Grandstream Networks WP810 Bedienungsanleitung
Grandstream Networks, Inc.
WP810
Cordless Wi-Fi IP Phone
Security Guide
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WP810 Security Guide
Table of Contents
OVERVIEW.....................................................................................................................3
WEB UI/SSH ACCESS ...................................................................................................4
Web UI Access .....................................................................................................................................4
Web UI Access Protocols .....................................................................................................................4
Admin Login..........................................................................................................................................5
User Management Levels ....................................................................................................................6
SECURITY FOR SIP ACCOUNTS AND CALLS ............................................................8
Protocols and Ports ..............................................................................................................................8
Anonymous/Unsolicited Calls Protection .............................................................................................9
SRTP .................................................................................................................................................. 11
SECURITY FOR WP810 SERVICES............................................................................12
Firmware Upgrade and Provisioning ..................................................................................................12
TR-069................................................................................................................................................13
Syslog.................................................................................................................................................15
SECURITY GUIDELINES FOR WP810 DEPLOYMENT .............................................. 16
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WP810 Security Guide
Table of Figures
Figure 1 : Web UI Access Settings................................................................................................................4
Figure 2 : Web UI Login ................................................................................................................................5
Figure 3 : Change Password on First Boot ...................................................................................................5
Figure 4: Change Admin Level Password.....................................................................................................6
Figure 5 : Change User Level password.......................................................................................................7
Figure 6 : Configure TLS as SIP Transport ...................................................................................................8
Figure 7 : SIP TLS Settings...........................................................................................................................8
Figure 8 : Additional SIP TLS Settings ..........................................................................................................9
Figure 9 : Anonymous Call Rejection............................................................................................................9
Figure 10 : Settings to Block Anonymous Call ............................................................................................10
Figure 11 : SRTP Settings...........................................................................................................................11
Figure 12 : Upgrade and Provisioning ........................................................................................................12
Figure 13 : TR-069 Connection Settings.....................................................................................................14
Figure 14 : Syslog Protocol .........................................................................................................................15
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WP810 Security Guide
OVERVIEW
This document presents a summary of security measures, factors, and configurations that users are
recommended to consider when configuring and deploying our WP810 Cordless Wi-Fi IP Phone.
Note: We recommend using the latest firmware for latest security patches.
The following sections are covered in this document:
•Web UI/SSH Access
Web UI access is protected by username/password and login timeout. Two-level user management is
configurable. SSH access is supported for mainly troubleshooting purpose and it is recommended to disable
it in normal usage.
•Security for SIP Accounts and Calls
The SIP accounts use specific port for signaling and media stream transmission. It also offers configurable
options to block anonymous calls and unsolicited calls.
•Security for WP810 Services
WP810 supports service such as HTTP/HTTPS/TFTP/FTP/FTPS and TR-069 for provisioning. For better
security, we recommend using HTTPS/FTPS with username/password and using password-protected XML
file. We recommend disabling TR-069 if not used to avoid potential port exposure.
•Deployment Guidelines for WP810
This section introduces protocols and ports used on the WP810 and recommendations for routers/firewall
settings.
This document is subject to change without notice.
Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for
any purpose without the express written permission of Grandstream Networks, Inc. is not permitted.
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WP810 Security Guide
WEB UI/SSH ACCESS
Web UI Access
The WP810 embedded web server responds to HTTP/HTTPS GET/POST requests. Embedded HTML
pages allow users to configure the device through a web browser such as Microsoft IE, Mozilla Firefox,
Google Chrome and etc. With this, administrators can access and configure all available WP810 information
and settings. It is critical to understand the security risks involved when placing the Cordless Wi-Fi IP
Phones on public networks and it’s recommended not to do so.
Web UI Access Protocols
HTTP and HTTPS are supported to access the WP810’s web UI and can be configured under web UI →
Maintenance → Security settings → Security.
To secure transactions and prevent unauthorized access, it is highly recommended to:
1. Use HTTPS instead of HTTP.
2. Avoid using well known port numbers such as 80 and 443.
Figure 1 : Web UI Access Settings
3. The WP810 allows access via SSH for advanced troubleshooting purpose. This is usually not
needed unless the administrator or Grandstream support needs it for troubleshooting purpose. SSH
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WP810 Security Guide
access on the device is enabled by default with port 22 used. It’s recommended to disable it for
daily normal usage. If SSH access needs to be enabled, changing the port to a different port other
than the well-known port 22 is a good practice.
Admin Login
Username and password are required to log in the WP810’s web UI.
Figure 2 : Web UI Login
The factory default administrator username is “admin”, and the random password can be found on the
sticker at the back of the unit. Changing the default password at first time login is highly recommended.
When accessing the WP810 phones for the first time or after factory reset, users will be asked to change
the default administrator password before accessing WP810 Web interface.
To change the password for default user "admin", navigate to Web GUI → Maintenance →Web Access
Figure 3 : Change Password on First Boot
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WP810 Security Guide
Figure 4: Change Admin Level Password
The password length must be between 6 and 25 characters. Strong password with a combination of
numbers, uppercase letters, lowercase letters, and special characters is always recommended for security
purpose.
User Management Levels
Two user privilege levels are currently supported:
•Admin
•User
User Level
Username
Password
Web Pages Allowed
User Level
user
123
Only Status and Basic
Settings
Administrator Level
admin
Random password available
on the sticker at the back of
the unit.
All pages
NOTES:
➢It is recommended to keep admin login for administrator only. And user should be provided with
user level login only, if web UI access is needed.
➢Change User Level Password upon the first login by following the below steps:
1. Access your WP810 web UI by entering its IP address in your favorite browser.
2. Enter your admin password.
3. Go to Maintenance → Web Access → User Password and Enter the new password.
4. Confirm the new password.
5. Press “Save” at the bottom of the page to save your new settings.
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WP810 Security Guide
Figure 5 : Change User Level password
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WP810 Security Guide
SECURITY FOR SIP ACCOUNTS AND CALLS
Protocols and Ports
By default, after a factory reset, all the accounts are not active. And it is recommended to disable the unused
ports. Under Web GUI → Accounts → Account X → General Settings → Account Active: “No”
➢Users can also disable Direct IP calls on all ports under Settings → Call Features: Set “Disable
Direct IP Call:” to “Yes”
•SIP transport protocol:
The WP810 supports SIP transport protocol “UDP” “TCP” and “TLS”. By default, it’s set to “UDP”. It’s
recommended to use “TLS” so the SIP signaling is encrypted. SIP transport protocol can be configured
per Account under web UI → Accounts → Account X → SIP Settings → Basic Settings. When “TLS”
is used, we recommend using “sips” instead of “sip” for SIP URI scheme to ensure the entire SIP
transaction is secured instead of “best-effort”.
Figure 6 : Configure TLS as SIP Transport
SIP TLS certificate, private key and password can be configured under Maintenance → Security Settings
→ Security page:
Figure 7 : SIP TLS Settings
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WP810 Security Guide
When SIP TLS is used, the WP810 also offers additional configurations:
- Validate Server Certificates:
This feature allows users to validate server certificates with our trusted list of TLS connections
- Trusted CA Certificates: Uses the certificate for Authentication under Maintenance → Security
Settings → Trusted CA Certificates
Figure 8 : Additional SIP TLS Settings
•Local SIP port when using UDP/TCP:
Starting from 5060 for Account 1, the port numbers increase by 2 for each account. For example, 5062
is the default local SIP port for Account 2.
•Local SIP port when using TLS:
The SIP TLS port is the UDP SIP port plus 1. For example, if Account 1 SIP port is 5060, its TLS port
would be 5061.
Anonymous/Unsolicited Calls Protection
If the user would like to have anonymous calls blocked, please go to WP810’s Web GUI → Account X →
Call Settings and set “Anonymous Call Rejection “to “Yes”: The WP810 will then reject all incoming
calls with anonymous caller ID by sending a “486 Busy here” message.
Figure 9 : Anonymous Call Rejection
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