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Port 5050 Details


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Port(s) Protocol Service Details Source
5050 tcp trojans Yahoo Messenger uses this port.

BT Communicator uses ports 5050-5070 (TCP/UDP).

EOSCoreScada.exe in C3-ilex EOScada before 11.0.19.2 allows remote attackers to cause a denial of service (daemon restart) by sending data to TCP port (1) 5050 or (2) 24004.
References: [CVE-2012-1810]

R0xr4t [Symantec-2002-082915-1621-99], a.k.a. RoxRat backdoor, BD R0xr4t 1.0. Uses ports 5050,50551,50552,60551,60552.
SG
5050 udp applications Saia Burgess Controls (SBC) PCD through 2022-05-06 uses a Broken or Risky Cryptographic Algorithm. According to FSCT-2022-0063, there is a Saia Burgess Controls (SBC) PCD S-Bus weak credential hashing scheme issue. The affected components are characterized as: S-Bus (5050/UDP) authentication. The potential impact is: Authentication bypass. The Saia Burgess Controls (SBC) PCD controllers utilize the S-Bus protocol (5050/UDP) for a variety of engineering purposes. It is possible to configure a password in order to restrict access to sensitive engineering functionality. Authentication is done by using the S-Bus 'write byte' message to a specific address and supplying a hashed version of the password. The hashing algorithm used is based on CRC-16 and as such not cryptographically secure. An insecure hashing algorithm is used. An attacker capable of passively observing traffic can intercept the hashed credentials and trivially find collisions allowing for authentication without having to bruteforce a keyspace defined by the actual strength of the password. This allows the attacker access to sensitive engineering functionality such as uploading/downloading control logic and manipulating controller configuration.
References: [CVE-2022-30320]
SG
5050 tcp Yahoo! Messenger (unofficial) Wikipedia
5050 tcp trojan R0xr4t Trojans
2000-2021,5050-5070 udp applications BT Communicator Portforward
5000-5001,5050 tcp applications Yahoo Messenger Chat Portforward
5050 tcp yahoo-server Yahoo Messenger Server (default port) Neophasis
5050 tcp,udp Common for eggdrop Bekkoame
5050 tcp,udp mmcc multimedia conference control tool IANA
9 records found
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Related ports: 24004  24006  50551  50552  60551  60552  

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External Resources
SANS ISC: port 5050

Notes:
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.

Please use the "Add Comment" button below to provide additional information or comments about port 5050.
  User Reviews/Comments:
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by anonymous - 2016-04-26 21:05
Port 5050 is the default port used by Comcast's speed test servers at speedtest.comcast.net.
by anonymous - 2016-10-06 22:01
telemetry.microsoft.com.5050 check with process explorer
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