Port 5357 Hacktricks _best_ -

Port 5357 is typically used for the service, often associated with the Web Services Dynamic Discovery (WS-Discovery) protocol.

You can attempt to brute-force directories or use specialized tools to look for valid endpoints. If an endpoint is accessible, it will return XML data containing device metadata. 3. Potential Vulnerabilities and Attack Vectors

This port opens automatically when Network Discovery is set to "Private" or "Domain" profiles inside the Windows Advanced Sharing Control Panel. Enumeration Techniques port 5357 hacktricks

Since port 5357 responds to HTTP requests, it can sometimes be targeted in NTLM relay scenarios. If an attacker forces an administrative account to authenticate against a malicious listener, that authentication can be relayed to port 5357 on a target machine to gather data or execute actions if the service configuration allows. Network Mapping

A typical result reveals the Microsoft HTTPAPI httpd server: Port 5357 is typically used for the service,

Use specialized tools that understand WS-Discovery to query the service for device descriptions. 3. Security Risks and Potential Exploitation

If you manage to exploit the vulnerable service, you can deploy standard post-exploitation toolkits like for credential dumping, PowerShell Empire for further enumeration, or Cobalt Strike for long-term persistence. If an attacker forces an administrative account to

When Windows detects other computers or devices (like printers) on the network, it often interacts through this endpoint to fetch XML-based metadata about the host capability. 2. Enumeration and Information Gathering

While WSD is a convenient feature for local networks, it is often overlooked in security assessments. When left exposed or misconfigured, port 5357 can become a significant attack vector, leading to information disclosure, lateral movement, and even remote code execution.

: The most severe risk comes from the service's history. A critical vulnerability, documented in Microsoft Security Bulletin MS09-063 and assigned CVE-2009-2512 , was found in the way WSDAPI processed the headers of Web Services messages. This memory corruption flaw allowed a remote attacker on the same subnet to send a specially crafted packet to TCP ports 5357 or 5358 and execute arbitrary code, potentially taking full control of the system. It's crucial to note: Microsoft released a patch for this vulnerability over a decade ago. However, unpatched legacy systems, or those with custom configurations, can still be vulnerable, as highlighted in the next section.