 (🔍)
OVAL: 🔍

X-Force: 66413
Vulnerability Center: 31065 - [MS11-034] Microsoft Windows Win32k Null Pointer Dereference Privilege Escalation (CVE-2011-1231), High
SecurityFocus: 47231 - Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1231) Local Privilege Escalation Vulnerability
Secunia: 44156
OSVDB: 71737 - Microsoft Windows win32k.sys Driver Null Pointer De-reference Unspecified Local Privilege Escalation (2011-1231)

See also: 🔍

Entryinfo

Created: 03/23/2015 04:50 PM
Updated: 11/02/2021 02:16 PM
Changes: 03/23/2015 04:50 PM (61), 04/07/2017 04:04 PM (10), 11/02/2021 02:11 PM (5), 11/02/2021 02:16 PM (1)
Complete: 🔍

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