Port 2484Oracle SSL Listener
Port 2484 is primarily used by Oracle Database systems to accept SSL-encrypted client connections to the Oracle Net Listener service. This secure communication channel ensures confidentiality and integrity of data transmitted between Oracle clients and the database server..
- transport
- tcp · udp
- in transit
- encrypted
- assignment
- official
- risk
- 4/10
- lookups
- 25,049
2 transports registered
payload protected on the wire
registered with iana
caution
rank 68 of 993 · top 7%
Technical Details
what runs on :2484Port 2484 is designated for Oracle Net Listener (commonly known as 'TNS Listener') when configured to handle incoming SSL-encrypted connections. Oracle databases use this listener service as the primary entry point for client-server communication, managing connection requests and routing them appropriately based on database service metadata.
When SSL is enabled, network traffic is encrypted to prevent eavesdropping, tampering, and impersonation threats. The SSL implementation supports mutual authentication via digital certificates, thus enhancing trust between client and server. Oracle Listener configured on 2484 typically coexists with standard listener on port 1521 which handles unencrypted traffic, but 2484 is dedicated to secure communication.
Supporting both TCP and UDP, port 2484 facilitates reliable connection-oriented traffic via TCP and connectionless scenarios via UDP. The SCTP protocol is not generally used with Oracle Listeners, so SCTP status is false by default. Proper SSL configuration requires managing wallet files and valid certificate chains within Oracle Database configurations.
Security Information
exposure of :2484risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
security averages 3.8 across 216 ports — this one sits 0.2 above.
in transit
encrypted
payloads are protected on the wire
assignment
official
registered with iana for this service — scanners fingerprint it by number
reachable over
tcp · udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
Common Vulnerabilities:
- Man-in-the-middle attacks if SSL/TLS is misconfigured or weak cipher suites are used
- Credential interception if encryption is disabled or improperly implemented
- Buffer overflows in older Oracle listener implementations subject to exploit
- Certificate spoofing if certificate validation is inadequate
- Brute-force attacks against weak administrator passwords or poorly configured access controls
Common Mitigations:
- Enable SSL/TLS with strong encryption protocols and cipher suites
- Regularly update Oracle Listener and database software to patch vulnerabilities
- Use mutual SSL authentication with valid, trusted certificates
- Restrict access using Oracle's IP filtering and firewall rules
- Enforce strong password policies for administrative accounts
- Monitor listener logs for suspicious activity
- Disable or filter UDP traffic if it is not explicitly needed
- Limit exposed listener services to internal networks whenever possible
Related Ports
the 8 most looked-up other ports in security — 216 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8881 | Atlasz Secure Server | TCP | Web Services | caution | 67.6k |
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| :8291 | Winbox MikroTik Admin | TCP | Security | caution | 62.9k |
| :3268 | Microsoft Global Catalog (GC) | TCPUDP | Security | caution | 54.6k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :3128 | Squid Proxy HTTP | TCP | Web Services | caution | 45.8k |
| :8080 | HTTP Alternate | TCPtls | Web Services | caution | 44.9k |
| :7000 | Vuze HTTPS Tracker | TCPtls | Security | caution | 28.9k |
risk mix of the 8 listed
- caution100%
3 of 8 encrypted