CERT-In Vulnerability Note
CIVN-2011-0190
Microsoft Windows Client/Server Run-time Subsystem Privilege Escalation Vulnerability
Original Issue Date:December 14, 2011
Severity Rating: MEDIUM
Systems Affected
- Windows XP Service Pack 3
- Windows XP Professional x64 Edition Service Pack 2
- Windows Server 2003 Service Pack 2
- Windows Server 2003 x64 Edition Service Pack 2
- Windows Server 2003 with SP2 for Itanium-based Systems
- Windows Vista Service Pack 2
- Windows Vista x64 Edition Service Pack 2
- Windows Server 2008 for 32-bit Systems Service Pack 2
- Windows Server 2008 for x64-based Systems Service Pack 2
- Windows Server 2008 for Itanium-based Systems Service Pack 2
- Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1
- Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1
- Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1
- Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Overview
A vulnerability has been reported in Client/Server Run-time Subsystem (CSRSS) in Microsoft Windows, which could allow an attacker to gain elevated privileges.
Description
This vulnerability is caused due to improper verification of permissions in Csrsrv.dll in the Client/Server Run-time Subsystem in Microsoft Windows when sending inter-process device-event messages from low-integrity processes to high-integrity processes. An attacker with valid logon credentials could exploit this vulnerability via a specially crafted application. Successful exploitation of these vulnerability could allow an attacker to gain elevated privileges.
Solution
Apply appropriate patches as mentioned in Microsoft Security Bulletin
MS11-097
Vendor Information
Microsoft
http://www.microsoft.com/technet/security/Bulletin/MS11-097.mspx
References
Microsoft
http://www.microsoft.com/technet/security/Bulletin/MS11-097.mspx
http://support.microsoft.com/kb/2620712
Secunia
http://secunia.com/advisories/47210/
Securityfocus
http://www.securityfocus.com/bid/50972
CVE Name
CVE-2011-3408
Disclaimer
The information provided herein is on "as is" basis, without warranty of any kind.
Contact Information
Email: info@cert-in.org.in Phone: +91-11-24368572
Postal address
Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India
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