Penetration Testing mailing list archives
RE: Emulating a wireless access point
From: "Meredith S" <merediths () pwaor com>
Date: Tue, 14 Aug 2001 15:46:38 -0700
Actually, it probably has to do w/ the frequency / harmonic resonance of the phone interfearing w/the AP ... not the proximity. Even if the phone operates on a different frequency, it can interfere w/ the AP via harmonic resonance. Harmonic Resonance occurs when one of the frequencies is a multiple of the other. Say your AP operates at 2 hz ( for simplicity sake) and your phone operates at 4 hz, then every other cycle of the phones frequency will be in phase w/ the access points. ASCII Diagra: | x -- sine peak As you can see, the sine waves are prefectly | | | | | Phone in-phase at 2 and 4 w/ respect to the phone. | | | | | | | | | | | | | | |_________________________________ T = 1 sec | | x -- sine peak | | | | ....| |.....| |. Access Point | | | | | __________________________________ T = 1 sec Are there any Ham operators out there that can confirm or deny this? -- Meredith Shaebanyan -----Original Message----- From: Jason Brvenik [mailto:jason () brvenik com] Sent: Tuesday, August 14, 2001 6:51 AM To: pen-test () securityfocus com Subject: RE: Emulating a wireless access point FWIW, This would seem very possible. I have a Cisco 340 AP at home I use for freedom around the house (over a VPN of course). I also have one of those cool multi-point 2.4gig cordless phones with 3 handsets. So you are asking what does this have to do with anything? Well, let me tell you. Every time I pick up the phone it blows out the association with the AP. I haven't had time to look into it any further but I am guesstimating that it is related to the proximity of the phone to the 340 cards I use. I've been intending to get the newer higher power 350 AP and cards to see what that does but with so many other fun things to spend money on I haven't gotten around to it. Jason -----Original Message----- From: Steve Skoronski [mailto:skoronski () ctidata com] Sent: Monday, August 13, 2001 4:08 PM To: pen-test () securityfocus com Subject: Emulating a wireless access point greetings, I have heard about wireless LAN attacks that involve 'overpowering' or competing with the real Access Point with your own. The idea is that the clients will automatically switch to your, higher powered AP, authenticate, and then you can sniff the authentication sequence. Has anyone seen software to emulate this on a PC/Laptop with a wi-fi card? Or should I go look for a used AP? TIA ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/ ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
Current thread:
- Emulating a wireless access point Steve Skoronski (Aug 13)
- Re: Emulating a wireless access point Robert van der Meulen (Aug 13)
- Re: Emulating a wireless access point Thorsten Fischer (Aug 14)
- RE: Emulating a wireless access point Jason Lewis (Aug 14)
- <Possible follow-ups>
- RE: Emulating a wireless access point Jason Brvenik (Aug 14)
- RE: Emulating a wireless access point Meredith S (Aug 15)
- Re: Emulating a wireless access point Al Potter (Aug 15)
- RE: Emulating a wireless access point Meredith S (Aug 15)
- Re: Emulating a wireless access point Michael Boman (Aug 16)
- RE: Emulating a wireless access point Meredith S (Aug 15)
- Re: Emulating a wireless access point Robert van der Meulen (Aug 13)
- RE: Emulating a wireless access point Nicholas de Jong (Aug 14)
- RE: Emulating a wireless access point Jason Lewis (Aug 15)
- RE: Emulating a wireless access point Artes, Francisco (Aug 15)
- RE: Emulating a wireless access point bparis (Aug 15)
- Re: Emulating a wireless access point David Ford (Aug 15)
- Re: Emulating a wireless access point Marc Mosko (Aug 16)