Windows Server 2003 Recommended Baseline Security

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Unclassified ITSG for Windows Server 2003 4.5.1.3 Maximum system log size MaximumLogSize = 76800 (in [System Log] section The ‘MaximumLogSize’ determines the size of the System event log. The setting ‘76800’ creates a 76800 KB log file. With an average of 500 bytes per event, this log file will accommodate over 153,000 events. This allows the system to run for an extended period-of-time without having to roll the log file. NOTE: Due to the wide variety of event loads, we recommend monitoring the log files during the initial operational period. 4.5.2 Guest Access 4.5.2.1 Prevent local Guests group from accessing Applications, Security, and System logs RestrictGuestAccess = 1(in [Application Log] or [Security Log] or [System Log] section) The ‘RestrictGuestAccess’ keyword determines if accounts with ‘guest’ access can access the log. The setting ‘1’ disallows guest access to the log. Access to log information provides an attacker with valuable information to mount attacks on the system or users. As a result, only users who are authenticated are given access to the log files. 4.5.3 Retention Method 4.5.3.1 Retention method for application log AuditLogRetentionPeriod = 2(in [Application Log] or [Security Log] or [System Log] section) The ‘AuditLogRetentionPeriod’ keyword determines the system behaviour when the log is full. The setting ‘2’ shuts the system down if the log cannot be written. Use of this setting should be consistent with departmental log retention policy. 4.6 System Services A large number of services are disabled in this guide. With each disabled service, we provide justification for the recommendation. In some cases, a more flexible approach may be needed. It is important to note that a disabled service may only be required occasionally. For example, the Performance Logs and Alerts service is disabled. However, to help fulfill a specific temporary need, the Administrator could enable a service, resolve an issue, and return the service to the original configuration. 70 March 2004 Server Policy Files
Windows Server 2003 Recommended Baseline Security (ITSG-20) 4.6.1 Services Explicitly Covered by Microsoft Guidance 4.6.1.1 Alerter "alerter", 4, "D:AR(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCDCLCSWRPWPDTLOC RSDRCWDWO;;;SY)(A;;CCLCSWLOCRRC;;;IU)S:(AU;FA;CCDCLCSWRPWPDTLOCRS DRCWDWO;;;WD)" The Alerter service notifies selected users and computers of administrative alerts. This policy disables this service. 4.6.1.2 Application Layer Gateway Service "alg", 4, "D:AR(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCDCLCSWRPWPDTLOC RSDRCWDWO;;;SY)(A;;CCLCSWLOCRRC;;;IU)S:(AU;FA;CCDCLCSWRPWPDTLOCRS DRCWDWO;;;WD)" The Application Layer Gateway Service is a subcomponent of the Internet Connection Sharing (ICS) / Internet Connection Firewall (ICF) Service. This supports independent software vendor plug-ins to allow proprietary protocols through the firewall and work behind ICS. This policy disables the service. 4.6.1.3 Application Management "appmgmt", 4, "D:(A;;CCLCSWLOCRRC;;;IU)(A;;GA;;;BA)(A;;GA;;;SY)S:(AU;FA;CCDCLCSWRPWPD TLOCRSDRCWDWO;;;WD)" Application Management provides software installation services. This policy disables the service. 4.6.1.4 ASP .NET State Service "aspnet_state", 4, "D:(A;;CCLCSWLOCRRC;;;IU)(A;;GA;;;BA)(A;;GA;;;SY)S:(AU;FA;CCDCLCSWRPWPD TLOCRSDRCWDWO;;;WD)" The ASP .NET State Service provides support for out-of-process session states for ASP .NET. This policy disables the service. 4.6.1.5 Automatic Updates "wuauserv", 4, "D:AR(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCDCLCSWRPWPDTLOC RSDRCWDWO;;;SY)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)" Server Policy Files March 2004 71
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Windows Server 2003 Recommended Baseline Security

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