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XCCDF
Microsoft IIS 10.0 Site Security Technical Implementation Guide
SRG-APP-000246-WSR-000149
Unlisted file extensions in URL requests must be filtered by any IIS 10.0 website.
Unlisted file extensions in URL requests must be filtered by any IIS 10.0 website.
An XCCDF Rule
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Unlisted file extensions in URL requests must be filtered by any IIS 10.0 website.
Medium Severity
<VulnDiscussion>Request filtering enables administrators to create a more granular rule set to allow or reject inbound web content. Setting limits on web requests helps to ensure availability of web services and may also help mitigate the risk of buffer overflow type attacks. The allow unlisted property of the "File Extensions Request" filter enables rejection of requests containing specific file extensions not defined in the "File Extensions" filter. Tripping this filter will cause IIS to generate a Status Code 404.7.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>