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Vulnerability Details : CVE-2011-1281

The Client/Server Run-time Subsystem (aka CSRSS) in the Win32 subsystem 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 does not properly restrict the number of console objects for a process, which allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that triggers an incorrect memory assignment for a user transaction, aka "CSRSS Local EOP AllocConsole Vulnerability."
Publish Date : 2011-07-13 Last Update Date : 2011-10-04
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceOverflowGain privilegesMemory corruption
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
CSRSS Local EOP AllocConsole Vulnerability oval:org.mitre.oval:def:12602 windows
MS11-056: Vulnerabilities in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege (2507938) oval:gov.nist.fdcc.patch:def:11770 windows
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-1281

# Product Type Vendor Product Version Update Edition Language
1 OS Microsoft Windows 2003 Server SP2 Version Details Vulnerabilities
2 OS Microsoft Windows 7 - SP1 X64 Version Details Vulnerabilities
3 OS Microsoft Windows 7 - - X32 Version Details Vulnerabilities
4 OS Microsoft Windows 7 - SP1 X32 Version Details Vulnerabilities
5 OS Microsoft Windows 7 - - X64 Version Details Vulnerabilities
6 OS Microsoft Windows Server 2003 SP2 X64 Version Details Vulnerabilities
7 OS Microsoft Windows Server 2003 SP2 Itanium Version Details Vulnerabilities
8 OS Microsoft Windows Server 2008 - SP2 Itanium Version Details Vulnerabilities
9 OS Microsoft Windows Server 2008 Itanium Version Details Vulnerabilities
10 OS Microsoft Windows Server 2008 X64 Version Details Vulnerabilities
11 OS Microsoft Windows Server 2008 SP2 X64 Version Details Vulnerabilities
12 OS Microsoft Windows Server 2008 X32 Version Details Vulnerabilities
13 OS Microsoft Windows Server 2008 SP2 X32 Version Details Vulnerabilities
14 OS Microsoft Windows Server 2008 R2 X64 Version Details Vulnerabilities
15 OS Microsoft Windows Server 2008 R2 SP1 X64 Version Details Vulnerabilities
16 OS Microsoft Windows Server 2008 R2 Itanium Version Details Vulnerabilities
17 OS Microsoft Windows Server 2008 R2 SP1 Itanium Version Details Vulnerabilities
18 OS Microsoft Windows Vista SP1 Version Details Vulnerabilities
19 OS Microsoft Windows Vista SP1 X64 Version Details Vulnerabilities
20 OS Microsoft Windows Vista SP2 Version Details Vulnerabilities
21 OS Microsoft Windows Vista SP2 X64 Version Details Vulnerabilities
22 OS Microsoft Windows Xp - SP2 X64 Version Details Vulnerabilities
23 OS Microsoft Windows Xp SP3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Microsoft Windows 2003 Server 1
Microsoft Windows 7 4
Microsoft Windows Server 2003 2
Microsoft Windows Server 2008 10
Microsoft Windows Vista 4
Microsoft Windows Xp 2

- References For CVE-2011-1281

http://technet.microsoft.com/en-us/security/bulletin/ms11-056
Microsoft Security Bulletin MS11-056 MS11-056 - Important : Vulnerabilities in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege (2507938) - Version: 1.1 Severity Rating: Important Revision Note: V1.1 (July 21, 2011): Added a link to Microsoft Knowledge Base Article 2507938 under Known Issues in the Executive Summary. Summary: This security update resolves five privately reported vulnerabilities in the Microsoft Windows Client/Server Run-time Subsystem (CSRSS). The vulnerabilities could allow elevation of privilege if an attacker logs on to a user's system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit the vulnerabilities.Release Date:2011-07-21
http://www.us-cert.gov/cas/techalerts/TA11-193A.html
CERT TA11-193A

- Metasploit Modules Related To CVE-2011-1281

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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