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Cornerstone Issue 70: February 13, 2006
Welcome to Issue 70 of Cornerstone, a subscription-only electronic
newsletter issued periodically by Core Competence.
Cornerstone reports on a wide range of networking topics and
activities involving Core Competence. A brief abstract explains
what you will find if you choose to visit each URL.
http://www.corecom.com/external/bcrmag/bcrmag.html#nov05
To better understand what it takes to deploy VoIP over WiFi, Lisa Phifer
interviewed six companies that have already ventured down this path.
From healthcare to hospitality, walled office to warehouse, these
vanguards have given VoWiFi a try, with varied goals and results.
These are their stories.
http://searchsecurity.com/generic/0,295582,sid14_gci1162378_tax299833,00.html
Like all new technologies, VoIP implementations require careful design,
testing and analysis to identify and eliminate security vulnerabilities.
In this article, Lisa Phifer describes the two main protocols that power
VoIP (SIP and H.323), a few known vulnerabilities, and how functional
protocol testing ("fuzzing") can help defeat such problems.
http://www.corecom.com/external/mobloop/Loop-122305.htm
Have you been itching to bring your Vonage phone on the road? Lisa
Phifer ponders Vonage "mobility" options, including VoWiFi, in this
holiday season Mobility Loop post.
http://www.corecom.com/external/mobloop/Loop-011806.htm
This VoWiFi handset may be tiny and portable, but don't expect it
to replace your cellphone. Read about what worked and what didn't
when Lisa Phifer took UTStarcom's F1000 Wi-Fi phone for a test drive.
http://www.corecom.com/external/mobloop/Loop-012406.htm
In this MobilityLoop blog post, Lisa Phifer discusses NMRC's
security advisory, "Windows Silent Ad hoc Network Advertisement"
and measures to deter ad hoc AND infrastructure mode SSID spoofing.
http://searchmobilecomputing.com/tip/1,289483,sid40_gci1160151,00.html
If you're cycling out older laptops or deploying a whole new fleet,
read this feature column, where Lisa Phifer explores embedded wireless
interfaces and factors to consider when purchasing your next laptop.
http://searchmobilecomputing.com/tip/1,289483,sid40_gci1152171,00.html
802.11 challenges have changed, from satisfying basic necessities like
security and coverage, to addressing broader deployment issues like
management and quality. In this year-end Wireless Advisor column,
Lisa Phifer takes a look back at 2004-2005 WLAN evolution.
http://www.isp-planet.com/technology/2005/secure_windows_1a.html
While many businesses depend on the Microsoft Windows Internet
Explorer, Outlook, and the XP SP2 Firewall, vulnerabilities have
generated growing interest in alternative clients that are leaner,
cleaner, and faster. In this series, Lisa Phifer examines several
freely available Win32 web browsers, e-mail clients, and firewalls.
http://www.corecom.com/external/livesecurity/protectdos.htm
Many SMBs overlook the additional layer of security they can achieve
by configuring the Windows OS to detect and protect its TCP/IP "stack"
against DoS attacks. Dave Piscitello navigates the associated Windows
registry keys in this LiveSecurity column.
http://searchsecurity.com/tip/1,289483,sid14_gci1148951,00.html
Given limited range and application, Bluetooth is often incorrectly
discounted as a business threat. But new Bluetooth devices can reach
up to 100 meters, most are promiscuous by default, and many harbor
flaws associated with the Bluetooth OBEX protocol. Learn more about
Bluetooth attacks and security measures in Lisa Phifer's column.
http://www.corecom.com/external/livesecurity/dnsphishing.htm
In this article, Dave Piscitello discusses DNS cache poisoning, a
class of attacks where a name server is tricked into adding or
modifying cached DNS data with incorrect and malicious data. There
are several forms of DNS (cache) poisoning; here, Dave examines
pharming, an attack associated with recent phishing incidents.
http://www.corecom.com/external/livesecurity/eviltwin1.htm
"Evil Twin" is one of several catchy labels referring to attacks
in which unsuspecting Wi-Fi users are tricked into associating with
a phony wireless Access Point (AP). In this two-part column, Lisa
Phifer disassembles this attack to see where vulnerabilities are
exploited and mistakes are made during an Evil Twin attack, then
recommends steps that can help you avoid becoming a victim.
http://www.corecom.com/external/livesecurity/logclues.htm
But perhaps the most powerful use of logging is user activity
monitoring. In this LiveSecurity article, Dave Piscitello outlines
how to implement user-level monitoring using a WatchGuard Firebox.
http://www.corecom.com/external/mobloop/Loop-113005.htm
Telemarketers may not be texting your mobile phone anytime soon,
but SMS/MMS spam is still a concern. Lisa Phifer discusses
wireless spam and simple countermeasures to reduce your exposure.
http://searchmobilecomputing.com/originalContent/0,289142,sid40_gci1149776,00.html
TechTarget's Andrew Hickey interviews CoreCom's Lisa Phifer about the
Wireless Vulnerabilities and Exposures Database, sponsored by CWNP,
The Center for Advanced Defense Studies, and Network Chemistry.
http://hhi.corecom.com/arc20051101.htm#BlogID477
DNSsec is the latest Internet protocol to encounter resistance to early
adoption and deployment. Like WLAN security, remote access VPNs, secure
email, multi-factor authentication and, well, *every* security measure
introduced in recent memory, reaction from network operators and
administrators always begins with the same five sentence mantra...
http://hhi.corecom.com/arc20051201.htm#BlogID485
In this post, Dave gives a thumbs up to Dan DiNicolo's "step-by-step
methods for evicting invaders and keeping them out", published by
PC Magazine.
http://hhi.corecom.com/arc20051201.htm#BlogID482
Here, Dave discusses some of the challenges that members of the Internet
community face as they struggle to accommodate national and local
character sets in the Domain Name System.
http://hhi.corecom.com/arc20051201.htm#BlogID481
Nearly a decade after the disclosure of the exploit code for the original
LAND attack, two remote variants of the attack have resurfaced. In this
post, Dave explains why he finds these attacks so interesting, and what
they reveal about the way security is evolving (or devolving).
http://hhi.corecom.com/arc20051201.htm#BlogID478
Dave uses J.K. Rowling's endearing character as a literary device to
make a point about the way authentication is practiced today.
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