Router Vulnerability Leaves Many Unprotected
Yesterday the US Department of Homeland Security’s “Computer Emergency Readiness Team” issued a statement stating that a feature available on almost every router had been discovered to have a security vulnerability. But don’t worry just yet. While the vulnerability is widespread, it is not particularly serious, and this particular feature has been known to be problematic for a while.
In order to turn it off, the easiest way is to consult your router’s manual. If you don’t have this, log into your router’s admin page first. To find out where this is, hold the Windows key between the Alt and Ctrl keys, then tap the r key. Type “cmd” and hit enter. Type “ipconfig” and hit enter. After the text “Default Gateway” there will be a string of numbers and periods. Type these into your browser’s address bar and hit enter. Use the username and password provided by your internet service provider to login. Every router is different, but when you find a toggle for “UPnP” or “Universal Plug & Play,” turn it off.
So what does this service actually do? Does disabling it hurt anything? The answer is almost assuredly no. UPnP is actually concerned with controlling devices over the internet, so unless you regularly use your physical devices like printers or scanners from over the internet, there’s no way turning this off will hurt. In fact, it might already be disabled simply because it’s had problems in the past. Disabling UPnP can’t hurt anything.
Vulnerabilities like this have existed for a while, and many more certainly exist that people are not aware of. That’s one of the reasons why becoming aware of a virus does not necessarily mean that it has recently entered the world. Many people may have had viruses that entered through a vulnerability and even had computer repair to have them removed before the actual vulnerability is found. So don’t worry when you see alarmist warnings about new viruses – mostly they just want to catch your attention.
To make sure you stay protected from these threats in the future, just remember the basic rule of internet surfing (as well as real surfing) be careful! Most of these vulnerabilities will only cause problems if you let something in in the first place. Make sure to stay updated with your current virus protection software like Microsoft Security Essentials and to call computer repair before things escalate!