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A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2006.0067 -- AUSCERT ALERT
                                   [Win]
       MS06-049, MS06-051 - Multiple Windows kernel vulnerabilities
            allow remote code execution and privilege elevation
                               9 August 2006

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        AusCERT Alert Summary
        ---------------------

Publisher:            Microsoft
Operating System:     Windows XP SP2 and prior
                      Windows Server 2003 SP1 and prior
                      Windows 2000 SP4 and prior
Impact:               Administrator Compromise
                      Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-3648 CVE-2006-3443 CVE-2006-3444

Original Bulletin:    
  http://www.microsoft.com/technet/security/Bulletin/MS06-051.mspx
  http://www.microsoft.com/technet/security/Bulletin/MS06-049.mspx

Comment: This bulletin contains information on two separate Microsoft
         advisories for the Windows kernel, MS06-049 and MS06-051,
         covering three kernel vulnerabilities.

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MS06-051 - Vulnerability in Windows Kernel Could Result in 
Remote Code Execution

Affected Software:
	- Microsoft Windows 2000 Service Pack 4
	- Microsoft Windows XP Service Pack 1 
	  and Microsoft Windows XP Service Pack 2
	- Microsoft Windows XP Professional x64 Edition
	- Microsoft Windows Server 2003 
	  and Microsoft Windows Server 2003 Service Pack 1
	- Microsoft Windows Server 2003 for Itanium-based Systems 
	  and Microsoft Windows Server 2003 with SP1 for Itanium-based Systems
	- Microsoft Windows Server 2003 x64 Edition

Full MS06-051 advisory:
http://www.microsoft.com/technet/security/Bulletin/MS06-051.mspx

Vulnerability Details
	
Unhandled Exception Vulnerability - CVE-2006-3648:

	There is a remote code execution vulnerability in the way that exception
	handling is managed on multiple applications that are resident in memory.
	This may be exploited to execute arbitrary code on a vulnerable computer 
	if a user visits a malicious web site.
	
User Profile Elevation of Privilege Vulnerability - CVE-2006-3443:

	There is a privilege elevation vulnerability in the way that Windows
	2000 starts applications. This vulnerability could allow a logged on
	user to take complete control of the system.

- --------------------------------------------------------------------------------

MS06-049 - Vulnerability in Windows Kernel Could Result in Elevation of Privilege

Affected Software:
	- Microsoft Windows 2000 Service Pack 4

Non-Affected Software:
	- Microsoft Windows XP Service Pack 1 
	  and Microsoft Windows XP Service Pack 2
	- Microsoft Windows XP Professional x64 Edition
	- Microsoft Windows Server 2003 
	  and Microsoft Windows Server 2003 Service Pack 1
	- Microsoft Windows Server 2003 for Itanium-based Systems 
	  and Microsoft Windows Server 2003 with SP1 for Itanium-based Systems
	- Microsoft Windows Server 2003 x64 Edition

Full MS06-049 advisory:
http://www.microsoft.com/technet/security/Bulletin/MS06-049.mspx

Vulnerability Details

Windows 2000 Kernel Elevation of Privilege Vulnerability - CVE-2006-3444:

	There is a privilege elevation vulnerability in Windows 2000 caused
	by improper validation of system inputs. This vulnerability could
	allow a logged on user to take complete control of the system.

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This security bulletin is provided as a service to AusCERT's members.  As
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        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
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