Port 5357 Hacktricks Fixed 🏆 🚀

From a security perspective, port 5357 is often scrutinized for potential information leakage. Even without active exploitation, an open port 5357 can disclose:

She closed her laptop and rubbed her temples. The headache was still there, but the satisfaction of a successful find dulled the pain.

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 )

Operational guidance for red teams and defenders port 5357 hacktricks

The machine on Port 5357 had just introduced itself. It wasn't just a workstation; LEDGER-DC01 was a Domain Controller. The most sensitive machine in the entire infrastructure, the keys to the kingdom, was responding to anonymous queries on a port that should have been firewalled.

When you encounter port 5357 open in an Nmap scan, it is typically listed as wsdapi or http (HTTPAPI). nmap -p 5357 -sV -sC Use code with caution. Information Gathering Techniques

Exposed printer admin pages may allow attackers to intercept print jobs or move through the network. Notable Vulnerabilities From a security perspective, port 5357 is often

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.

To advance your network penetration testing capabilities, you can explore related service exploitation. Let me know if you would like to look into via LLMNR/NBT-NS spoofing or if you want to examine Active Directory lateral movement techniques. Share public link

Let's steer towards the information related to HackTricks, which seems to be what you're looking for: If the WS-Discovery service is misconfigured or poorly

An attacker inside a compromised network can scan for port 5357 across the subnet. Because it indicates a Windows environment or network-connected office hardware, it helps map out where the high-value workstation and printing infrastructure resides. 5. Defensive Hardening and Mitigation

: Most secure or default configurations will return a 404 Not Found or 400 Bad Request error for the root directory. However, the server header ( Server: Microsoft-HTTPAPI/2.0 ) confirms the presence of a Windows host utilizing the HTTP protocol stack ( http.sys ). URL Path Brute Forcing

WSD often broadcasts the actual name of the computer or printer.