To verify the service and probe for standard configurations, use Nmap with service detection flags: nmap -p 5357 -sV -sC Use code with caution.
The actual functionality resides on specific sub-paths. The standard endpoint used for device queries is /WSD/?WSDL or a generated UUID path.
A critical vulnerability ( MS09-063 / CVE-2009-2512) allowed unauthenticated RCE via specially crafted WSD headers on Windows Vista and Server 2008.
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Conclusion Treat 5357 as part of every internal attack-surface assessment. It’s not always a high-severity remote exploit by itself today, but its role in discovery and device management makes it a facilitator for reconnaissance and chaining attacks. The most effective defenses are simple: restrict exposure, disable unused services, segment devices, and watch for unexpected WS-Discovery/HTTPAPI activity.
Note: Seeing a "404 Not Found" or "503 Service Unavailable" response via a standard browser request is normal. The server requires specific endpoints or SOAP requests to yield data. Interacting via HTTP To verify the service and probe for standard
The initial scan revealed the target on the local network with TCP port 5357 open, tagged by nmap as the wsdapi service. Having identified this service, the next step was to inspect it manually.
Port 5357 is used by for device discovery and control (e.g., network scanners, printers, media servers). It's part of WSD (Web Services on Devices) — Microsoft's implementation of devices profile for web services (DPWS).
<xaddr>http://LEDGER-DC01:5357/37482...</xaddr> A critical vulnerability ( MS09-063 / CVE-2009-2512) allowed
Your first step should always be an Nmap scan to identify the service version and running scripts. nmap -p 5357 -sV -sC Use code with caution.
PORT STATE SERVICE VERSION 5357/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP) |_http-title: Service Unavailable Use code with caution.
Web Services expose specific endpoints for communication. Use tools like gobuster or ffuf to locate hidden paths, using a specialized web services wordlist.
, 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
Port 5357 can expose a system to several severe vulnerabilities depending on the underlying Windows patch level and service configuration. 1. HTTP.sys Remote Code Execution (CVE-2015-1635)