Penetration Testing mailing list archives
Re: Wireless Pent-Test
From: Gregory Spath <gkspath () armstrong com>
Date: Mon, 6 Oct 2003 16:19:24 -0400
The real issue is in embedded devices. Laptops and such we can force to use IPSec. We do not have that luxury with embedded devices. The manufacturers seem to be blissfully ignorant of employing anything with reasonable security. I'm thinking specifically of barcode scanners for factory environments. They use a simple telnet connection, and now use 802.11 as the network medium. Yes, there are WinCE based solutions which can employ IPSec, but they are more fragile, and of course, more prone to software problems. Unacceptable in a warehousing environment. So you do the best you can with WEP and firewalls, but it is the vendors of these embedded devices that need to start employing better security. At least wireless credit card reader manufacturers now are starting to use SSL(a year ago, they were transmitting in the clear!) Why not use SSH instead of telnet, for example? With easily updated firmware for when vulnerabilities are discovered. Seems like an obvious solution that the industry just doesn't get. On Mon, 6 Oct 2003 14:35:00 -0400 (EDT) "R. DuFresne" <dufresne () sysinfo com> wrote:
there was a FD posting last week that indicated that cisco's LEAP was also insecure and borked. The thing is, a wireless lan should be considered untrustworthy, or at least untrusted, all traffic into the wired net has to be tunneled and safely wrapped in encryption, and there has to be a better auth mech to allow the tunnel access thn what is provided in simple AP/laptop setups. Network Mag had some interesting articles lately, one in July mentioneing some newer AP gateway systems coming into play, but, they are not cheap, and not for small to medium biz folks. Our impression, and mirroed by lawerence livermore, wireless is not ready for prime time play. Thanks, Ron DuFresne On Mon, 6 Oct 2003, Matthew Leeds wrote:OK, I keep hearing about how simple it is to crack WEP using a variety of tools. I also keep hearing that some WLAN hardware manfacturers have modified their firmware to eliminate the generation of 'weak' WEP keys. Has anyone investigated this sufficiently to authortatively discuss whether the 'removal' of weak keys reduces/eliminates the risk of WEP? Whether it renders the current generation of tools for cracking WEP ineffective? Some references: http://www.agere.com/NEWS/PRESS2001/111201b.html http://www.ydi.com/deployinfo/wp-wep-plus.php ---Matthew *********** REPLY SEPARATOR *********** On 10/6/2003 at 5:09 PM Daniel Nylander wrote:Getting the WEP-key from a WLAN is "pretty" simple. Download airsnort, wepcrack, kismet and other usefull tools.. then capture enough packets to wepcrack and .. voila! Daniel ----- Original Message ----- From: "Cesar Diaz" <cesadiz () yahoo com> To: <pen-test () securityfocus com> Sent: Sunday, October 05, 2003 3:16 AM Subject: Wireless Pent-TestRemote users in my company have been begging for permission to usewireless NICs in their laptops for awhile now. When they are not on the road, most of them work from home and would like to be able to use their laptops anywhere in their house.Due to our industry and business requierements, we have to documentevery process and method used to access our data and prove that we've tested the security of our data.In order to let the users go wireless I have to show that I've tested the security on a wireless network.Our idea is to let the users buy wireless routers to connect totheir cable/dsl routers and then wireless PCMCIA or USB cards on the laptop. We would implement 128 bit WEP security to prevent unauthorized access. I realize that WEP does not provide for stringent security, but we feel that by forcing users to change their WEP key regularly we can meet our requierements.My question is, how do I test WEP and document wether or not it'ssecure? Any way to sniff for WEP keys, or to brute force attack a WEP session? If there is, how hard is it to set up? How much of a risk of a wireless connection with WEP enabled to be comprimised other than a dedicated, brute force attack?Any information is greatly appreciated. Cesar-------------------------------------------------------------------- -------Tired of constantly searching the web for the latest exploits? Tired of using 300 different tools to do one job? Get CORE IMPACT and get some rest. www.coresecurity.com/promos/sf_ept2-------------------------------------------------------------------- ---------------------------------------------------------------------------- ------- Tired of constantly searching the web for the latest exploits? Tired of using 300 different tools to do one job? Get CORE IMPACT and get some rest. www.coresecurity.com/promos/sf_ept2 -------------------------------------------------------------------- ----------------------------------------------------------------------------- ------ Tired of constantly searching the web for the latest exploits? Tired of using 300 different tools to do one job? Get CORE IMPACT and get some rest. www.coresecurity.com/promos/sf_ept2 --------------------------------------------------------------------- --------- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ admin & senior security consultant: sysinfo.com http://sysinfo.com "Cutting the space budget really restores my faith in humanity. It eliminates dreams, goals, and ideals and lets us get straight to the business of hate, debauchery, and self-annihilation." -- Johnny Hart testing, only testing, and damn good at it too! ----------------------------------------------------------------------- ---- Tired of constantly searching the web for the latest exploits? Tired of using 300 different tools to do one job? Get CORE IMPACT and get some rest. www.coresecurity.com/promos/sf_ept2 ----------------------------------------------------------------------- -----
-- Gregory Spath Network Security Analyst Armstrong World Industries, Inc. gkspath () armstrong com 717-396-5938 --------------------------------------------------------------------------- Tired of constantly searching the web for the latest exploits? Tired of using 300 different tools to do one job? Get CORE IMPACT and get some rest. www.coresecurity.com/promos/sf_ept2 ----------------------------------------------------------------------------
Current thread:
- Wireless Pent-Test Cesar Diaz (Oct 06)
- Re: Wireless Pent-Test Daniel Nylander (Oct 06)
- Re: Wireless Pent-Test Matthew Leeds (Oct 06)
- Re: Wireless Pent-Test R. DuFresne (Oct 06)
- Re: Wireless Pent-Test Gregory Spath (Oct 06)
- Re: Wireless Pent-Test Seth Fogie (Oct 06)
- Re: Wireless Pent-Test Michael Sierchio (Oct 07)
- RE: Wireless Pent-Test Christopher Harrington (Oct 06)
- Re: Wireless Pent-Test Raistlin (Oct 07)
- Re: Wireless Pent-Test Cedric Blancher (Oct 08)
- Re: Wireless Pent-Test Raistlin (Oct 08)
- Re: Wireless Pent-Test Matthew Leeds (Oct 06)
- Re: Wireless Pent-Test Daniel Nylander (Oct 06)
- Re: Wireless Pent-Test n0g0013 (Oct 07)
- Re: Wireless Pent-Test goat (Oct 06)