Security Group RDP (3389) Port Open to Public

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Last Updated:

April 21, 2022

An unused AWS Security Group allows public access to the Remote Desktop Protocol (RDP) port (3389). RDP is used for administrative access to Windows operating systems and is an attractive target for attackers. Unused Security Groups should be removed, or if re-assigned, remove or restrict the inbound rule allowing RDP (port 3389) in this Security Group.