CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Monitoring & logging

Port 1088: CPL Scrambler Alarm Log

Port 1088 is assigned by IANA to cplscrambler-al (CPL Scrambler Alarm Log).

1088

How cplscrambler-al works

Monitoring & logging
monitoringdevicecplscrambler-al monitoringdevicecplscrambler-al

The monitoring server collects metrics, alerts or logs from devices over port 1088.

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
Monitoring & logging
01 Security

Is port 1088 dangerous?

We have no specific security note for port 1088. Its risk depends on the program actually listening on it. General advice for monitoring & logging services:

  • Restrict management and monitoring protocols to the monitoring network.
  • Replace community strings and default credentials.
  • Send logs over TLS.
02 Registry

IANA registry entries for port 1088

ServicePortTransportDescriptionReferenceUpdated
cplscrambler-al 1088 TCP, UDP CPL Scrambler Alarm Log - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1088, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1088'      # process listening on 1088
sudo lsof -nP -i :1088

macOS

sudo lsof -nP -i :1088

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1088 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1088
netstat -ano | findstr :1088

From another machine

nmap -p 1088 -sV <host>
sudo nmap -sU -p 1088 <host>
nc -zv <host> 1088

Block it in the firewall

sudo ufw deny 1088/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1088" -Direction Inbound -LocalPort 1088 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1088 used for?

Port 1088 is assigned by IANA to cplscrambler-al (CPL Scrambler Alarm Log).

Is port 1088 TCP or UDP?

Port 1088 is registered for TCP and UDP.

Is it safe to open port 1088?

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. Restrict management and monitoring protocols to the monitoring network.

How do I check if port 1088 is open?

On Linux run "ss -ltnup 'sport = :1088'", on macOS "lsof -nP -i :1088", and on Windows "netstat -ano | findstr :1088" to see the local process. From another machine, "nmap -p 1088 <host>" shows whether it is reachable.

05 Related
:161 SNMP udp · tcp · high risk :162 SNMP trap udp · tcp · moderate risk :9090 Prometheus / admin consoles tcp · udp · high risk :514 Syslog udp · tcp · moderate risk :6514 Syslog over TLS tcp · udp · dccp · low risk :5601 Kibana tcp · udp · high risk :391 SynOptics SNMP Relay Port tcp · udp :412 Trap Convention Port tcp · udp

Latest vulnerability news

All news