Rescuing your DSL password from a Beetel 220BX ADSL2+ Modem

Posted by n00dl3s • Saturday, October 24. 2009 • Category: InSecurity In case it helps anybody...

If you don't know the DSL password which connects your Beetel 220BX to the ISP network (Airtel in India does never provide it to the customers, they'd rather send a guy to enter it by hand...), but the router still functions, you can get the passwords even though you only see ******** in the web-interface. It's really easy:

1. Connect to the router IP with telnet (user: admin, password is the same as for the web-interface)
2. Go to Management (press 9)
3. Go to Settings (press 1)
3. Dump settings (press 3)
4. Look for the line that starts with: ppp_conId1 userName="***********_dsl@airtelbroadband.in" password="cGFzc3dvcmQ=" ....
5. Copy and paste the value of password into a base64 decoder (locally or i.e. you can use an online decoder, such as here: http://www.opinionatedgeek.com/dotnet/tools/Base64Decode/)
6. Congrats, you now have your DSL password which Airtel wouldn't tell you ;)

Thanks to :

http://united-geeks.org/blog/archives/99-Rescuing-your-DSL-password-from-a-Beetel-220BX-ADSL2+-Modem.html