Patch Tuesday Analysis for June 2011

Thirty-two Vulnerabilities are addressed with the release of 16 security bulletins for June’s patch Tuesday. We recommend giving first attention to what Microsoft calls critical updates, especially where consistent code is likely as indicated by the exploitability index. We recommend giving priority to domain controllers, servers and workstations in that order. For example MS11-043 and MS11-048 have to do with the Small Message Block (SMB) client and server. Although any server can be vulnerable, domain controllers have shares open to everyone. As cloud computing becomes more common MS11-051 alerts us to a cross-site scripting vulnerability with AD Certificate Services Web Enrollment. The patch is only offered to servers with this role. Servers with custom web enrollment ASP pages will need to have special attention since the custom pages may be lost when the update is applied. The need to test for issues is apparent.
Servers hosting servers with hyper-V can be attacked by the guest server causing a DoS. If your server has that role see MS11-047.
.NET Framework comes under attack as brought out in MS11-039 and MS11-044. The two updates are not related but can affect servers as well as workstations. They  can be applied in any order.
Server 2003 can be attacked in the Distributed File System with memory corruption causing remote code or a DoS. Window XP is also vulnerable. The other vulnerability mentioned in MS11-042 can affect other systems with a DoS.
Workstations and Terminal Servers will get the rest of the attention. MS11-050 is a cumulative update and MS11-52 reveals vulnerability in VML.  MS11-041 and MS11-046 shows how to correct vulnerabilities in kernel mode drivers.
MS-045 resolves multiple vulnerabilities in Microsoft Excel. Other applications such as SQL Server and Visual Studio have vulnerability in the XML Editor.
Just as the guard at a gate needs to be protected, the Threat Management Gateway client can come under attack and actually introduces a vulnerability (MS11-040). Microsoft suggests as a workaround, not using it. However some kind of malware protection needs to be used at the client level.
BulletinExploit Types
/Technologies Affected		System Types AffectedExploit
details public?
/ Being exploited?		Comprehensive,
practical
workaround
available?		MS severity ratingProducts AffectedNotesRandy's recommendation
MS11-038

2476490		Arbitrary code

/ WMF		Workstations
Terminal Servers
No/NoNoCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Restart Req'dPatch after testing
MS11-046

2503665		Privilege elevation

/ Windows 		Workstations
Terminal Servers
Yes/YesNoImportant XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Restart Req'dPatch after testing
MS11-039

2514842		Arbitrary code

/ .Net Framework; Silverlight		Workstations
Terminal Servers
Servers
Web Servers
Web Hosting Servers
No/NoYesCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Silverlight 4
 Patch after testing
MS11-051

2518295		Privilege elevation

/ Active Directory		Servers
No/NoNoImportant Server 2003
Server 2008
Server 2008 R2
 Patch after testing
MS11-040

2520426		Arbitrary code

/ Threat Management Gateway		Workstations
No/NoNoCritical Forefront TMG 2010 Client
Restart Req'dPatch after testing
MS11-041

2525694		Arbitrary code

/ Windows kernal mode drivers		Workstations
Terminal Servers
No/NoNoCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Restart Req'dPatch after testing
MS11-047

2525835		Denial of service

/ Hyper-V		Virtual Servers
No/NoNoImportant Server 2008
Server 2008 R2
Restart Req'dPatch after testing
MS11-050

2530548		Arbitrary code

/ Internet Explorer		Workstations
Terminal Servers
No/NoNoCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Cumulative UpdatePatch after testing
MS11-042

2535512		Arbitrary code

/ Windows 		Workstations
Servers
No/NoNoCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Restart Req'dPatch after testing
MS11-048

2536275		Denial of service

/ SMB Server		Workstations
Servers
Domain Controllers
No/NoNoImportant Vista
Server 2008
Server 2008 R2
Windows 7
Restart Req'dPatch after testing
MS11-043

2536276		Arbitrary code

/ SMB Client		Workstations
Servers
No/NoNoCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Restart Req'dPatch after testing
MS11-045

2537146		Arbitrary code

/ Microsoft Office		Workstations
Terminal Servers
No/NoNoCritical Office XP
Office 2003
Office 2007
Office 2004 for Mac
Office 2008 for Mac
Comp. Pack for Office 2007
Excel Viewer
Office Converter Pack
Open XML Converter for MAC
Office 2010
Office 2011 for MAC
Multiple vulnerabilitiesPatch after testing
MS11-044

2538814		Arbitrary code

/ .Net Framework		Workstations
Terminal Servers
Servers
Web Servers
Web Hosting Servers
Yes/NoNoCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
 Patch after testing
MS11-049

2543893		Information disclosure

/ XML Editor		Workstations
Terminal Servers
No/NoNoImportant SQL Server 2005
SQL Server 2008
Visual Studio 2005
Visual Studio 2008
Office InfoPath 2007
Visual Studio 2010
Office InfoPath 2010
 Patch after testing
MS11-052

2544521		Arbitrary code

/ Internet Explorer		Workstations
Terminal Servers
No/NoNoCritical XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
 Patch after testing
MS11-037

2544893		Information disclosure

/ MHTML		Workstations
Terminal Servers
Yes/NoYesImportant XP
Vista
Server 2003
Server 2008
Server 2008 R2
Windows 7
Restart may be req'dPatch after testing

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