Arris password of the day generator

Do you need an Arris modem password? Are you stuck with your Arris modem, in a message that says “in order to access advanced features you must enter the password of the day”? Well then, you came to the right place!

This is a an Arris password of the day generator for various Arris cable modems.

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History

I created this many moons ago because the cable modem I had at the time died and my ISP brought me a new one: an Arris TM602A.

As usual when I get a new technological gadget, I had to explore it. The web interface, accessible via http://192.168.100.1, was quite simpler than my previous modem, the Scientific Atlanta Webstar 2203c but it also had a password protected page.

That obviously piqued my interest and I had to try to get in.

A bit of googling provided the answers I needed: apparently this device had a different password every day and I found a couple of pages with a list of passwords of the day, as well as a page with a password generator for the TM501A model which seemed to work fine for the TM602A.

That gave me access to the protected page but I didn’t want to be dependent on those two pages every time I wanted to access my modem’s protected page. Besides, I didn’t know how long the pages would last (they’re both forum posts). The password generator was no solution either, because it’s written for .NET, Mono isn’t able to execute it properly and I’m obviously not going to install Windows just because of this.

So I brought the matter into my own hands and wrote my own Arris password of the day generator.

Extra information

If you want to dig a little deeper into this subject, here are a few interesting things to check out:

• ARRIS Cable Modem has a Backdoor in the Backdoor
• Arris Cable Modem Backdoor - I’m a technician, trust me.
• HOPE Number Nine (2012): The ARRIStocrats: Cable Modem Lulz

Ports to other languages

• Marcel Valdez Orozco ported the generator to C# (usable in LINQPad) and posted the code in a gist.
• Daniel J. H. created a C++11 version for the command line.
• Daniel Sales created Perl and Java versions.
• There’s an old Android version created by Harry Gonzalez but it lacks the possibility to use a custom seed. Since then I have also realeased an up to date Android version, which is also open source.

Thanks guys! :)

If you ported Arrispwgen to another language, let me know and I’ll add it here.