Port 5357 Hacktricks

Block port 5357 at the network perimeter. It should never be exposed to the public internet.

A critical vulnerability ( MS09-063 ) previously allowed remote code execution through specially crafted WSD messages on ports 5357/5358. While patched in modern systems, it serves as a reminder of the risks of leaving this API exposed.

With the initial foothold established, the attacker could move to the post-exploitation phase. In the documented simulation, the tester was able to execute a reverse shell payload—successfully receiving a remote command prompt back to their attack machine. port 5357 hacktricks

Do not run intrusive exploitation against systems you don’t own or have permission to test.

Defensive posture — practical, prioritized steps Block port 5357 at the network perimeter

If the WS-Discovery service is misconfigured or poorly restricted, unauthenticated attackers on the local network can query the endpoint to map internal device configurations. This includes: Computer hostnames Unique Device UUIDs Internal network configurations and interface details B. Exploiting the Underlying HTTP Stack ( http.sys )

You can attempt directory busting using targeted wordlists, though WSD interactions generally rely on structured SOAP requests rather than static URL pathways. 3. Gathering Host Information While patched in modern systems, it serves as

According to HackTricks, a website known for providing detailed guides on penetration testing and cybersecurity:

is tied to the Web Services for Devices API (WSDAPI) , a Microsoft implementation of the WS-Discovery protocol. It allows Windows operating systems to automatically discover and communicate with local network hardware like printers, scanners, and file shares. During penetration testing, locating an open port 5357 via infrastructure logs or tools like the