[ale] Wireless access and WEP

Bob Toxen bob at verysecurelinux.com
Sun Feb 29 18:01:52 EST 2004

On Sun, Feb 29, 2004 at 01:32:19PM -0500, Trey Sizemore wrote:
> I understand that WEP is not the end all/be all when it comes to 
> securing a wireless internet connection, but wondered what I can do.  I 
> have a Netgear 802.11g wireless router to which I have my desktop 
> physically connected, but wanted to have a WAP for my Dell notebook with 
> Centrino.
Wired Equivalent Privacy (WEP) is a Trademarked name, not a true statement
as to its security level.  Even the lying sleazebags (in my opinion)
who own the trademark say on their web site that if you want good security
use a VPN on top of it, such as IPSec.

The U.S. Federal Gov't's NIPC notes:

     Successful exploitation of the vulnerability [in WEP] has been
     simplified to getting within range to intercept the broadcast.

(Real World Linux Securty, Second Edition p153-155.)

> What is the best way to set up the system to provide the best possible 
> security setup.  If anyone has Netgear, I'd like to know how you have 
> yours setup (WEP, limit by MAC address, etc.).
Limiting my MAC address also is almost worthless as WEP sends MAC addresses
in clear text.  Thus, an attacker can take over an existing system's
MAC address and simply crash the legitimate system to get it out of
the way -- if it is Windows.

> Thanks.

Best regards,

Bob Toxen, CTO
Fly-By-Day Consulting, Inc.
"Your expert in Firewalls, Virus and Spam Filters, VPNs,
Network Monitoring, and Network Security consulting"
bob at verysecurelinux.com (e-mail)

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