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Linux Security Week: September 12th 2005 Print E-mail
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Source: LinuxSecurity.com Contributors - Posted by Benjamin D. Thomas   
Linux Security Week This week, perhaps the most interesting articles include "Security moves back into top 5 IT priorities," "Popular policies: keeping storage secure," and "The Mobility Threat."


Master of Science in Information Security - Earn your Master of Science in Information Security online from Norwich University. Designated a "Center of Excellence", the program offers a solid education in the management of information assurance, and the unique case study method melds theory into practice. Using today's e-Learning technology, you can earn this esteemed degree, without disrupting your career or home life.

LINUX ADVISORY WATCH - This week, advisories were released for proftpd, sqwebmail, polygen, affix, zsync, phpgroupware, webcalendar, pcre3, ntp, cvs, kdelibs, evince, openmotif, cman, gnbd-kernel, dlm-kernel, lockdev, perl, termcap, ckermit, kdegraphics, squid, pam, setup, tar, openssh, tzdata, httpd, mplayer, and phpldapadmin. The distributors include Debian, Fedora, Gentoo, and Red Hat.

LinuxSecurity.com Feature Extras:

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.

Getting to Know Linux Security: File Permissions - Welcome to the first tutorial in the 'Getting to Know Linux Security' series. The topic explored is Linux file permissions. It offers an easy to follow explanation of how to read permissions, and how to set them using chmod. This guide is intended for users new to Linux security, therefore very simple.


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.


  IptablesWeb v.1.0
  8th, September, 2005

IptablesWeb is a free software (under GPL licence): it makes possible to inspect iptables logs by using a web browser. It's a plugin-based multilanguage software written in PHP using 3 free php classes. More information: http://iptablesweb.sourceforge.net/

http://www.linuxsecurity.com/content/view/120297

 
  Creating info society: Broadband and info security
  6th, September, 2005

The explosion of spamming, hoaxes and cyber attacks has highlighted just how vulnerable users are to security breaches and the steps they need to take to protect themselves. While both dial-up and broadband connections can be affected by such security breaches, an always-on broadband connection is undoubtedly an easier target. This is because the always-on nature of a broadband connection means that attacks and hacking can happen around the clock, raising the stakes by comparison with a computer that is only on for short periods. Luckily, there are many tools available to make broadband connections secure and attractive to users and potential users.

http://www.linuxsecurity.com/content/view/120310

 
  Big debate over small packets
  8th, September, 2005

Fernando Gont is nothing if not tenacious. Earlier this year, the Argentinian researcher highlighted several attacks that could disrupt network connections using the Internet control message protocol, or ICMP, and proposed four changes to the structure and handling of network-data packets that would essentially eliminate the risk.

http://www.linuxsecurity.com/content/view/120329

 
  Cisco Issues Fixes for Vulnerable Web Routers
  8th, September, 2005

Cisco alerted its customers Wednesday about a serious security flaw in many of its Internet routers, which serve as key intersections in channeling Web and e-mail traffic from point to point. Cisco Systems Inc., based in San Jose, Calif., warned that attackers could use the flaw to seize control over specified vulnerable routers—not most routers currently in use.

http://www.linuxsecurity.com/content/view/120333

 
  MS wrong on security claims: Red Hat
  6th, September, 2005

Red Hat is accusing Microsoft of getting its facts wrong in its latest attack on Linux security. In an update on security at Microsoft's recent world-wide partner conference, the company's security head Mike Nash took aim at Linux to single out Red Hat.

Nash says between January and June this year, Microsoft released 38 security bulletins for Windows Server 2003, while in the same period 234 were issued for Red Hat's Enterprise Linux 3.

http://www.linuxsecurity.com/content/view/120309
 
  OpenSSH update fixes recent vulnerabilities
  5th, September, 2005

The first fix prevents "GatewayPorts" from being "incorrectly activated for dynamic ('-D') port forwardings when no listen address was explicitly specified," according to the changelog. The update also prevents GSSAPI credentials being "delegated to users who log in with methods other than GSSAPI authentication (e.g. public key) when the client requests it." The update also includes a host of bug fixes, improvements and added features according to the announcement.

http://www.linuxsecurity.com/content/view/120299

 
  Red Hat Unveils IT Courses
  7th, September, 2005

Red Hat, the world's leading provider of open source solutions to the Enterprise, announced the addition of Institute of Advanced Computing Management (IACM) to their Authorised Training Partner Network, which extends across India, Nepal, Bangladesh, Sri Lanka and Pakistan. Red Hat's complete range of Training and Certification programs will now be available at IACM.

Red Hat offers the highest quality of Linux and Open Source training and certification. Red Hat Certified Engineer (RHCE) and Red Hat Certified Technician (RHCT) are highly valued among professionals as they are an actual measure of performance tested through live implementation. Red Hat certified Linux professionals are considered to be world class.

http://www.linuxsecurity.com/content/view/120320

 
  Security moves back into top 5 IT priorities
  7th, September, 2005

With Labor Day weekend quickly vanishing into a memory, the team has just finished compiling this month's IT priorities data. The big news is that what happened last month with security is now pretty much undone. It is back in the top 5 list, just barely edging out IT management for the fifth position (it was in fourth back in July). Software infrastructure and hardware upgrades also swapped positions and are in second and third respectively. As usual, wired and wireless projects are up on top as organizations buy into data and voice network convergence and install wireless networking equipment. Overall, things are looking good. According to the US Commerce Department, in Q2 2005, businesses spent 17.3% more on computers and peripheral equipment than they did in Q2 2004.

http://www.linuxsecurity.com/content/view/120321

 
  Email security - what are the issues?
  8th, September, 2005

As email becomes more prevalent in the market, the importance of email security becomes more significant. In particular, the security implications associated with the management of email storage, policy enforcement, auditing, archiving and data recovery.

http://www.linuxsecurity.com/content/view/120331

 
  Popular policies: keeping storage secure
  9th, September, 2005

Secure storage of data has always been essential for any organisation, of whatever size. In the past this involved accurate filing of paper records, and then keeping the physical archive secure – whether it was simply locking a filing cabinet, or guarding an entire building.

http://www.linuxsecurity.com/content/view/120345

 
  The Mobility Threat
  5th, September, 2005

We live in an era where mobile devices are being used by all levels of society. Today, it is fairly common to see a CEO or a school kid carrying a PDA or mobile phone. According to a survey by Infocomm Authority of Singapore (IDA), the penetration rate of mobile phones in Singapore has grown to 91 percent in 2004. Sophisticated PDA phones and other mobile devices such as the Blackberry are actually miniaturised PCs and they have become ubiquitous.

http://www.linuxsecurity.com/content/view/120300

 

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