The software requires an administrator to log in to add new User or admin accounts. The default username and password are admin and password respectively.
The Edimax BR-6428n is known to have default credentials (OSVDB 89876). The basic authentication banner gives up the default!
HTTP/1.1 401 Unauthorized
Date: Sat Jan 1 12:56:20 2000
WWW-Authenticate: Basic realm=”Default: admin/1234″
There are other models with the same default:
BR6228nS/BR6228nC Rev. A, Runtime Code Version 1.19
BR-6424N V2 Hardware Rev. A, Runtime Code Version 1.21
BR-6524N Hardware Rev. A, Runtime Code Version 1.58
BR-6574N Hardware Rev. A, Runtime Code Version 1.75
Another model that just identifies itself as “Wireless Router” too. You can find these via Shodan easily!
The Gestetner C7425DN and C7528N printers (and likely most of the models) have a default admin account for telnet access according to the manual:
Use the IP address or the host name of the printer to start telnet.
% telnet “IP_address”
Enter your user name and password.
To use default account, enter “admin” as user name, and leave the password blank.