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// Web

Port 2948: WAP PUSH

Port 2948 is assigned by IANA to wap-push (WAP PUSH).

2948

How wap-push works

Web
browser:2948wap-push browser:2948wap-push

A browser sends an HTTP request to port 2948 and the wap-push server sends the page back.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Web
01 Security

Is port 2948 dangerous?

We have no specific security note for port 2948. Its risk depends on the program actually listening on it. General advice for web services:

  • Serve it over HTTPS only and check the HTTP security headers.
  • Keep admin consoles and development servers off the Internet.
  • Patch the application server and remove default credentials and sample apps.
02 Registry

IANA registry entries for port 2948

ServicePortTransportDescriptionReferenceUpdated
wap-push 2948 TCP, UDP WAP PUSH - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2948, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2948'      # process listening on 2948
sudo lsof -nP -i :2948

macOS

sudo lsof -nP -i :2948

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2948 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2948
netstat -ano | findstr :2948

From another machine

nmap -p 2948 -sV <host>
sudo nmap -sU -p 2948 <host>
nc -zv <host> 2948

Block it in the firewall

sudo ufw deny 2948/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2948" -Direction Inbound -LocalPort 2948 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2948 used for?

Port 2948 is assigned by IANA to wap-push (WAP PUSH).

Is port 2948 TCP or UDP?

Port 2948 is registered for TCP and UDP.

Is it safe to open port 2948?

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. Serve it over HTTPS only and check the HTTP security headers.

How do I check if port 2948 is open?

On Linux run "ss -ltnup 'sport = :2948'", on macOS "lsof -nP -i :2948", and on Windows "netstat -ano | findstr :2948" to see the local process. From another machine, "nmap -p 2948 <host>" shows whether it is reachable.

05 Related
:443 HTTPS tcp · udp · sctp · low risk :80 HTTP tcp · udp · sctp · moderate risk :8080 HTTP alternate tcp · udp · high risk :8443 HTTPS alternate tcp · udp · moderate risk :3000 Dev servers / Grafana tcp · udp · moderate risk :5000 Flask / Docker registry / UPnP tcp · udp · moderate risk :8000 HTTP alternate (dev) tcp · udp · moderate risk :8888 Jupyter / HTTP alternate tcp · udp · high risk

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