in Windows environments, often referred to in penetration testing resources like HackTricks as a target for service discovery and potential exploitation. 1. What is Port 5357? WSDAPI (Web Services for Devices API) - WSDAPI.dll.
The raw service probe returns a specific signature referencing Microsoft's internal HTTP daemon engine:
: Ensure regular installation of Microsoft monthly rollups to patch deep-seated vulnerabilities within the http.sys network driver stack.
Step 1: Open the Control Panel Step 2: Click on Windows Firewall/ Windows Defender firewall Step 3: Navigate to advanced settings. ManageEngine Penetration Testing: Re: Port 5357 -- Vista SP1 ??? port 5357 hacktricks
is used by the Web Services for Devices API (WSDAPI) , a Microsoft protocol for discovering and communicating with devices like printers and scanners over HTTP in local networks. PentestPad
, 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
Isolate critical systems, such as healthcare or industrial endpoints, on dedicated network segments. This ensures that even if a device on a less trusted network is compromised, the attacker cannot pivot to a critical asset via port 5357 . in Windows environments, often referred to in penetration
Ensure the Windows Firewall is active to restrict connections to the local network (LAN) only, preventing exposure to wider network segments. Patch Management:
Get-CimInstance -Namespace root\standardcimv2 -ClassName MSFT_WSDDeviceProxy Use code with caution. 5. Defense and Mitigation Firewall Hardening
Port 5357 runs the over HTTP. It enables device-centric communication using WS-Discovery, allowing client machines to discover network-attached peripherals and resources. Protocol : TCP Service : Web Services for Devices (WSD) / Network Discovery WSDAPI (Web Services for Devices API) - WSDAPI
The most common vulnerability on this port is leaking metadata. Attackers can often retrieve: and computer names. Printer/Scanner models and manufacturer details. Internal network paths and device metadata useful for further targeting. PentestPad 3. Enumeration via Browser
Because the service relies on the Windows http.sys driver to handle HTTP requests, it is susceptible to any core OS vulnerabilities affecting that driver.