AOH :: ISN-3095.HTM

OpenWRT Firmware for Wireless APs




OpenWRT Firmware for Wireless APs
OpenWRT Firmware for Wireless APs



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=== CONTENTS ==================================================
IN FOCUS: OpenWRT Firmware for Wireless APs

NEWS AND FEATURES
   - Microsoft Releases Patch for Critical IE Vulnerability
   - Symantec Reports on Current Threat Trends
   - Windows Vista's Take on Least Privilege
   - Recent Security Vulnerabilities

GIVE AND TAKE
   - Security Matters Blog: Firefox 2.0 RC1 Available
   - FAQ: Controlling Group Policy Editor
   - From the Forum: EFS and WebDAV over SSL
   - Microsoft Learning Paths for Security: Multiple-Layer Defense for 
Secure Messaging
   - Know Your IT Security Contest

PRODUCTS
   - Encrypt Data in Flight and at Rest
   - Wanted: Your Reviews of Products 

RESOURCES AND EVENTS

FEATURED WHITE PAPER

ANNOUNCEMENTS


=== SPONSOR: Core Security ====================================
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=== IN FOCUS: OpenWRT Firmware for Wireless APs ===============   by Mark Joseph Edwards, News Editor, mark at ntsecurity / net

Before I return to our discussion of alternative firmware, I want to 
let you know about another portable Web browser. Last week, I wrote 
about Mozilla Firefox - Portable Edition and Torpark (see the article 
at the URL below). As I described, both these browsers can help protect 
your sensitive data by keeping it on portable media, such as a flash 
drive. A reader wrote to let me know about another portable browser 
that I didn't know existed: Opera@USB. 
http://list.windowsitpro.com/t?ctl=3AE78:7EB890 

As the name implies, Opera@USB is based on the popular Opera Web 
browser and is designed to be portable. Like Firefox Portable and 
Torpark, Opera@USB helps protect your privacy by not leaving traces of 
its existence or activity on the computer you use it on. Opera@USB is 
smaller than the other two browsers, weighing in at under 8MB. The 
current version is based on Opera 9 and installation is very simple: 
Just unzip the download package to a directory and fire up the browser. 
You can download a copy at http://list.windowsitpro.com/t?ctl=3AE8D:7EB890 

Two weeks ago, I wrote about DD-WRT (see the article at the URL below), 
alternative firmware for wireless access points (APs). One thing about 
DD-WRT that I didn't mention is that it's based on the code of another 
alternative firmware product, OpenWRT, which is our main topic of 
discussion this time. 
http://list.windowsitpro.com/t?ctl=3AE77:7EB890 

The popular wireless router manufacturer Linksys developed a small 
Linux-based open source OS to drive its AP hardware. People took copies 
of this code and began tweaking it to fit their own needs. This trend 
gave rise to an alternative firmware product called Alchemy, which was 
also eventually published as open source. Alchemy led to a spinoff 
called OpenWRT, which in turn led to another spinoff called DD-WRT. 

Unlike DD-WRT, OpenWRT is completely command line based. The standard 
distribution package doesn't include a GUI. This fact has its pluses 
and minuses. On the minus side, using a GUI is easier than remembering 
all sorts of commands and their associated parameters. On the plus 
side, not having a GUI makes the code base smaller, which can be a big 
deal when a given router has only so much storage and memory capacity. 
If your router has limited space or you prefer using a Linux command 
line, OpenWRT (downloadable at the URL below) is a good choice. 
http://list.windowsitpro.com/t?ctl=3AE90:7EB890 

Like DD-WRT, OpenWRT supports quite a number of routers. You can check 
whether your particular model is supported by reviewing the hardware 
table, which includes some hardware that's been tested and found to not 
work with OpenWRT. 
http://list.windowsitpro.com/t?ctl=3AE8F:7EB890 

OpenWRT supports many security features that you might find useful, 
including a firewall based on ipchains, Wi-Fi Protected Access (WPA) 
encryption, Remote Authentication Dial-In User Service (RADIUS) 
authentication, and Dropbear Secure Shell (SSH) server. Add-on 
packages, such as OpenVPN (at the first URL below), are also available. 
If you need help configuring OpenVPN, visit the second and third URLs 
below. 
http://list.windowsitpro.com/t?ctl=3AE8B:7EB890 
http://list.windowsitpro.com/t?ctl=3AE7B:7EB890 
http://list.windowsitpro.com/t?ctl=3AE83:7EB890 

Other useful add-on packages are listed at the URL below and include a 
mini Asterisk VoIP server, The Onion Router (TOR) server, a PPTP 
server, the Chillispot hotspot creation package, and handy shell tools 
such as Fyodor's Nmap and Dug Song's dsniff auditing and penetration 
testing suite. 
http://list.windowsitpro.com/t?ctl=3AE81:7EB890 

As with any alternative firmware, be sure that it will work on your 
hardware and that you're relatively comfortable that you can configure 
it to your needs before you try to load it. Be sure to read the 
extensive OpenWRT documentation, and if you have questions, use the 
forum at the OpenWRT Web site.


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to effectively establish and enforce security policies for all 
applications and devices in use on your network. 
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=== SECURITY NEWS AND FEATURES ================================
Microsoft Releases Patch for Critical IE Vulnerability
   Microsoft released a security patch outside of its scheduled monthly 
patch release cycle to address a critical vulnerability in Internet 
Explorer (IE). Microsoft Security Bulletin MS06-055--Vulnerability in 
Vector Markup Language Could Allow Remote Code Execution (925486) 
should be applied to all Windows 2000, Windows XP, and Windows Server 
2003 systems, including Windows Server 2003 Release 2 (R2). 
http://list.windowsitpro.com/t?ctl=3AE7F:7EB890 

Symantec Reports on Current Threat Trends
   Symantec said that according to data collected from its deployed 
products, attackers are shifting their attacks from network 
infrastructures and system services toward end users. The findings, 
from January through June, were revealed in the company's recent semi-
annual Internet Security Threat Report.
http://list.windowsitpro.com/t?ctl=3AE7C:7EB890 

Windows Vista's Take on Least Privilege
   One of the most fundamental security changes in the oft-delayed 
Windows Vista will be the OS's new least-privilege support, embodied in 
the User Account Control (UAC) feature (formerly called the Least-
Privileged User Account). Jan De Clercq provides an overview of this 
new security technology. 
http://list.windowsitpro.com/t?ctl=3AE80:7EB890 

Recent Security Vulnerabilities
   If you subscribe to this newsletter, you also receive Security 
Alerts, which inform you about recently discovered security 
vulnerabilities. You can also find information about these 
discoveries at
http://list.windowsitpro.com/t?ctl=3AE76:7EB890 


=== SPONSOR: Surf Control =====================================
Ten Steps to Achieving Business Compliance
   Learn the 10 steps you need to take to achieve corporate compliance, 
including operational visibility in all communication data. As an extra 
step, stop network assaults so that you can use the Internet 
confidently, both on and off your corporate network.
http://list.windowsitpro.com/t?ctl=3AE72:7EB890 


=== GIVE AND TAKE =============================================
SECURITY MATTERS BLOG: Firefox 2.0 RC1 Available
by Mark Joseph Edwards, http://list.windowsitpro.com/t?ctl=3AE86:7EB890 

On September 27, Mozilla Foundation announced the availability of 
Firefox 2.0 Release Candidate 1 (RC1). The new version includes many 
feature enhancements, a number of which are related to security. Get a 
quick rundown of the new features and a link to download Firefox 2.0 
RC1 in this blog article. 
http://list.windowsitpro.com/t?ctl=3AE7E:7EB890 

FAQ: Controlling Group Policy Editor
by John Savill, http://list.windowsitpro.com/t?ctl=3AE85:7EB890 

Q: How can I control which .adm files are used when I edit a Group 
Policy Object (GPO)?

Find the answer at
http://list.windowsitpro.com/t?ctl=3AE7D:7EB890 

FROM THE FORUM: EFS and WebDAV over SSL
   A forum participant is having a problem with Encrypting File System 
(EFS) and Web Distributed Authoring and Versioning (WebDAV). When he 
uses a Secure Sockets Layer (SSL) connection (via HTTP Secure--HTTPS) 
to send a file from a client to the WebDAV folder on a server, the 
client decrypts the file and stores the file in unencrypted format on 
the server without warning. Join the discussion at:
http://list.windowsitpro.com/t?ctl=3AE6E:7EB890 

MICROSOFT LEARNING PATHS FOR SECURITY: Multiple-Layer Defense for 
Secure Messaging 
   Multiple layers of defense help protect your business by decreasing 
the likelihood that any single threat can compromise your network. Use 
these resources to learn about a broad range of Microsoft security 
solutions that can help protect your messaging environment: guarding 
the perimeter with Microsoft Exchange Hosted Services, adding a buffer 
and firewall protection with Microsoft ISA Server 2006, helping to 
protect internal messages with Microsoft Antigen, and using Windows 
Rights Management Services (RMS) to help safeguard sensitive emails and 
documents. 
http://list.windowsitpro.com/t?ctl=3AE73:7EB890 

KNOW YOUR IT SECURITY Contest
   Sponsored by Microsoft Learning Paths for Security 
Share your security-related tips, comments, or solutions in 1000 words 
or less, and you could be one of 13 lucky winners of a Zune media 
player. Tell us how you do patch management, share a security script, 
write about a security article you've read or a Web cast you've viewed. 
Submit your entry between now and December 13. We'll select the 13 best 
entries, and the winners will receive a Zune media player--plus, we'll 
publish the winning entries in the Windows IT Security newsletter. 
Email your contributions to tipswinitsec@windowsitpro.com. 
   Prizes are courtesy of Microsoft Learning Paths for Security: 
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=== PRODUCTS ================================================== by Renee Munshi, products@windowsitpro.com 

Encrypt Data in Flight and at Rest
   BitArmor Systems announced the availability of BitArmor Security 
Suite, software that encrypts data both while in flight and at rest 
whether on workstations or servers, portable media, or storage systems. 
BitArmor lets you set policies for data encryption, retention, and 
deletion and provides an architecture for managing encryption keys. 
BitArmor Security Suite is designed to accelerate industry-standard 
encryption algorithms to provide "wire-speed" encryption and to secure 
data without any changes to applications, networks, or storage devices. 
For more information, go to
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=== RESOURCES AND EVENTS ======================================   For more security-related resources, visit
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Your business, like most today, relies upon its computing systems to 
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get step-by-step instructions on building a virtual machine for Windows 
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=== FEATURED WHITE PAPER ======================================
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network and learn about technologies and methodologies for defending 
against inappropriate content, spyware, IM, and P2P. 
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