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Port 554 Details

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Port(s) Protocol Service Details Source
554 tcp ms-rtsp Port used by Real Time Streaming Protocol (RTSP) for Microsoft Windows Media streaming services and QuickTime Streaming Server (QTSS).

RTSP uses the following ports:
554 TCP - used for accepting incoming RTSP client connections and for delivering data packets to clients that are streaming by using RTSPT.
5004 UDP - used for delivering data packets to clients that are streaming by using RTSPU.
5005 UDP - used for receiving packet loss information from clients and providing synchronization information to clients that are streaming by using RTSPU.

Multiple Vivotek IP Camera products could allow a remote attacker to bypass security restrictions, caused by the improper validation of input. If RTSP authentication is set to basic, an attacker could send a specially-crafted request to TCP port 554 in order to bypass authentication and gain access to the RTSP live video stream.
References: [CVE-2013-4985] [XFDB-88567] [EDB-29516]

Multiple Vivotek IP Cameras products could allow a remote attacker to bypass security restrictions, caused by the failure to restrict access to the video stream. By sending specially-crafted RTSP packets to TCP port 554, an attacker could exploit this vulnerability to access the video stream without authentication.
References: [CVE-2013-1596] [XFDB-83945] [BID-59574]

See also: port 1755 - Microsoft Media Server (MMS) protocol
554 tcp,udp Real Time Streaming Protocol (RTSP) (official) Wikipedia
554 tcp,udp rtsp Real Time Stream Control Protocol SANS
80,554 tcp applications Orb Portforward
554 tcp,udp rtsp Real Time Stream Control Protocol Nmap
554 tcp,udp rtsp Real Time Streaming Protocol (RTSP) IANA
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Related ports: 1755  5004  5005  

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External Resources
SANS Internet Storm Center: port 554

Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming and realtime gaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

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