Improving Web Application Security: Threats and - CGISecurity

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468 Part IV: Securing Your Network, Host, and ApplicationTable 16.4 Snapshot of a Secure Web Server (continued)ComponentCharacteristicsSites and VirtualDirectories (continued)Folders with Anonymous access restrict Write and Execute Webpermissions.Secured folders that allow content authoring allow Script Source AccessWeb permissions while all other folders do not.FPSE is removed if not required.Script Mappings Unused script-mappings are mapped to 404.dll: .idq, .htw , .ida , .shtml ,.shtm , .stm , idc, .htr , .printer.Note The 404.dll is installed when you run the IIS Lockdown tool.ISAPI FiltersIIS MetabaseMachine.configHttpForbiddenHandlerRemotingUnused ISAPI filters are removed.Access to IIS Metabase is restricted with NTFS permissions.Banner information is restricted; the content location in HTTP responseheaders is hidden.Protected resources are mapped to System.Web.HttpForbiddenHandler.NET Remoting is disabled.traceTrace information and detailed error information is not returned to theclient:compilationDebug compiles are disabledcustomErrorsError details are not returned to the client:A generic error page writes errors to the Event Log.sessionStateSession State is disabled if not needed:
Chapter 16: Securing Your Web Server 469Table 16.4 Snapshot of a Secure Web Server (continued)ComponentCharacteristicsCode Access SecurityCode Access Security Code Access Security is enabled for the machine.caspol -s OnLocalIntranet_ZoneInternet_ZoneLocal intranet zone has no permissions:PermissionSet=NothingInternet zone has no permissions:PermissionSet=NothingStaying SecureYou need to monitor the security state of your server and update it regularly to helpprevent newly discovered vulnerabilities from being exploited. To help keep yourserver secure:● Audit group membership.●●●●Monitor audit logs.Stay current with service packs and patches.Perform security assessments.Use security notification services.Audit Group MembershipKeep track of user group membership, particularly for privileged groups such asAdministrators. The following command lists the members of the Administratorsgroup:net localgroup administratorsMonitor Audit LogsMonitor audit logs regularly and analyze the log files by manually viewing them oruse the technique describe in Microsoft Knowledge Base article 296085, “How To: UseSQL Server to Analyze Web Logs.”
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Contents xxvii.NET Remoting Securit
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Contents xxxiASP.NET Architecture o
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Contents xxxiiiSummary ............
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Contents xxxvIndex of Checklists 68
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Contents xxxixHow ToIndex 743How To
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Contents xliRestricting Server-to-S
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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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Part IIIBuilding Secure WebApplicat
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8Code Access Security in PracticeIn
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Part IVSecuring Your Network,Host,
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21Code ReviewIn This Chapter●●
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patterns & practicesProven practice
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