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Hackers are very unlikely to break in to SOHO network from serial port, like in this post. This post is showing you that HG8245 can be exploited to get root access from the internet. The root password is permanently stored in the flash ROM and cannot be changed.
The setup was very easy. One computer was connected to HG8245 through a LAN cable. Then I ran telnet and use root:admin access. Voila, connection was established! The next commmand was easy, call the shell.
I have been working with TI CC2530 lately with Contiki OS. Since I don’t work on Windows environment, cc-tool is my tool to flash CC2530 binary. It should work for TI CC2430 as well, but for some reason it does not flash the chip properly. So, I remembered there was another open source tool I used to program CC2430 with. It was called cc_flasher. Unfortunately, the project seems to be abandoned by now. I just wanted to share what I did to make it build on OS X Yosemite in here.
Based on article posted by mlc: http://hints.macworld.com/article.php?story=20070218233806794
Many network devices are able to upload and download firmware and configurations via the TFTP protocol. Intel based Mac OS X comes with tftpd preinstalled. On OS X Server, tftpd service is running, but on standard OS X, it is disabled by default. However, it can be activated. In order to activate a service, you have to be administrator with sudo privilege.
I got an ONT router from China Telecom. It served well for SOHO internet connection back then in 2012. However, it has been collecting dust since I moved to a new place with no fiber optic internet. When things start to collect dust at one corner of my place, my curiosity quickly flies to pry it open and see if I could use it for something. At least I can see that it has one USB port on its side.
