Improving Web Application Security: Threats and - CGISecurity

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746 Improving Web Application Security: Threats and Countermeasures●●●●Acquire. If the vulnerability is not addressed by the security measures already inplace, download the patch for testing.Test. Install the patch on a test system to verify the ramifications of the updateagainst your production configuration.Deploy. Deploy the patch to production computers. Make sure your applicationsare not affected. Employ your rollback or backup restore plan if needed.Maintain. Subscribe to notifications that alert you to vulnerabilities as they arereported. Begin the patch management process again.The Role of MBSA in Patch ManagementThe Microsoft Baseline Security Analyzer (MBSA) is a tool that is designed for twopurposes: first, to scan a computer against vulnerable configurations; and second,to detect the availability of security updates that are released by Microsoft.In this How To, you use MBSA without scanning for vulnerable configurations. Whenusing the graphical user interface (GUI), specify this by unchecking the options inFigure 1 and only choosing Check for security updates.Figure 1MBSA scan optionsWhen using the command line interface (Mbsacli.exe), you can use the followingcommand to scan only missing security updates.Mbsacli.exe /n OS+IIS+SQL+PASSWORDThe option /n specifies the checks to skip. The selection (OS+IIS+SQL+PASSWORD)skips the checks for vulnerabilities and weak passwords.For more details about using MBSA, including the security configuration scan,see “How To: Use MBSA” in the How To section of this guide.Backups and Patch ManagementYou should perform backups prior to deploying an update on production servers.Regularly test backups as well as your backup process. Discovering that your backupprocess is broken during restoration can be devastating.
How To: Implement Patch Management 747Before You BeginThis section provides information about downloads and documentation that areneeded before you walk through the steps in this How To.Tools You Will NeedYou need the following tools in order to be able to perform the steps in this How To:● Microsoft Baseline Security Analyzer (MBSA)Download MBSA from the MBSA Home Page: http://www.microsoft.com/technet/treeview/default.asp?url=/technet/security/tools/Tools/mbsahome.asp●●Latest Mssecure.cabBy default, MBSA downloads the latest update list (Mssecure.cab) fromMicrosoft.com. If you do not have Internet access from the computer runningMBSA, you must download the file and copy it to the MBSA installation directory.You can download the update file from: http://download.microsoft.com/download/xml/security/1.0/NT5/EN-US/mssecure.cabMicrosoft Software Update Service (SUS)Microsoft Software Update Services (SUS) Server 1.0 enables administrators todeploy critical updates to Windows 2000-based, Windows XP, and WindowsServer 2003 computers. You can download it from: http://www.microsoft.com/downloads/details.aspx?FamilyId=A7AA96E4-6E41-4F54-972C-AE66A4E4BF6C&displaylang=enContentsThis How To shows you how to implement each phase of the patch managementprocess. These phases include:● Detecting● Assessing● Acquiring● Testing● Deploying● Maintaining
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Contents xxxiiiSummary ............
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Contents xxxvIndex of Checklists 68
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ForewordsForeword by Mark CurpheyWh
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Part IIntroduction to Threats andCo
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3Threat ModelingIn This Chapter●
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Part IIDesigning SecureWeb Applicat
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8Code Access Security in PracticeIn
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Part IVSecuring Your Network,Host,
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18Securing Your Database ServerIn T
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21Code ReviewIn This Chapter●●
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Related Security ResourcesRelated M
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patterns & practicesProven practice
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