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Linux Security Week: July 11th 2005 Print E-mail
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Source: LinuxSecurity.com Contributors - Posted by Pax Dickinson   
Linux Security Week This week, perhaps the most interesting articles include "Linux Gets High Marks For Security", "Wi-Fi mooching and the law", and "Hacking for dollars".


Internet Productivity Suite: Open Source Security - Trust Internet Productivity Suite's open source architecture to give you the best security and productivity applications available. Collaborating with thousands of developers, Guardian Digital security engineers implement the most technologically advanced ideas and methods into their design.

LINUX ADVISORY WATCH This week, advisories were released for ppxp, gaim, clamav, razor, trac, zlib, bzip2, cvs, spamassassin, sudo, ht, fuse, netpbm, kernel, cryptsetup, selinux-policy, kdevelop, kde, php, gjdoc, javacc, lucene, grep, php-xmlrpc, phpBB, realplayer, tikiwiki, and cacti. The distributors include Fedora, Gentoo, and Red Hat.

LinuxSecurity.com Feature Extras:

Pull The Plug Revisited: An Interview Five Years Later - Five years after our original interview with Brian Gemberling, founder of PullthePlug.org, we catch up with Daniel Alvarez and the rest of the site's administrative management. Its structured management and focus on the community will ensure many years of continued success. You're asking, what is pull the plug? Read more to find out...

Linux File & Directory Permissions Mistakes - One common mistake Linux administrators make is having file and directory permissions that are far too liberal and allow access beyond that which is needed for proper system operations. A full explanation of unix file permissions is beyond the scope of this article, so I'll assume you are familiar with the usage of such tools as chmod, chown, and chgrp. If you'd like a refresher, one is available right here on linuxsecurity.com.

Introduction: Buffer Overflow Vulnerabilities - Buffer overflows are a leading type of security vulnerability. This paper explains what a buffer overflow is, how it can be exploited, and what countermeasures can be taken to prevent the use of buffer overflow vulnerabilities.


Bulletproof Virus Protection - Protect your network from costly security breaches with Guardian Digital’s multi-faceted security applications. More then just an email firewall, on demand and scheduled scanning detects and disinfects viruses found on the network. Click to find out more!

Take advantage of our Linux Security discussion list! This mailing list is for general security-related questions and comments. To subscribe send an e-mail to security-discuss-request@linuxsecurity.com with "subscribe" as the subject.

Thank you for reading the LinuxSecurity.com weekly security newsletter. The purpose of this document is to provide our readers with a quick summary of each week's most relevant Linux security headline.


  The Death Of A Firewall
  8th, July, 2005

Three years ago, I proposed to our technology architects that we eliminate our network firewalls. Today, we're close to achieving that goal. Back then, I thought that network-based firewalls were losing their effectiveness, enabling a mind-set that was flawed. Today, I'm certain.

http://www.linuxsecurity.com/content/view/119533
 
  Debian struggling with security
  5th, July, 2005

Linux distributor is falling behind rivals in releasing security updates, due to server configuration problems and manpower shortages Debian is facing difficulties getting timely security updates to users of its Linux distribution due to lack of manpower and software problems.

http://www.linuxsecurity.com/content/view/119483
 
  Does OS matter anymore for security?
  6th, July, 2005

Whenever I've touched on the sensitive topic of Linux vs. Windows or Apache vs. Microsoft IIS security, I expected the usual flame treatment and nasty name calling to fly. It's usually taken as gospel in many IT circles to assume that Windows Security is an oxymoron; anyone who dares to suggest using Microsoft IIS 6.0 for a public web server faces serious ridicule. To see if there was any truth to this presumption that Windows Server is fundamentally insecure, I looked up these hacking statistics from www.zone-h.org for 2003 to 2004. Not only did it not show that Windows was hacked more often, but just the opposite. The Linux servers were actually getting hacked and defaced far more often than the Windows server and Apache was also being hacked and defaced more than Microsoft IIS.

http://www.linuxsecurity.com/content/view/119502
 
  The root of the rootkit
  7th, July, 2005

Pretend you're a hacker. You just found a system that is no match for your 'leet skillz' and gained root access. Now what? Sooner or later, the system administrator is going to notice his box is 'owned' and you'll be kicked out after the system is patched. That's why you install a rootkit.

http://www.linuxsecurity.com/content/view/119513
 
  Effective Network Management for Security and Compliance
  8th, July, 2005

The facts are astounding: Over 80% of enterprises have reported downtime due to a network security incident; over 50% of all network security break-ins occur from manual device configuration; and some companies can face up to $1M per day in fines if their network infrastructures do not comply with compliance legislation.

http://www.linuxsecurity.com/content/view/119528
 
  Apache 2.x Request Smuggling Vulnerability
  8th, July, 2005

All versions of Apache previous to 2.1.6 are vulnerable to a HTTP request smuggling attack which can allow malicious piggybacking of false HTTP requests hidden within valid content. This method of HTTP Request Smuggling was first discussed by Watchfire some time ago. The issue has been addressed by an update to version 2.1.6.

http://www.linuxsecurity.com/content/view/119529
 
  Adobe Warns of Security Flaw to Software
  7th, July, 2005

A security flaw in the popular document-sharing software, Adobe Reader, could be exploited to seize control of a computer system, according to the software's maker.

Adobe Systems Inc. issued a warning on its Web site Tuesday saying that the flaw affects only the Adobe Reader versions 5.0.9, 5.0.10, which were written for the Unix computer operating system.

http://www.linuxsecurity.com/content/view/119514
 
  Debian addresses security concerns
  8th, July, 2005

Popular Linux distributor Debian has moved quickly to address concerns it was falling behind on security.

The organisation's security team has issued a host of announcements and informed the community it has resolved problems with the infrastructure governing security updates.

http://www.linuxsecurity.com/content/view/119531
 
  White hat heroes
  4th, July, 2005

Scanit is holding an ethical hacking course from September 4-8 2005 at Knowledge Village in Dubai in a bid to encourage regional network professionals to use the black arts of hacking to make their companies safer. The course is intended for network and system engineers that want to learn how to assess the security of their IT infrastructure and IT consultants who want to learn to perform in-depth security assessments.

http://www.linuxsecurity.com/content/view/119476
 
  Rats in the security world
  4th, July, 2005

Not too long ago my wife and I decided to try out a Chinese restaurant in our area we had never visited before. I was looking at the menu and my wife gasped, then laughed a bit. I looked up and she pointed out a rat crawling right under the restaurant's buffet table.

I got the waitress's attention and pointed out the rat to her. The waitress, a large Asian woman with a heavy oriental accent replied, "Oh ya' his name is Tock." She giggled a bit then walked off.

http://www.linuxsecurity.com/content/view/119477
 
  Open source vs. Windows: security debate rages
  5th, July, 2005

It's a topic of fierce debate among high-tech cognoscenti: What's more secure -- "open source" code such as Linux and Apache, or proprietary "closed source" operating systems and applications, Microsoft's in particular? The regularity with which Microsoft has taken to announcing vulnerabilities and consequent software fixes has left few cheering about its security. In contrast, high expectations endure for open source, with proponents arguing that it's inherently more secure because a much larger set of developers can read the code, vet it and correct problems.

http://www.linuxsecurity.com/content/view/119484
 
  Data Security Is Retailers' Job, Too
  5th, July, 2005

Consumers aren't the only ones who pay when hackers steal credit-card numbers and other customer data. Retailers, which often hold customer information in their IT systems, can be liable for security breaches.

http://www.linuxsecurity.com/content/view/119485
 
  Reverse engineering patches making disclosure a moot choice?
  5th, July, 2005

When Microsoft released limited information on a critical vulnerability in Internet Explorer last month, reverse engineer Halvar Flake decided to dig deeper.

Using his company's tool for analyzing the differences in the patched and unpatched versions of a program, Flake pinpointed the portable networked graphics (PNG) vulnerability that Microsoft fixed with its latest update, locating the specific changes in less than 20 minutes.

http://www.linuxsecurity.com/content/view/119488
 
  Security meltdown: who's to blame?
  6th, July, 2005

If there's one thing the security industry is really good at, it's pointing fingers. We all like to say that "security starts with you", so that everyone can share a piece of the mud pie. While we're pointing fingers, let's look at a few groups and individuals and see how they can share the blame for their own insecurity - and prevent the spread of viruses, Trojans and worms.

http://www.linuxsecurity.com/content/view/119501
 
  Comparing security on Windows and Linux
  6th, July, 2005

Software security is quite often a subjective measure, mainly because there is the risk of a security vulnerability being created with every line of programming code. Each vulnerability has a degree of severity which may or may not be important to the end user. The result is an infinite number of interpretations of security, especially in a complex application such as an operating system like Windows or Linux.

http://www.linuxsecurity.com/content/view/119504
 
  Hacking for dollars
  6th, July, 2005

In the past, lone hackers defaced Web sites or launched global worm attacks, mainly to gain notoriety among their peers.

Today, they use their skills for profit. They hunt for security flaws and find ways to exploit them, hijack computers and rent those out for use as spam relays, or participate in targeted attacks that steal sensitive information from individuals or spy on businesses.

http://www.linuxsecurity.com/content/view/119505
 
  Preventing malicious spyware in the enterprise
  6th, July, 2005

Spyware threats are becoming more sophisticated; hackers are finding ways to lodge key logging, backdoor programs and trojans onto more desktops. However, anti-spyware tools have not kept up with this increased complexity.

http://www.linuxsecurity.com/content/view/119510
 
  Zlib Security Flaw Exposes Swath of Programs
  7th, July, 2005

A serious security flaw has been identified in Zlib, a widely used data compression library. Fixes have begun to appear, but a large number of programs could be affected.

Zlib is a data compression library that is used by many third-party programs and is distributed with many operating systems, including many Linux and BSD distributions.

http://www.linuxsecurity.com/content/view/119520
 
  Linux Gets High Marks For Security
  11th, July, 2005

The IT world may be an insecure place, but don't blame Linux. In fact, very few IT pros participating in InformationWeek Research's Linux and open-source survey say Linux has introduced security problems into their IT environments.

Only 6% of 225 user sites report security issues from Linux deployments on their servers, while 6% of 165 Linux PC users attribute a security problem to the open-source operating system. The results indicate a slight decrease in complaints about Linux security from a year ago, when 11% of IT pros encountered security issues with Linux servers and 7% had problems with Linux PCs.

http://www.linuxsecurity.com/content/view/119545
 
  Microsoft claims Windows more secure than Linux
  11th, July, 2005

Microsoft has claimed that open source database products and servers such as Linux have had a "significantly greater number and severity of vulnerabilities compared with Windows Server 2003 and SQL Server 2000".

http://www.linuxsecurity.com/content/view/119546
 
  Hacker magazine shuts up shop
  11th, July, 2005

Hacking magazine Phrack is closing after 20 years of publishing after its editorial team decided to call it a day. The final date for submissions for the special hardback last issue of the mag was Sunday 10 July. Issue 63 will be released at the Defcon and WhatTheHack2005 hacker conventions later this month.

http://www.linuxsecurity.com/content/view/119553
 
  Americans changing tack to shake off spyware
  7th, July, 2005

Nine out of 10 Internet users say they have changed their online habits to avoid spyware and other Internet-based threats, according to a study released on Wednesday.

http://www.linuxsecurity.com/content/view/119515
 
  The coming Web security woes
  5th, July, 2005

Our esteemed leaders in the U.S. Congress are vowing to enact new laws targeting data thieves, backup-tape burglars and other information-age miscreants.

We should be worried.

http://www.linuxsecurity.com/content/view/119489
 
  Wi-Fi mooching and the law
  8th, July, 2005

The recent arrest of a Florida man on charges of unauthorized use of a wireless network could set legal ground rules for open Wi-Fi access.

A man sitting in a Chevy Blazer in a residential neighborhood reportedly was poking around nearby wireless networks in violation of computer crime laws, according to local police.

http://www.linuxsecurity.com/content/view/119534
 
  Noisy party: complainant arrested for stealing?
  11th, July, 2005

The basic facts are that Benjamin Smith III used someone else's WiFi network. The facts aren't in dispute; Smith parked his vehicle outside the home of Richard Dinon, logged onto the network, and did some surfing.

"Surprise! Stealing is illegal!" bellowed Larry Seltzer in his ZD security blog.

http://www.linuxsecurity.com/content/view/119547
 

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