4848
GlassFish Admin
High RiskTCP — Web
Port Overview
Port Number
4848
Service Name
GlassFish Admin
Transport Protocol
TCP
Category
Web
Security Risk
High
Port Range
Registered (1024-49151)
What is Port 4848?
Port 4848 is the default administrative console port for Oracle GlassFish Server, a Java EE application server. The web-based administration interface is accessible via HTTPS on this port for deploying applications, configuring resources, and monitoring server health. Exposure of this port to the internet can allow unauthorized administrative access.
TCP
Web
Security Considerations
Port 4848 (GlassFish Admin) is classified as high risk. This port is a common target for automated scanning and brute-force attacks. If you must expose it, restrict access to known IP addresses.
Recommendation: Use firewall rules to whitelist trusted IPs. Enable rate limiting and intrusion detection.