CyberHunter
Local dataset, no network
// Databases & caches

Port 448: DDM-Remote DB Access Using Secure Sockets

Port 448 is assigned by IANA to ddm-ssl (DDM-Remote DB Access Using Secure Sockets).

448

How ddm-ssl works

Databases & caches
app:448ddm-ssl app:448ddm-ssl

The application sends a SQL query to the ddm-ssl server on port 448, which returns rows from its tables.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Databases & caches
01 Security

Is port 448 dangerous?

We have no specific security note for port 448. Its risk depends on the program actually listening on it. General advice for databases & caches services:

  • Bind the service to localhost or a private network, never to a public address.
  • Enable authentication, use per-application accounts and require TLS.
  • Watch for exposed Docker ports: publish them on 127.0.0.1 only.
02 Registry

IANA registry entries for port 448

ServicePortTransportDescriptionReferenceUpdated
ddm-ssl 448 TCP, UDP DDM-Remote DB Access Using Secure Sockets - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 448, and is it reachable?

Linux

sudo ss -ltnup 'sport = :448'      # process listening on 448
sudo lsof -nP -i :448

macOS

sudo lsof -nP -i :448

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 448 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 448
netstat -ano | findstr :448

From another machine

nmap -p 448 -sV <host>
sudo nmap -sU -p 448 <host>
nc -zv <host> 448

Block it in the firewall

sudo ufw deny 448/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 448" -Direction Inbound -LocalPort 448 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 448 used for?

Port 448 is assigned by IANA to ddm-ssl (DDM-Remote DB Access Using Secure Sockets).

Is port 448 TCP or UDP?

Port 448 is registered for TCP and UDP.

Is it safe to open port 448?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Bind the service to localhost or a private network, never to a public address.

How do I check if port 448 is open?

On Linux run "ss -ltnup 'sport = :448'", on macOS "lsof -nP -i :448", and on Windows "netstat -ano | findstr :448" to see the local process. From another machine, "nmap -p 448 <host>" shows whether it is reachable.

05 Related
:3306 MySQL / MariaDB tcp · udp · high risk :1433 Microsoft SQL Server tcp · udp · high risk :5432 PostgreSQL tcp · udp · high risk :6379 Redis tcp · critical risk :27017 MongoDB tcp · critical risk :9200 Elasticsearch tcp · udp · critical risk :1521 Oracle Database tcp · udp · high risk :11211 Memcached tcp · udp · high risk

Latest vulnerability news

All news