From IIS 8.5 Site Security Technical Implementation Guide
Part of SRG-APP-000141-WSR-000086
Associated with: CCI-000381
A web server may host too many applications. Each application will need certain system resources and privileged operations to operate correctly. An application's trust level determines the permissions granted by the ASP.NET Code Access Security (CAS) policy. An application with full trust permissions may access all resource types on a server and perform privileged operations, while applications running with partial trust have varying levels of operating permissions and access to resources. The CAS determines the permissions granted to the application on the server. Setting a level of trust compatible with the applications will limit the potential harm a compromised application could cause to a system. The web server must be configured to contain and control the applications and protect the system resources and privileged operations from those not needed by the application for operation.
Note: If the server being reviewed is a non-production website, this is Not Applicable. Note: Setting a web application Trust Level to MEDIUM may deny some application permissions. If compatibility issues with applications require trust level to be less than "Medium", this check can be downgraded to a Cat III with supporting documentation from the ISSO, Follow the procedures below for each site hosted on the IIS 8.5 web server: Open the IIS 8.5 Manager. Click the site name under review. Double-click the ".NET Trust Level" icon. If the ".NET Trust Level" is not set to Medium or less, this is a finding.
Note: If the server being reviewed is a non-production website, this is Not Applicable. Follow the procedures below for each site hosted on the IIS 8.5 web server: Open the IIS 8.5 Manager. Click the site name under review. Double-click the ".NET Trust Level" icon. Set the ".NET Trust Level" to Medium or less and click “Apply”. Select "Apply" from the "Actions" pane.
Lavender hyperlinks in small type off to the right (of CSS
class id, if you view the page source) point to
globally unique URIs for each document and item. Copy the
link location and paste anywhere you need to talk
unambiguously about these things.
You can obtain data about documents and items in other
formats. Simply provide an HTTP header Accept:
text/turtle or
Accept: application/rdf+xml.
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