By Dan Goodin in San Francisco
21st July 2009
A hacker has discovered a critical vulnerability in open-source firmware
available for wireless routers made my Linksys and other manufacturers
that allows attackers to remotely penetrate the device and take full
control of it.
The remote root vulnerability affects the most recent version of DD-WRT,
a piece of firmware many router users install to give their device
capabilities not available by default. The bug allows unauthenticated
users to remotely gain root access simply by luring someone on the local
network to a malicious website.
"This means someone can even post some crafted [img] link on a forum and
a dd-wrt router owner visiting the forum will get owned," a user named
Leka Vecher "gat3way" wrote in this posting to Milw0rm. "A weird
vulnerability you're unlikely to see in 2009 :) Quite embarrassing I
Messages sent through the DD-WRT website to the software designers
weren't returned by time of publication, but comments posted to this
user forum thread said the vulnerability affected the most recent
builds, prompting a user by the name of autobot to declare the
vulnerability a "mini code red."
Attend Black Hat USA, July 25-30 in Las Vegas,
the world's premier technical event for ICT security experts.
Network with 4,000+ delegates from 50 nations.
Visit product displays by 30 top sponsors in
a relaxed setting. http://www.blackhat.com