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WN25-00-000420 Windows Server 2025 FTP servers must be configured to prevent anonymous logons.

DISA STIG library V1R4
All changes in this version
first version loaded CAT II

Maps to CM-6 via CCI-000366

Title

Windows Server 2025 FTP servers must be configured to prevent anonymous logons.

Control

If FTP is not installed on the system, this is not applicable. Open Internet Information Services (IIS) Manager. Select the server. Double-click "FTP Authentication". If the "Anonymous Authentication" status is "Enabled", this is a finding.

Discussion

The FTP service allows remote users to access shared files and directories. Allowing anonymous FTP connections makes user auditing difficult. Using accounts that have administrator privileges to log on to FTP risks that the userid and password will be captured on the network and give administrator access to an unauthorized user.

Related controls

CCI-000366

Fix

Configure the FTP service to prevent anonymous logons. Open IIS Manager. Select the server. Double-click "FTP Authentication". Select "Anonymous Authentication". Select "Disabled" under "Actions".