Port 2420Westell Remote Access
Westell Remote Access is primarily associated with remote management services for Westell broadband networking devices. It facilitates configuration, monitoring, and troubleshooting of Westell hardware over a network, typically by service providers or administrators. The protocol supports device firmware updates and status queries, aiming to streamline operations and reduce on-site visits..
- transport
- udp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 4,237
single transport
payload readable on path
registered with iana
caution
rank 977 of 993 · top 98%
Technical Details
what runs on :2420Overview: Westell Remote Access on Port 2420 serves as a pathway for network administrators or ISPs to manage Westell telecommunications equipment remotely. This typically involves administrative commands sent over UDP, considering the port’s configuration, to interact with device firmware, modify settings, or perform diagnostics.
Protocol Characteristics: The protocol is likely proprietary and optimized for Westell hardware. It handles lightweight command-and-control data suitable for configuration changes or status monitoring. Given its UDP nature, it favors faster transmissions over guaranteed delivery, which may be acceptable for network management tasks where rapid response is prioritized over occasional packet loss.
Deployment: Commonly enabled on ISP-managed DSL modems and broadband gateways from Westell, Port 2420 allows backend remote access often reserved for trusted administrative domains. Direct exposure to the wider internet is typically discouraged, and usage is predominantly through internal or VPN-protected channels.
Security Information
exposure of :2420risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
remote access averages 4.0 across 110 ports — this one sits level with it.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
official
registered with iana for this service — scanners fingerprint it by number
reachable over
udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
Common Vulnerabilities:
- Unauthorized access due to weak authentication or default credentials.
- Exposure of sensitive configuration data if the port is accessible via untrusted networks.
- Potential exploitation of firmware vulnerabilities during remote administration.
- Amplification in reflection attacks when improperly secured.
Mitigations:
- Restrict port accessibility through firewall rules to trusted IP ranges.
- Employ strong, unique authentication credentials for access.
- Keep firmware updated to patch known vulnerabilities.
- Use VPN or secure administrative channels rather than exposing the port publicly.
- Monitor network activity for unusual access patterns indicative of reconnaissance or exploitation attempts.
Related Ports
the 8 most looked-up other ports in remote access — 110 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8000 | Intel Remote Desktop / Alternate HTTP Port | TCP | Web Services | safe | 84.3k |
| :8888 | D2GS Admin Console | TCP | Remote Access | caution | 83.7k |
| :8881 | Atlasz Secure Server | TCP | Web Services | caution | 67.6k |
| :5938 | TeamViewer | TCPUDP | Remote Access | caution | 65.0k |
| :8291 | Winbox MikroTik Admin | TCP | Security | caution | 62.9k |
| :8008 | IBM HTTP Server Admin | TCP | Web Services | caution | 58.3k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :23 | Telnet | TCP | Remote Access | caution | 34.8k |
risk mix of the 8 listed
- safe13%
- caution88%
0 of 8 encrypted