Protect your corporate IT network from hackers and other unwanted intruders with Proxy Sentinel™. Click here for all the details and get the peace of mind you deserve.
Back to our Homepage Proxy Sentinel™ high performance Internet proxy server and secure firewall solution Firewall Sentinel™ secure & powerful Internet firewall solution About Internet and GCIS Frequently Asked Questions on Internet security issues Internet Security Industry News - Stay informed of what's happening Contact Internet today and order your Proxy Sentinel™ or Firewall Sentinel™ server now!

Critical security vulnerability in the 802.11 wireless protocol

Save your company's valuable data with Proxy Sentinel™ from Internet Security. Click here for all the details.

May 14, 2004

A vulnerability in the most common wireless networking protocol, the 802.11 standard established by the Institute of Electrical and Electronic Engineers (IEEE), allows a device to essentially jam other devices on a network using a low-power signal. The Australian Computer Emergency Response Team issued an advisory warning companies that their wireless networks could be attacked by a hacker.

"Previously, attacks against the availability of IEEE 802.11 networks have required specialized hardware and relied on the ability to saturate the wireless frequency with high-power radiation, an avenue not open to discreet attack," AusCERT said in its advisory. "This vulnerability makes a successful, low-cost attack against a wireless network feasible for a semiskilled attacker."

The flaw affects the clear channel assessment (CCA) procedure, which attempts to minimize the probability that two devices will broadcast on the same frequency. The attack can cause all devices in range to wait to transmit until the attack has halted.

The attack is considered a denial-of-service tactic and, as such, is not rated a critical problem. However, AusCERT warns that emergency response networks should move to wireless technologies that are not vulnerable to jamming.

Vulnerable devices include any that support the 802.11, 802.11b and low-speed 802.11g wireless standards. Devices that use 802.11a or high-speed 802.11g, above 20mbps, are not vulnerable, the organization said.

Source: C-Net News

Save Internet's URL to the list of your favorite web sites in your Web browser by clicking here.

Become an authorized reseller of Proxy Sentinel™ and Firewall Sentinel™. Do like the rest of our authorized resellers and have your clients benefit the important security features of our products and solutions, while increasing your sales at the same time. Click here for all the details.

You can link to the Internet Security web site as much as you like. Read our section on how your company can participate in our reciprocal link exchange program and increase your rankings in the major search engines such as
Google and all the others.

Click here to order your Proxy Sentinel™ Internet security server today!

Proxy Sentinel™ is the most secure Internet proxy server on the market today. Click here for more information.
Site optimized by Pagina+™
Powered by Sun Hosting
Search engine keywords by Rank for Sales
Development platform by My Web Services
Internet is listed in
Global Business Listing

| Home | Proxy Sentinel™ | Firewall Sentinel™ | FAQ | News | Sitemap | Contact |
Copyright © Internet 2003    Terms of use    Privacy agreement    Legal disclaimer