Secure Wi-Fi? Not so Much -- Gaping Hole Found in WPS Pin System
December 29, 2011 12:42 PM
comment(s) - last by
The Department of Homeland Security suggests the only solution is to disable WPS
NETGEAR, Inc. (
), Cisco System, Inc.'s (
) Linksys, D-Link Corp (
), and Belkin, Inc. are some of the biggest makers of routers. If you own a router, there's a good chance you own a router from one of these manufacturers. And if you own a router from them, there's a good chance you used Wi-Fi Protected Setup (WPS) -- a PIN protected method -- to easily set up your home network. And that means that there's a good chance your security is now at serious risk.
WPS was dreamed up by
the Wi-Fi Alliance
as a means of easing the pain of home networking. But by including a flag in the EAP-NACK message, the standard unwittingly left a gaping hole that can be exploited by hackers to subvert your router.
The message tells the user if the first half of the pin they typed was right. Thus it drastically reduces the time needed to crack the PIN using a brute force attack. Add in that the last bit of the PIN is always its checksum, you have a recipe for a security disaster.
[Image Source: Best Wireless Internet Routers Blog]
The flaw reduces the time it takes to crack your average PIN from 10
attempts to 10
attempts (11,000 attempts total). Assuming you can fire off ten requests or more a second, you should be able to crack routers in minutes.
U.S. Department of Homeland Security
issued a warning
to the public
about the flaw. It
disabling WPS. This may be a painful option for less savvy operators, though, as setting up a network with more sophisticated protections can require a bit of learning.
the vulnerability and reported it to the DHS. He claims that none of the major manufacturers stepped up to the plate with a patch. He is going to release a C-coded exploitation tool shortly -- perhaps that will help prompt the business into action.
.BrainDump (Stefan Viehbock)
Department of Homeland Security
This article is over a month old, voting and posting comments is disabled
RE: Valid assumption?
12/29/2011 1:34:37 PM
A modern GPU can do 60k+ passwords per second. So it's a very valid assumption that your system could do 10. If anything it's rather low.
RE: Valid assumption?
12/29/2011 1:48:52 PM
The limiting factor is how many requests the router can answer not your pc
RE: Valid assumption?
12/29/2011 4:49:08 PM
Have you ever logged into a router before? You are not going to be able to do that 60,000 times a second. Those kind of speeds are generally only possible if you've got the entire password database stored locally on the machine doing the cracking - not applicable in this situation.
“So far we have not seen a single Android device that does not infringe on our patents." -- Microsoft General Counsel Brad Smith
Homeland Security Warns About Latest Dangerous Apple Browser Bug
May 10, 2010, 5:20 PM
WiGig Specifications Completed
December 10, 2009, 11:16 AM
Google Street View and reCAPTCHA Get Smarter with New Algorithm
April 17, 2014, 9:02 AM
Mt. Gox CEO Refuses to Come to the U.S. in Financial Crimes Probe
April 16, 2014, 3:50 PM
Mark Zuckerberg: Facebook Home Reception Slower than Expected, Social Graph Will Pick Up
April 16, 2014, 2:00 PM
FBI's Facial Recognition Database to Have 52 Million Criminal, Non-Criminal Photos by 2015
April 15, 2014, 2:56 PM
Microsoft's Anti-Google "Scroogled" Campaign May Have Ended
April 15, 2014, 2:44 PM
FAA Requiring All Flights to Have GPS Tracking System by 2020
April 15, 2014, 1:25 PM
Most Popular Articles
Cities to Carpoolers: Sharing Your Car is Illegal, We Will Seize Your Cars
April 4, 2014, 9:17 PM
Taiwan's AOU Claims to Have World's Highest-Res. OLED Smartphone Display
April 11, 2014, 1:44 PM
iPad Exploiter is Freed by Federal Appeals Court
April 11, 2014, 7:40 PM
It's Very Likely Neanderthals and Humans Had Sex, Produced Offspring
April 10, 2014, 8:40 PM
A-10 Warthog May Live to Fight Another Day with Support from Lawmakers
April 14, 2014, 9:41 AM
Latest Blog Posts
Facebook Aims to Provide Internet to "Every Person in the World" with Drones, Satellites
Apr 1, 2014, 10:20 AM
Retail Mobile Sites Experience Outages in Light of Simplexity's Bankruptcy
Mar 14, 2014, 8:48 AM
Tesla vs. BMW: Who Has the Safer EV?
Feb 1, 2014, 2:56 PM
Justice Leaks Details of Next HTC One Two Flagship Phone
Dec 5, 2013, 4:04 PM
Global Cyber Espionage Concerns Reveal Growing Cyber Armies
Nov 29, 2013, 11:04 AM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information