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  • MS-DEFCON 2: August Black Tuesday unleashed

    Posted on August 12th, 2009 at 07:23 woody 14 comments

    It’s going to be a bloody month.

    Microsoft just released nine security bulletins, covering 19 separate security holes.

    Five of the bulletins have an exploitability rating of “1″ which means Microsoft “expect[s] there to be consistent, reliable code in the wild seeking to exploit one or more of these vulnerabilities within the first 30 days from release.”

    Sorry, I don’t buy it.

    This month we get two ActiveX security bulletins, with a total of nine separately identified security holes. That’s just for ActiveX – the evil spawn of Internet Explorer.

    MS09-037 is the patch for the Active Template Library that I talked about two weeks ago. If you recall, there was an out-of-band patch that was supposed to fix the problem. Again. Security Advisory 973882 goes into the details of how MS09-032, MS09-034, MS09-035 and MS09-037 are inter-related. Man, what a mess. Keystone Kops time.

    The other ActiveX security bulletin, MS09-043, fixes ActiveX holes in the Office Web Components.

    Those are the two bulletins I’ll be watching most closely. I may advise you to apply the patches earlier this month than usual. Let’s see what happens.

    As usual, the most thorough analysis is at the SANS Internet Storm Center – although I don’t recommend that you follow their “damn the torpedoes, patch it now” advice.

    We’re at MS-DEFCON 2: Patch reliability is unclear. Unless you have an immediate, pressing need to install a specific patch, don’t do it.

    UPDATE: In response to a request from Vaughn, here are the KB numbers for the August Black Tuesday patches:

    MS09-036
    Vulnerability in ASP.NET in Microsoft Windows Could Allow Denial of Service (970957)

    MS09-037
    Vulnerabilities in Microsoft Active Template Library (ATL) Could Allow Remote Code Execution (973908)

    MS09-038
    Vulnerabilities in Windows Media File Processing Could Allow Remote Code Execution (971557)

    MS09-039
    Vulnerabilities in WINS Could Allow Remote Code Execution (969883)

    MS09-040
    Vulnerability in Message Queuing Could Allow Elevation of Privilege (971032)

    MS09-041
    Vulnerability in Workstation Service Could Allow Elevation of Privilege (971657)

    MS09-042
    Vulnerability in Telnet Could Allow Remote Code Execution (960859)

    MS09-043
    Vulnerabilities in Microsoft Office Web Components Could Allow Remote Code Execution (957638)

    MS09-044
    Vulnerabilities in Remote Desktop Connection Could Allow Remote Code Execution (970927)

     

    14 responses to “MS-DEFCON 2: August Black Tuesday unleashed”

    1. “…although I don’t recommend that you follow their “damn the torpedoes, patch it now” advice.”

      ISC haven’t marked any of this months bulletins as “Patch Now”. The worst are marked “Critical” – “Best approach is to test and deploy ASAP. Workarounds can give more time to test.” – which seems broadly in line with what you’re saying?

    2. Martin -

      ISC has a tendency to recommend installation much more aggressively than I do. In part, that’s because ISC is working with a different set of users – they’re geared to system admins and people in large companies who handle thousands of PCs used by people who don’t have a lot of control over their machines. (So, for example, ISC can’t make a blanket recommendation like, “Install and update IE but don’t use it.”) They also have to be concerned about targeted threats that are directed at specific companies.

      My readership tends to be quite different – people who have full control over their own PCs, who care about protecting their systems, but don’t want to be editing Registry entries every week. That’s why ISC frequently has a “patch it now” slant that I feel is overkill for individual users.

      And you’re right – this month they haven’t (yet) applied a “Patch Now” warning. That’s in direct contrast with Microsoft, which has placed Exploitability Index ratings very high.

    3. “MS09-037 is the patch for the Active Template Library that I talked about two weeks ago. If you recall, there was an out-of-band patch that was supposed to fix the problem. Again. Security Advisory 973882 goes into the details of how MS09-032, MS09-034, MS09-035 and MS09-037 are inter-related. Man, what a mess. Keystone Kops time.”
      Part of this problem here is that to properly patch the ATL hole require changes to the programs linking with ATL. These changes were documented for developers here:
      http://msdn.microsoft.com/en-us/visualc/ee309358.aspx

    4. These patches slipped past me earier on today. Normally I stop them and take a look, but they seem to have autorun and installed.

      Now, when I come to open an Office XP application, it says it needs to run something from the install disk – which I don’t have, because Office was pre-loaded on the machine when I bought it from the manufacturer. Wtf? Well done MS.

    5. Further to the previous comment, it’s just Excel that’s affected, not every Office app. I got carried away.

    6. Woody: All my updates are submitted with KB #’s and you don’t include these with your monthly summaries any more. Can you once again start referencing the KB #’s, too. Appreciate it. Thanks

    7. Vaughn -

      Here are the KB numbers for the August Black Tuesday patches:

      MS09-036
      Vulnerability in ASP.NET in Microsoft Windows Could Allow Denial of Service (970957)

      MS09-037
      Vulnerabilities in Microsoft Active Template Library (ATL) Could Allow Remote Code Execution (973908)

      MS09-038
      Vulnerabilities in Windows Media File Processing Could Allow Remote Code Execution (971557)

      MS09-039
      Vulnerabilities in WINS Could Allow Remote Code Execution (969883)

      MS09-040
      Vulnerability in Message Queuing Could Allow Elevation of Privilege (971032)

      MS09-041
      Vulnerability in Workstation Service Could Allow Elevation of Privilege (971657)

      MS09-042
      Vulnerability in Telnet Could Allow Remote Code Execution (960859)

      MS09-043
      Vulnerabilities in Microsoft Office Web Components Could Allow Remote Code Execution (957638)

      MS09-044
      Vulnerabilities in Remote Desktop Connection Could Allow Remote Code Execution (970927)

    8. I read the news today Wood Dog
      Four thousand holes In-ternet Explorer
      And ‘cos the holes were ActiveX
      They’ve had to patch them all
      Now they know how many holes
      it takes to start a browser war.
      I’d love to turn UAC off.

      Nice One Wood Dog

    9. Hello,
      I have also been offered Security updates for Windows KB956744, KB973507, KB973540and update for Windows Vista KB968389 which I don’t see on your list. Are they part of the Black Tuesday crop of patches as well?
      Thanks
      :)

    10. Woody,

      Why do I always have additional updates sent to my laptop that are not on your list. While I received 971557 and 971657 I got none of the others. However, I did get 956744, 973507, 973540 and 968389. Can you help me out here?

    11. I wonder how many holes are in Albert Hall?

    12. Sometimes the KB numbers don’t match up exactly, and it’s confusing. Your best bet is to do a Google search on, for example,

      KB 956744

      that will usually pinpoint the patch and you can take it from there.

    13. I am so confused about all of this patch business. Can anyone offer some help as to which ones I should patch? I have not installed any updates dated 8/11/09. Should I still avoid those?
      Thanks

    14. I also sometimes get offered different KB numbers on some patches. But the MS numbers (e.g., MS09-037) are still the same. MS Numbers are more constant, so I usually reference patches by this system. It is confusing, but not unmanageable.

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