February 2011 Microsoft Black Tuesday Summary
Last Updated: 2011-02-09 21:20:21 UTC
by Joel Esler (Version: 5)
Here are the February 2011 Black Tuesday patches. Enjoy!
Overview of the February 2011 Microsoft Patches and their status.
| # | Affected | Contra Indications | Known Exploits | Microsoft rating | ISC rating(*) | |
|---|---|---|---|---|---|---|
| clients | servers | |||||
| MS11-003 | Cumulative Security Update for Internet Explorer (Replaces MS10-090 ) | |||||
| Internet Explorer CVE-2010-3971 CVE-2011-0035 CVE-2011-0036 CVE-2011-0038 |
KB 2482017 | ACTIVELY EXPLOITED. | Severity:Critical Exploitability: 1,1,1 |
PATCH NOW! | Critical | |
| MS11-004 | Vulnerability in Internet Information Services (IIS) FTP Service Could Allow Remote Code Execution | |||||
| IIS CVE-2010-3972 |
KB 2489256 | POC Available. | Severity:Important Exploitability: 1 |
PATCH NOW! | Critical | |
| MS11-005 | DoS Vulnerability in Active Directory (Replaces MS10-068 MS10-101 ) | |||||
| Active Directory CVE-2011-0040 |
KB 2478953 | None Known. | Severity:Important Exploitability: 3 |
Important | Important | |
| MS11-006 | Remote Code Execution Vulnerability in Windows Shell Graphics Processing (Replaces MS10-046 ) | |||||
| Windows Shell CVE-2010-3970 |
KB 2483185 | Exploit Available! | Severity:Critical Exploitability: 1 |
PATCH NOW! | Critical | |
| MS11-007 | Remote Code Execution Vulnerability in the OpenType Compact Font Format (CFF) Driver (Replaces MS10-091 ) | |||||
| Open Type Compact Font Format Driver CVE-2011-0033 |
KB 2485376 | None Known. | Severity:Critical Exploitability: 1 |
Critical | Critical | |
| MS11-008 | Remote Code Execution Vulnerabilities in Microsoft Visio (Replaces MS10-028 MS10-036 ) | |||||
| Visio CVE-2011-0092 CVE-2011-0093 |
KB 2451879 | None Known. | Severity:Important Exploitability: 1,1 |
Critical | Important | |
| MS11-009 | Information Disclosure Vulnerability in JScript and VBScript Scripting Engines (Replaces MS10-022 ) | |||||
| VBScript/JScript CVE-2011-0031 |
KB 2475792 | None Known. | Severity:Important Exploitability: 3 |
Important | Important | |
| MS11-010 | Privilege Elevation Vulnerability in Windows Client/Server Run-time Subsystem (Replaces MS10-011 ) | |||||
| Client/Server Runtime CVE-2011-0030 |
KB 2476687 | None Known. | Severity:Important Exploitability: 1 |
Important | Important | |
| MS11-011 | Privilege Elevation Vulnerabilities in Windows Kernel (Replaces MS10-021 MS10-047 ) | |||||
| Windows Kernel CVE-2010-4398 CVE-2011-0045 |
KB 2393802 | POC Available. | Severity:Important Exploitability: 1 |
Important | Important | |
| MS11-012 | Privilege Elevation Vulnerabilities in Windows Kernel-Mode Drivers (Replaces MS10-098 ) | |||||
| Windows Kernel-Mode Drivers CVE-2011-0086 CVE2011-0087 CVE2011-0088 CVE2011-0089 CVE-2011-0090 |
KB 2479628 | None Known. | Severity:Important Exploitability: 1,1,1,1,1 |
Important | Important | |
| MS11-013 | Privilege Elevation Vulnerabilities in Kerberos (Replaces MS10-014 ) | |||||
| Kerberos CVE-2011-0043 CVE-2011-0091 |
KB 2496930 | Publically Disclosed. | Severity:Important Exploitability: 1,1 |
Important | Important | |
| MS11-014 | Privilege Elevation Vulnerability in Local Security Authority Subsystem Service (Replaces MS08-002 ) | |||||
| LSASS 2011-0039 |
KB 2478960 | None Known. | Severity:Important Exploitability: 1 |
Important | Important | |
We appreciate updates
US based customers can call Microsoft for free patch related support on 1-866-PCSAFETY
- We use 4 levels:
- PATCH NOW: Typically used where we see immediate danger of exploitation. Typical environments will want to deploy these patches ASAP. Workarounds are typically not accepted by users or are not possible. This rating is often used when typical deployments make it vulnerable and exploits are being used or easy to obtain or make.
- Critical: Anything that needs little to become "interesting" for the dark side. Best approach is to test and deploy ASAP. Workarounds can give more time to test.
- Important: Things where more testing and other measures can help.
- Less Urgent: Typically we expect the impact if left unpatched to be not that big a deal in the short term. Do not forget them however.
- The difference between the client and server rating is based on how you use the affected machine. We take into account the typical client and server deployment in the usage of the machine and the common measures people typically have in place already. Measures we presume are simple best practices for servers such as not using outlook, MSIE, word etc. to do traditional office or leisure work.
- The rating is not a risk analysis as such. It is a rating of importance of the vulnerability and the perceived or even predicted threat for affected systems. The rating does not account for the number of affected systems there are. It is for an affected system in a typical worst-case role.
- Only the organization itself is in a position to do a full risk analysis involving the presence (or lack of) affected systems, the actually implemented measures, the impact on their operation and the value of the assets involved.
- All patches released by a vendor are important enough to have a close look if you use the affected systems. There is little incentive for vendors to publicize patches that do not have some form of risk to them
-- Joel Esler | http://blog.snort.org | http://blog.joelesler.net
UPDATE:
We have been getting reports of people having issues applying MS11-003 (see comments). No doubt you are testing this in a test environment first anyway, but for this patch you may wish to double check. Errors of invalid hash and error code 0x80246002.
If you do have issues with your patches make sure you let Microsoft know via your support channel.
- Mark -
Comments
I bet, you know about http://support.microsoft.com/kb/958056 and have tried the method (cleaning %windir%\SoftwareDistribution\Download) already with no success.
If true, do you have denied access for Everyone to the shimgvw.dll manually (via cacls) or via Fix It 50590 mentioned once in MS Advisory (KB)2490606? If true, you'll have to remove this restriction manually (cacls %WINDIR%\SYSTEM32\shimgvw.dll /E /R everyone) or via Fix It 50593 (in case you've downloaded it earlier).
IE6 and IE7 testing has been positive so far.....
http://searchsecurity.techtarget.com/news/article/0,289142,sid14_gci1381423,00.html
A rootkit infection may be the cause of a Windows Blue Screen of Death issue experienced by people who applied the latest round of Microsoft patches.
It appears that the affected Windows PCs had the rootkit infection prior to deploying the Microsoft patches. Researchers investigating the issue have isolated the infection to the Windows atapi.sys file, a driver used by Windows to connect hard drives and other components. Patrick W. Barnes, an Amarillo, Texas-based computer expert who discovered the infection, posted instructions on how to repair the atapi.sys file.
Among others, Patrick W. Barnes and I discussed it in this forum, see http://isc.sans.org/diary.html?storyid=8209
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As always, thanks for this useful list.