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Bug in latest Linux gives untrusted users root access  03 November 2009 
Source: The Register - Posted by Alex   
A software developer has uncovered a bug in most versions of Linux that could allow untrusted users to gain complete control over the open-source operating system. The null pointer dereference flaw was only fixed in the upcoming 2.6.32 release candidate of the Linux kernel, making virtually all production versions in use at the moment vulnerable.
 
Caution advised when using the ldd system tool  27 October 2009 
Source: H Security - Posted by Anthony Pell   
Bugs in system utilities are not usually particularly interesting from a security point of view, but if the utility is regularly used to obtain information on suspect programs, it's a rather different story.
 
Ubuntuís Encrypted Home Directory: A Canonical Approach to Data Privacy  23 October 2009 
Source: Linux Magazine - Posted by Anthony Pell   
A friend recently quizzed me about the Encrypted Home Directory feature in Ubuntu, but unfortunately his questions were not due simply to his naturally inquisitive nature.
 
Linux Security Notes - AIDE File Integrity  22 October 2009 
Source: HOWTO Forge - Posted by Anthony Pell   
AIDE (Advanced Intrusion Detection Enviornment) is a tool to check the file integrity. It is an opensource substitute for TRIPWIRE. It allows to take snapshots of all the major configuration files, binaries as well as libraries stats. And helps to find which binaries have been changed in case of compromisation of the system. This can be downloaded from http://sourceforge.net.
 
The lifecycle of Web-based malware  01 September 2009 
Source: Net-Security.org - Posted by Benjamin D. Thomas   
HelpNetSecurity writes, "According to the August edition of the MessageLabs Intelligence monthly report, it can be a costly exercise for the bad guys to produce new families of malware in order to maintain their criminal activity at sufficient levels. Registering new domains is much more economical for them, and by spreading the malware across as many different websites and domains as possible, the longevity of each new malware is increased."
 
Monitor your system for threats with rsec alerts  24 August 2009 
Source: TechRepublic - Posted by Anthony Pell   
Vincent Danen gives an overview of the monitoring and reporting tool rsec, which can help you keep a close eye on your systemís security without having to pore over log files. Mandriva has long had their security tool called msec. Love it or hate it, it has been an integral part of all Mandriva Linux versions for years.
 
Hacking The Handshake Between Applications  23 July 2009 
Source: Dark Reading - Posted by Anthony Pell   
Researchers to shed light on a new generation of attacks that exploit the relationship between browsers and their plug-ins -- or between any applications that share information -- and take over a victim's computer.

A little-known class of vulnerabilities can be used to hack the trust between browsers and their plug-ins, as well as other applications, according to new research on tap at Black Hat USA next week in Las Vegas.

 
Linux exploit gets around security barrier  20 July 2009 
Source: CNET - Posted by Administrator   
A security researcher has released zero-day code for a flaw in the Linux kernel, saying that it bypasses security protections in the operating system.

The source code for the exploit was made available last week by researcher Brad Spengler on the Dailydave mailing list. According to the researcher, the code exploits a vulnerability in Linux version 2.6.30, and 2.6.18, and affects both 32-bit and 64-bit versions. The 2.6.18 kernel is used in Red Hat Enterprise Linux 5.

 
Killing Virii with Gentoo and Kaspersky  21 May 2009 
Source: FOSS Boss - Posted by Anthony Pell   
This article talks about a rescue Live Linux CDROM that boots into a Kaspersky antivirus scanner for infected Windows machines. Neat article.

Now this Live CD is absolutely cool, it's a customized build of Gentoo linux (w00t!) that automagically detected the hardware, connected to the network, started an X server, launched a customized icewm environment with Kaspersky's "K" logo as the "start" button down below. I was impressed, and through that GUI I could launch Kaspersky's AntiVirus tool.

The first thing it did was to auto-update itself over the internet. Most definitely needed. Afterwards it located and mounted all Windows NTFS partitions, and I was presented with options to scan them. I chose to scan the c: drive. Scan has begun, the scan tool sports a nice looking GUI, although it can be a bit confusing. Anyway scanning has started churning on the hard-disk. It was a bit slow, took around 3 hours for a 100G c: drive!

 
Secure By Design: How Guardian Digital Secures EnGarde Secure Linux  22 April 2009 
Source: EnGarde Secure Linux - Posted by Dave Wreski   
Here is a brief abstract put together by Guardian Digital that shows security can be achieved with complete functionality, and what other platforms would look like after secure concepts are implemented.
 
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