T-Online and the unusual way to get security
8(!) month ago a vulnerability was discovered in the ADSL-WiFi-Router “Speedport W700V” manufactured by Siemens, allowing remote users to access the web interface of the router remotely. Funnily enough the router shows the default password at the login screen. The router is given away for free with a contract with the German Internet Provider T-Online (German Telekom). A firmware update already exists fixing the hole. Some days ago, users of T-Online discovered that they couldn’t make connections on TCP-port 8085 anymore.
Here is the clue: T-Online admitted that they are blocking port 8085 for outgoing connections by now, but affecting only T-Online users. 