Microsoft Windows CSRSS 'AllocConsole()' Local Privilege Escalation Vulnerability

Bugtraq ID:	48588
Class:	Failure to Handle Exceptional Conditions
CVE:	CVE-2011-1281
Remote:	No
Local:	Yes
Published:	Jul 12 2011 12:00AM
Updated:	Jul 13 2011 12:10PM
Credit:	Matthew 'j00ru' Jurczyk of Hispasec Virustotal
Vulnerable:	Microsoft Windows XP Tablet PC Edition SP3 Microsoft Windows XP Tablet PC Edition SP2 Microsoft Windows XP Tablet PC Edition SP1 Microsoft Windows XP Tablet PC Edition Microsoft Windows XP Professional x64 Edition SP2 Microsoft Windows XP Professional x64 Edition Microsoft Windows XP Professional SP3 Microsoft Windows XP Professional SP2 Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Media Center Edition SP3 Microsoft Windows XP Media Center Edition SP2 Microsoft Windows XP Media Center Edition SP1 Microsoft Windows XP Media Center Edition Microsoft Windows XP Home SP3 Microsoft Windows XP Home SP2 Microsoft Windows XP Home SP1 Microsoft Windows XP Home Microsoft Windows XP 64-bit Edition SP1 Microsoft Windows XP 64-bit Edition Microsoft Windows XP 0 Microsoft Windows XP 0 Microsoft Windows Vista x64 Edition SP2 Microsoft Windows Vista x64 Edition SP1 Microsoft Windows Vista x64 Edition 0 Microsoft Windows Vista Ultimate 64-bit edition SP2 Microsoft Windows Vista Ultimate 64-bit edition SP1 Microsoft Windows Vista Ultimate 64-bit edition 0 Microsoft Windows Vista Home Premium 64-bit edition SP2 Microsoft Windows Vista Home Premium 64-bit edition SP1 Microsoft Windows Vista Home Premium 64-bit edition 0 Microsoft Windows Vista Home Basic 64-bit edition SP2 Microsoft Windows Vista Home Basic 64-bit edition SP1 Microsoft Windows Vista Home Basic 64-bit edition 0 Microsoft Windows Vista Enterprise 64-bit edition SP2 Microsoft Windows Vista Enterprise 64-bit edition SP1 Microsoft Windows Vista Enterprise 64-bit edition 0 Microsoft Windows Vista Business 64-bit edition SP2 Microsoft Windows Vista Business 64-bit edition SP1 Microsoft Windows Vista Business 64-bit edition 0 Microsoft Windows Vista Ultimate SP2 Microsoft Windows Vista Ultimate SP1 Microsoft Windows Vista Ultimate Microsoft Windows Vista SP2 Microsoft Windows Vista SP1 Microsoft Windows Vista Home Premium SP2 Microsoft Windows Vista Home Premium SP1 Microsoft Windows Vista Home Premium Microsoft Windows Vista Home Basic SP2 Microsoft Windows Vista Home Basic SP1 Microsoft Windows Vista Home Basic Microsoft Windows Vista Enterprise SP2 Microsoft Windows Vista Enterprise SP1 Microsoft Windows Vista Enterprise Microsoft Windows Vista Business SP2 Microsoft Windows Vista Business SP1 Microsoft Windows Vista Business Microsoft Windows Vista beta 2 Microsoft Windows Vista 0 Microsoft Windows Server 2008 Standard Edition X64 Microsoft Windows Server 2008 Standard Edition SP2 Microsoft Windows Server 2008 Standard Edition Release Candidate Microsoft Windows Server 2008 Standard Edition R2 SP1 Microsoft Windows Server 2008 Standard Edition R2 Microsoft Windows Server 2008 Standard Edition Itanium Microsoft Windows Server 2008 R2 x64 SP1 Microsoft Windows Server 2008 R2 x64 0 Microsoft Windows Server 2008 R2 Itanium SP1 Microsoft Windows Server 2008 R2 Itanium 0 Microsoft Windows Server 2008 R2 for x64-based Systems SP1 0 Microsoft Windows Server 2008 R2 Datacenter SP1 Microsoft Windows Server 2008 R2 Datacenter 0 Microsoft Windows Server 2008 for x64-based Systems SP2 Microsoft Windows Server 2008 for x64-based Systems R2 Microsoft Windows Server 2008 for x64-based Systems 0 Microsoft Windows Server 2008 for Itanium-based Systems SP2 Microsoft Windows Server 2008 for Itanium-based Systems R2 Microsoft Windows Server 2008 for Itanium-based Systems 0 Microsoft Windows Server 2008 for 32-bit Systems SP2 Microsoft Windows Server 2008 for 32-bit Systems 0 Microsoft Windows Server 2008 Enterprise Edition SP2 Microsoft Windows Server 2008 Enterprise Edition Release Candidate Microsoft Windows Server 2008 Enterprise Edition 0 Microsoft Windows Server 2008 Datacenter Edition SP2 Microsoft Windows Server 2008 Datacenter Edition Release Candidate Microsoft Windows Server 2008 Datacenter Edition 0 Microsoft Windows Server 2003 x64 SP2 Microsoft Windows Server 2003 x64 SP1 Microsoft Windows Server 2003 Web Edition SP2 Microsoft Windows Server 2003 Web Edition SP1 Microsoft Windows Server 2003 Web Edition Microsoft Windows Server 2003 Standard x64 Edition Microsoft Windows Server 2003 Standard Edition SP2 Microsoft Windows Server 2003 Standard Edition SP1 Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Itanium SP2 Microsoft Windows Server 2003 Itanium SP1 Microsoft Windows Server 2003 Itanium 0 Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Microsoft Windows Server 2003 Enterprise Edition Itanium 0 Microsoft Windows Server 2003 Enterprise Edition SP1 Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacenter x64 Edition SP2 Microsoft Windows Server 2003 Datacenter x64 Edition Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Beta 1 Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Microsoft Windows Server 2003 Datacenter Edition Itanium 0 Microsoft Windows Server 2003 Datacenter Edition SP1 Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows Server 2003 Sp2 Enterprise Microsoft Windows Server 2003 Sp2 Datacenter Microsoft Windows Server 2003 Sp2 Compute Cluster Microsoft Windows Server 2003 SP2 Microsoft Windows Server 2003 SP1 Platform SDK Microsoft Windows Server 2003 Sp1 Compute Cluster Microsoft Windows Server 2003 SP1 Microsoft Windows Server 2008 R2 Microsoft Windows 7 Ultimate 0 Microsoft Windows 7 Professional 0 Microsoft Windows 7 Home Premium 0 Microsoft Windows 7 Home Premium - Sp1 X64 Microsoft Windows 7 Home Premium - Sp1 X32 Microsoft Windows 7 for x64-based Systems SP1 Microsoft Windows 7 for x64-based Systems 0 Microsoft Windows 7 for Itanium-based Systems SP1 Microsoft Windows 7 for Itanium-based Systems 0 Microsoft Windows 7 for 32-bit Systems SP1 Microsoft Windows 7 for 32-bit Systems 0
Not Vulnerable:

Microsoft Windows CSRSS 'AllocConsole()' Local Privilege Escalation Vulnerability

Microsoft Windows is prone to a local privilege-escalation vulnerability.

An attacker can exploit this issue to execute arbitrary code with SYSTEM-level privileges. Successfully exploiting this issue will result in the complete compromise of affected computers.

Microsoft Windows CSRSS 'AllocConsole()' Local Privilege Escalation Vulnerability

The researcher who discovered the issue has created a functional exploit; however, this exploit is not publicly available.

Microsoft Windows CSRSS 'AllocConsole()' Local Privilege Escalation Vulnerability

Solution:
The vendor has released an advisory and updates. Please see the references for details.


Microsoft Windows Server 2008 for 32-bit Systems SP2

• Microsoft Security Update for Windows Server 2008 (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 773

Microsoft Windows Vista Home Premium SP2

• Microsoft Security Update for Windows Vista (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 733

Microsoft Windows Server 2008 R2 Itanium 0

• Microsoft Security Update for Windows Server 2008 R2 for Itanium-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 754

Microsoft Windows Vista Home Basic SP1

• Microsoft Security Update for Windows Vista (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 733

Microsoft Windows XP Media Center Edition SP3

• Microsoft Security Update for Windows XP (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 771

Microsoft Windows 7 for 32-bit Systems 0

• Microsoft Security Update for Windows 7 (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 763

Microsoft Windows Server 2003 Web Edition SP2

• Microsoft Security Update for Windows Server 2003 (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 730

Microsoft Windows XP Professional x64 Edition SP2

• Microsoft Security Update for Windows XP x64 Edition (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 756

Microsoft Windows Vista x64 Edition SP1

• Microsoft Security Update for Windows Vista for x64-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 737

Microsoft Windows Vista Ultimate SP2

• Microsoft Security Update for Windows Vista (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 733

Microsoft Windows Vista Home Basic SP2

• Microsoft Security Update for Windows Vista (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 733

Microsoft Windows Server 2008 for x64-based Systems 0

• Microsoft Security Update for Windows Server 2008 x64 Edition (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 739

Microsoft Windows Server 2008 for Itanium-based Systems SP2

• Microsoft Security Update for Windows Server 2008 for Itanium-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 745

Microsoft Windows Vista Home Premium SP1

• Microsoft Security Update for Windows Vista (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 733

Microsoft Windows 7 for x64-based Systems 0

• Microsoft Security Update for Windows 7 for x64-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 747

Microsoft Windows Server 2003 Standard Edition SP2

• Microsoft Security Update for Windows Server 2003 (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 730

Microsoft Windows Server 2008 for x64-based Systems SP2

• Microsoft Security Update for Windows Server 2008 x64 Edition (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 739

Microsoft Windows Server 2003 Itanium SP2

• Microsoft Security Update for Windows Server 2003 for Itanium-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 732

Microsoft Windows Server 2008 for Itanium-based Systems 0

• Microsoft Security Update for Windows Server 2008 for Itanium-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 745

Microsoft Windows Vista x64 Edition SP2

• Microsoft Security Update for Windows Vista for x64-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 737

Microsoft Windows 7 for x64-based Systems SP1

• Microsoft Security Update for Windows 7 for x64-based Systems (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 747

Microsoft Windows Server 2008 R2 x64 SP1

• Microsoft Security Update for Windows Server 2008 R2 x64 Edition (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 759

Microsoft Windows Vista Business SP2

• Microsoft Security Update for Windows Vista (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 733

Microsoft Windows Server 2008 R2 x64 0

• Microsoft Security Update for Windows Server 2008 R2 x64 Edition (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 759

Microsoft Windows Vista Enterprise SP2

• Microsoft Security Update for Windows Vista (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 733

Microsoft Windows Server 2003 Datacenter x64 Edition SP2

• Microsoft Security Update for Windows Server 2003 x64 Edition (KB2507938)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26 731

Microsoft Windows CSRSS 'AllocConsole()' Local Privilege Escalation Vulnerability

References:

• CVE-2011-1281: A story of a Windows CSRSS Privilege Escalation vulnerability (Vexillium)
  
• Microsoft Windows Homepage (Microsoft )
  
• MS11-056: Vulnerabilities in the Client/Server Runtime Subsystem and Console Hos (Microsoft)
  
• Vulnerabilities in Windows Client/Server Run-time Subsystem Could Allow Elevatio (Microsoft)