Hacktricks =link= | Port 5357

To help tailor this guide to your specific security assessment, let me know:

This article acts as a to port 5357: what it is, how to enumerate it, misconfigurations, vulnerabilities, and how to abuse it for lateral movement.

Port 5357 runs the Web Services on Devices API over HTTP (WSDAPI). It allows Windows machines to discover and control devices on a local network using standard web service protocols. Why is it Exposed? port 5357 hacktricks

, a Microsoft service designed to let devices like printers and scanners "plug-and-play" over a network. While helpful for office efficiency, it was a known Information Disclosure

Because Port 5357 is processed by the Windows kernel-mode device driver http.sys , it is inherently vulnerable to flaws affecting that specific driver. To help tailor this guide to your specific

Configure Windows Defender Firewall to allow traffic on TCP port 5357 exclusively from the local subnet ( LocalSubnet ). Keep Systems Updated

Because this service relies heavily on the core Windows network stack, applying monthly cumulative Microsoft quality updates ensures that any newly discovered vulnerabilities in http.sys or the WSD API are neutralized before exploitation can occur. Why is it Exposed

Port 5357 should typically only be open on local, trusted networks.

If the target is a physical device (like a multi-function printer), interacting with the WSD API can expose: Device manufacturer and model numbers. Firmware versions. Configured network shares or destination folders. 4. Attack Surface and Lateral Movement

If the service must remain active for local device discovery (such as office printing), ensure that Port 5357 is strictly blocked at the network perimeter firewall and restricted to trusted local subnets via the Windows Defender Firewall.