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known port assignments and vulnerabilities
Premid
Port(s)ProtocolServiceDetailsSource
3020 tcp,udpapplicationsmanagers/socketManager.ts in PreMiD through 2.1.3 has a locally hosted socketio web server (port 3020) open to all origins, which allows attackers to obtain sensitive Discord user information.
References: [CVE-2020-24928], [XFDB-187537]
SG
3020 tcp,udpcifsCIFSIANA

PreMiD is a simple, configurable utility that allows you to show what you're doing on the web in your Discord now playing status. For example, when you start watching a video on YouTube our extension grabs all the information needed from the page and sends it to our application which then sets the status in your Discord profile. How to install PreMiD. Before going any further, make sure your system meets all the. 🧩 Source code of the official PreMiD extension. Contribute to PreMiD/Extension development by creating an account on GitHub.

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External Resources
SANS Internet Storm Center: port 3020

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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.

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Related Links:

Premid Firefox

  • SG Ports Database » Vulnerable Ports
  • SG Security Scan » Scanned Ports » Commonly Open Ports




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