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Port 8090 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
8090 tcp http_alt_alt Another HTTP Alternate (http_alt_alt)used as an alternative to port 8080.

Applications using this port: WebcamXP, Atlassian Confluence, Matrix identity server, Coral Content Distribution Network
Trojans that use this port: Aphex's Remote Packet Sniffer (Asniffer)

Trojan.Heloag [Symantec-2010-041512-2356-99] (2010.04.15) - a trojan horse that opens a back door and may download more files on to the compromised computer

EMC Data Protection Advisor could allow a remote attacker to execute arbitrary code on the system, caused by an error in the exposed EJBInvokerServlet servlet within the DPA_Illuminator.exe service. By sending a specially-crafted object to TCP ports 8090 or 8453, an attacker could exploit this vulnerability to execute arbitrary code NT AUTHORITY\SYSTEM privileges.
References: [XFDB-89534], [EDB-30211]

Vivint SkyControl Panel could allow a remote attacker to bypass security restrictions, caused by the failure to restrict access permissions in Web interface. By sending a specially-crafted request, an attacker could exploit this vulnerability using port 8090 to bypass access restrictions and modify security settings.
References: [CVE-2014-8362], [XFDB-111196]

Siemens SPPA-T3000 Application Server could allow a remote attacker to obtain sensitive information, caused by improper access control. By sending specially-crafted packets to 8090/tcp, an attacker could exploit this vulnerability to obtain filenames information, and use this information to launch further attacks against the affected system.
References: [CVE-2019-18333], [CVE-2019-18334], [XFDB-173119], [XFDB-173120]

In Contour ( Ingress controller for Kubernetes) before version 1.7.0, a bad actor can shut down all instances of Envoy, essentially killing the entire ingress data plane. GET requests to /shutdown on port 8090 of the Envoy pod initiate Envoy's shutdown procedure. The shutdown procedure includes flipping the readiness endpoint to false, which removes Envoy from the routing pool. When running Envoy (For example on the host network, pod spec hostNetwork=true), the shutdown manager's endpoint is accessible to anyone on the network that can reach the Kubernetes node that's running Envoy. There is no authentication in place that prevents a rogue actor on the network from shutting down Envoy via the shutdown manager endpoint. Successful exploitation of this issue will lead to bad actors shutting down all instances of Envoy, essentially killing the entire ingress data plane. This is fixed in version 1.7.0.
References: [CVE-2020-15127]

IANA registered for: Vehicle to station messaging
8090 tcp HTTP Alternate (http_alt_alt) - used as an alternative to port 8080 (unofficial) Wikipedia
8090 tcp,udp trojan Aphex's Remote Packet Sniffer Trojans
8080,8090 tcp applications WebcamXP Portforward
8090 tcp,udp threat Asniffer Bekkoame
8090 tcp opsmessaging Vehicle to station messaging, registered 2017-02-08 IANA
8090 udp Reserved IANA
7 records found
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Related ports: 8080  8453  

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External Resources
SANS Internet Storm Center: port 8090

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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