| Action | Context | | :--- | :--- | | | Is it a Windows PC, Server, Printer, or IoT device? | | Identify the Location | Is it a public IP or internal IP? | | If Public IP | Block immediately. This is a critical misconfiguration. | | If Internal IP | Verify VLAN segmentation. Is it crossing firewall zones? | | Verify Scope | Is the host firewall rule set to Any instead of LocalSubnet ? | | Patch Management | Ensure the host is patched against historical WSDAPI RCEs (CVE-2010-0020). |
<ThisDevice> <FriendlyName>HP LaserJet Pro M402dn</FriendlyName> <FirmwareVersion>20240312</FirmwareVersion> <SerialNumber>CNB3K5L2Q7</SerialNumber> </ThisDevice> 5357/tcp open wsdapi
Port 5357/tcp with wsdapi is a in Windows networks but creates an unnecessary information leak and attack vector when exposed beyond the local subnet. Assessment should verify whether WSD is required for business operations; if not, disable the service and filter traffic at network boundaries. | Action | Context | | :--- |
(simplified):
Informational Windows Home editions enable this by default to help users find smart TVs, printers, and Xbox consoles. This is a critical misconfiguration