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XCCDF
Microsoft IIS 10.0 Server Security Technical Implementation Guide
SRG-APP-000141-WSR-000075
An IIS Server configured to be a SMTP relay must require authentication.
An IIS Server configured to be a SMTP relay must require authentication.
An XCCDF Rule
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An IIS Server configured to be a SMTP relay must require authentication.
Medium Severity
<VulnDiscussion>Anonymous SMTP relays are strictly prohibited. An anonymous SMTP relay can be a vector for many types of malicious activity not limited to server exploitation for the sending of SPAM mail, access to emails, phishing, DoS attacks, etc. Enabling TLS, authentication, and strictly assigning IP addresses that can communicate with the relay greatly reduce the risk of the implementation.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>