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Port 9191 Details


known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
9191 tcp applications Heap-based buffer overflow in SW3eng.exe in the eID Engine service in CA (formerly Computer Associates) eTrust Intrusion Detection and earlier allows remote attackers to cause a denial of service (application crash) via a long key length value to the remote administration port (9191/tcp).
References: [CVE-2007-1005], [BID-22743]

Sierra Wireless Airlink uses port 9191/TCP

PaperCut (print management system) uses these ports:
9191/tcp - HTTP
9192/tcp - HTTPS
9193/tcp - RPC (only for embedded copier/MFP solutions)

Sun AppSvr JPDA (old IANA registration)

Catamount Software - PocketMoney Sync (IANA official)
SG
9191 tcp,udp sun-as-jpda Sun AppSvr JPDA, registered 2005-11 IANA
2 records found
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Related ports: 9192  9193  

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External Resources
SANS ISC: port 9191

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 9191.
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by anonymous - 2021-03-21 07:03
This port is also used for Papercut, a print management system:
https://www.papercut.com/kb/Main/FirewallPorts
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