Thu Apr 10, 2008 4:54PM EDT
See Comments (4)
Hackers are finding all kinds of vulnerabilities in web browsers, and using
them to break into pretty much any system they want to. PCWorld
reports that Dan Kaminsky, Director of Penetration Testing at IOActive,
showed how a Web-based router attack could easily be carried at an RSA security
conference in San Francisco. According to the article, this type of attack would
work on pretty much any router out there, including those sold by Linksys and D-Link.
Most consumers forget to change the default password on their router, which basically makes them vulnerable to a DNS rebinding attack. This type of attack takes the victim to a malicious site that loads JavaScript code to the browser, and changes the settings on the router's Web-based configuration page. The script could also force the router to download firmware, which is another way intruders gain complete control, and access into anything in the network.
Kaminsky says the problem is not with the router itself, but with the browser. Users who don't change their router's passwords are taking their chances, so change make sure your password is not easy to crack to prevent this.
Our Yahoo! Tech experts have written about router security before, so check out these articles if you need some help.
Logging
into Your Access Point the First Time
Step By Step: How to Protect
Your Wi-Fi Network
How
to Reset a Wireless Router
Wi-Fi Security Made Easy
Join in the discussion. Here you'll see the comments in the order they were posted.
What they are saying is when you don't change your router default password you are leaving yourself open tot DNS rebinding which will cause you to go to another site which has the malicious code. For example if you regularly go to yourdomain.com (IP address is 123.423.123.5) and your DNS has been rebound instead of going to the correct 123.423.123.5 server which houses the website you will directed to another server (i.e. 32.43.12.123) that will have the site that contain the malicious code. In setting up a router you can set the DNS server that will you, when you do not change the password, someone can set the DNS server that your router will access to one that is not valid which in turn will cause false host name resolution causing the incorrect page to load.
Snake read my post again- its silly not to change the default password on your router.
I read your post and you said "How is this a problem with the browser? Do you suggest disabling javascript? What kind of an idiotic idea is that?" I'm referring to the browser aspect and how those that don't change their routers default password, leave their browser open. you didn't read what i was saying I was talking about how DNS rebinding will affect your browser. I know you should always change your default routers default, I've setup my far share of routers.
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1 Posted by kupriaa1 on Thu Apr 10, 2008 5:22PM EDT Report Abuse
How is this a problem with the browser? Do you suggest disabling javascript? What kind of an idiotic idea is that? Most websites require javascript-if we didnt enable javascript, activeX, and java most of the website we love for their content wouldnt work any more. This is just silly. And a silly story to begin with. People should always change the password on their router immediately. People who dont are silly. Also they shouldnt visit websites that would have this type of javascript code. Silly silly silly people